CY8C20X36A/46A/66A/96A/46AS/66AS (R) 1.8 V CapSense Controller with SmartSenseTM Auto-tuning 1.8 V CapSense(R) Controller with SmartSenseTM Auto-tuning Dual mode GPIO: All GPIOs support digital I/O and analog inputs 25-mA sink current on each GPIO * 120 mA total sink current on all GPIOs Pull-up, high Z, open-drain modes on all GPIOs CMOS drive mode -5 mA source current on ports 0 and 1 and 1 mA on ports 2, 3, and 4 * 20 mA total source current on all GPIOs Features Wide operating range: 1.71 V to 5.5 V Ultra low deep sleep current: 100 nA Configurable capacitive sensing elements 7 A per sensor at 500 ms scan rate Supports SmartSense Auto-tuning Supports a combination of CapSense buttons, sliders, touchpads, touchscreens, and proximity sensors SmartSense_EMC offers superior noise immunity for applications with challenging conducted and radiated noise conditions Powerful Harvard-architecture processor M8C CPU - Up to 4 MIPS with 24 MHz Internal clock, external crystal resonator or clock signal Low power at high speed Temperature range: -40 C to +85 C Flexible on-chip memory Three program/data storage size options: * 8 KB flash/1 KB SRAM * 16 KB flash/2 KB SRAM * 32 KB flash/2 KB SRAM 50,000 flash erase/write cycles Partial flash updates Flexible protection modes In-system serial programming (ISSP) Full-speed USB 12 Mbps USB 2.0 compliant Precision, programmable clocking Internal main oscillator (IMO): 6/12/24 MHz 5% Internal low speed oscillator (ILO) at 32 kHz for watchdog and sleep timers Precision 32 kHz oscillator for optional external crystal Programmable pin configurations Up to 36 general-purpose I/Os (GPIOs) (depending on package) Versatile analog system Low-dropout voltage regulator for all analog resources Common internal analog bus enabling capacitive sensing on all pins High power supply rejection ratio (PSRR) comparator 8 to 10-bit incremental analog-to-digital converter (ADC) Additional system resources 2 I C slave: * Selectable to 50 kHz, 100 kHz, or 400 kHz SPI master and slave: Configurable 46.9 kHz to 12 MHz Three 16-bit timers Watchdog and sleep timers Integrated supervisory circuit Emulated E2PROM using flash memory Complete development tools Free development tool (PSoC DesignerTM) Full-featured, in-circuit emulator (ICE) and programmer Full-speed emulation Complex breakpoint structure 128 KB trace memory Versatile package options 16-pin 3 x 3 x 0.6 mm QFN 24-pin 4 x 4 x 0.6 mm QFN 32-pin 5 x 5 x 0.6 mm QFN 48-pin SSOP 48-pin 7 x 7 x 1.0 mm QFN [1] 30-ball WLCSP Note 1. Contact your local sales office for details. Cypress Semiconductor Corporation Document Number: 001-54459 Rev. *O * 198 Champion Court * San Jose, CA 95134-1709 * 408-943-2600 Revised June 15, 2012 CY8C20X36A/46A/66A/96A/46AS/66AS Logic Block Diagram Port 4 Port 3 Port 2 Port 1 Port 0 1.8/2.5/3V LDO [2] PWRSYS (Regulator) PSoC CORE SYSTEM BUS Global Analog Interconnect 1K/2K SRAM Supervisory ROM (SROM) Interrupt Controller 8K/16K/32K Flash Nonvolatile Memory Sleep and Watchdog CPU Core (M8C) 6/12/24 MHz Internal Main Oscillator (IMO) Internal Low Speed Oscillator (ILO) Multiple Clock Sources CAPSENSE SYSTEM Two Comparators Analog Reference CapSense Module Analog Mux SYSTEM BUS USB I2C Slave Internal Voltage References System Resets POR and LVD SPI Master/ Slave Three 16-Bit Programmable Timers Digital Clocks SYSTEM RESOURCES Note 2. Internal voltage regulator for internal circuitry Document Number: 001-54459 Rev. *O Page 2 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Contents PSoC(R) Functional Overview............................................ 4 PSoC Core .................................................................. 4 CapSense System....................................................... 4 Additional System Resources ..................................... 5 Getting Started.................................................................. 6 CapSense Design Guides ........................................... 6 Silicon Errata ............................................................... 6 Development Kits ........................................................ 6 Training ....................................................................... 6 CYPros Consultants .................................................... 6 Solutions Library.......................................................... 6 Technical Support ....................................................... 6 Development Tools .......................................................... 7 PSoC Designer Software Subsystems........................ 7 Designing with PSoC Designer ....................................... 8 Select User Modules ................................................... 8 Configure User Modules.............................................. 8 Organize and Connect ................................................ 8 Generate, Verify, and Debug....................................... 8 Pinouts .............................................................................. 9 16-pin QFN (12 Sensing Inputs)[4] ............................. 9 24-pin QFN (12 Sensing Inputs)................................ 10 24-pin QFN - 18 Sensing Inputs (With USB)............. 11 30-ball WLCSP (26 Sensing Inputs).......................... 12 32-pin QFN (27 Sensing Inputs)................................ 13 32-pin QFN - 24 Sensing Inputs (With USB)............. 14 48-pin SSOP (33 Sensing Inputs) ............................. 15 48-pin QFN (35 Sensing Inputs)................................ 16 48-pin QFN - 35 Sensing Inputs (With USB)............. 17 48-pin QFN (OCD) .................................................... 18 Electrical Specifications ................................................ 19 Absolute Maximum Ratings....................................... 19 Operating Temperature ............................................. 19 DC Chip-Level Specifications.................................... 20 DC GPIO Specifications ............................................ 21 DC Analog Mux Bus Specifications........................... 23 DC Low Power Comparator Specifications ............... 23 Comparator User Module Electrical Specifications ... 24 Document Number: 001-54459 Rev. *O ADC Electrical Specifications .................................... DC POR and LVD Specifications .............................. DC Programming Specifications ............................... DC I2C Specifications ............................................... DC Reference Buffer Specifications.......................... DC IDAC Specifications ............................................ AC Chip-Level Specifications .................................... AC GPIO Specifications ............................................ AC Comparator Specifications .................................. AC External Clock Specifications .............................. AC Programming Specifications................................ AC I2C Specifications................................................ Packaging Information................................................... Thermal Impedances................................................. Capacitance on Crystal Pins ..................................... Solder Reflow Specifications..................................... Development Tool Selection ......................................... Software .................................................................... Development Kits ...................................................... Evaluation Tools........................................................ Device Programmers................................................. Accessories (Emulation and Programming) .............. Third Party Tools ....................................................... Build a PSoC Emulator into Your Board.................... Ordering Information...................................................... Ordering Code Definitions ......................................... Acronyms ........................................................................ Reference Documents.................................................... Document Conventions ................................................. Units of Measure ....................................................... Numeric Naming........................................................ Glossary .......................................................................... Document History Page ................................................. Sales, Solutions, and Legal Information ...................... Worldwide Sales and Design Support....................... Products .................................................................... PSoC Solutions ......................................................... 24 25 25 26 26 26 27 28 29 29 30 31 34 37 37 37 38 38 38 38 38 39 39 39 40 42 43 43 43 43 44 44 45 47 47 47 47 Page 3 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS PSoC(R) Functional Overview The PSoC family consists of on-chip controller devices, which are designed to replace multiple traditional microcontroller unit (MCU)-based components with one, low cost single-chip programmable component. A PSoC device includes configurable analog and digital blocks, and programmable interconnect. This architecture allows the user to create customized peripheral configurations, to match the requirements of each individual application. Additionally, a fast CPU, Flash program memory, SRAM data memory, and configurable I/O are included in a range of convenient pinouts. The architecture for this device family, as shown in the Logic Block Diagram on page 2, consists of three main areas: The Core CapSense Analog System System Resources (including a full-speed USB port). A common, versatile bus allows connection between I/O and the analog system. required tuning parameters. SmartSense allows engineers to go from prototyping to mass production without re-tuning for manufacturing variations in PCB and/or overlay material properties. SmartSense_EMC In addition to the SmartSense auto tuning algorithm to remove manual tuning of CapSense applications, SmartSense_EMC user module incorporates a unique algorithm to improve robustness of capacitive sensing algorithm/circuit against high frequency conducted and radiated noise. Every electronic device must comply with specific limits for radiated and conducted external noise and these limits are specified by regulatory bodies (for example, FCC, CE, U/L and so on). A very good PCB layout design, power supply design and system design is a mandatory for a product to pass the conducted and radiated noise tests. An ideal PCB layout, power supply design or system design is not often possible because of cost and form factor limitations of the product. SmartSense_EMC with superior noise immunity is well suited and handy for such applications to pass radiated and conducted noise test. Figure 1. CapSense System Block Diagram Each CY8C20X36A/46A/66A/96A/46AS/66AS PSoC device includes a dedicated CapSense block that provides sensing and scanning control circuitry for capacitive sensing applications. Depending on the PSoC package, up to 36 GPIO are also included. The GPIO provides access to the MCU and analog mux. CS1 IDAC Analog Global Bus PSoC Core The PSoC Core is a powerful engine that supports a rich instruction set. It encompasses SRAM for data storage, an interrupt controller, sleep and watchdog timers, and IMO and ILO. The CPU core, called the M8C, is a powerful processor with speeds up to 24 MHz. The M8C is a 4-MIPS, 8-bit Harvard-architecture microprocessor. CS2 CSN Vr Reference Buffer Cinternal CapSense System Comparator The analog system contains the capacitive sensing hardware. Several hardware algorithms are supported. This hardware performs capacitive sensing and scanning without requiring external components. The analog system is composed of the CapSense PSoC block and an internal 1 V or 1.2 V analog reference, which together support capacitive sensing of up to 33 inputs [3]. Capacitive sensing is configurable on each GPIO pin. Scanning of enabled CapSense pins are completed quickly and easily across multiple ports. SmartSense SmartSense is an innovative solution from Cypress that removes manual tuning of CapSense applications. This solution is easy to use and provides a robust noise immunity. It is the only auto-tuning solution that establishes, monitors, and maintains all Cexternal (P0[1] or P0[3]) Mux Mux Refs Cap Sense Counters CSCLK IMO CapSense Clock Select Oscillator Note 3. 36 GPIOs = 33 pins for capacitive sensing + 2 pins for I2C + 1 pin for modulator capacitor. Document Number: 001-54459 Rev. *O Page 4 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Analog Multiplexer System The Analog Mux Bus can connect to every GPIO pin. Pins are connected to the bus individually or in any combination. The bus also connects to the analog system for analysis with the CapSense block comparator. Switch control logic enables selected pins to precharge continuously under hardware control. This enables capacitive measurement for applications such as touch sensing. Other multiplexer applications include: Complex capacitive sensing interfaces, such as sliders and touchpads. communication interface, three 16-bit programmable timers, and various system resets supported by the M8C. These system resources provide additional capability useful to complete systems. Additional resources include low voltage detection and power on reset. The merits of each system resource are listed here: The I2C slave/SPI master-slave module provides 50/100/400 kHz communication over two wires. SPI communication over three or four wires runs at speeds of 46.9 kHz to 3 MHz (lower for a slower system clock). Low-voltage detection (LVD) interrupts can signal the application of falling voltage levels, while the advanced power-on-reset (POR) circuit eliminates the need for a system supervisor. Additional System Resources System resources provide additional capability, such as configurable USB and I2C slave, SPI master/slave An internal reference provides an absolute reference for capacitive sensing. A register-controlled bypass mode allows the user to disable the LDO regulator. Chip-wide mux that allows analog input from any I/O pin. Crosspoint connection between any I/O pin combinations. Document Number: 001-54459 Rev. *O Page 5 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Getting Started The quickest way to understand PSoC silicon is to read this datasheet and then use the PSoC Designer Integrated Development Environment (IDE). This datasheet is an overview of the PSoC integrated circuit and presents specific pin, register, and electrical specifications. For in depth information, along with detailed programming details, see the Technical Reference Manual for the CY8C20X36A/46A/66A/96A/46AS/66AS PSoC devices. For up-to-date ordering, packaging, and electrical specification information, see the latest PSoC device datasheets on the web at www.cypress.com/psoc. CapSense Design Guides Design Guides are an excellent introduction to the wide variety of possible CapSense designs. They are located at www.cypress.com/go/CapSenseDesignGuides. Refer Getting Started with CapSense design guide for information on CapSense design and CY8C20XX6A/H/AS CapSense(R) Design Guide for specific information on CY8C20XX6A/AS CapSense controllers. Silicon Errata Errata documents known issues with silicon including errata trigger conditions, scope of impact, available workarounds and silicon revision applicability. Refer to Silicon Errata for the PSoC(R) CY8C20x36A/46A/66A/96A/46AS/66AS/36H/46H families available at http://www.cypress.com/?rID=56239 for errata information on CY8C20xx6A/AS/H family of device. Compare Document Number: 001-54459 Rev. *O errata document with datasheet for a complete functional description of device. Development Kits PSoC Development Kits are available online from and through a growing number of regional and global distributors, which include Arrow, Avnet, Digi-Key, Farnell, Future Electronics, and Newark. Training Free PSoC technical training (on demand, webinars, and workshops), which is available online via www.cypress.com, covers a wide variety of topics and skill levels to assist you in your designs. CYPros Consultants Certified PSoC consultants offer everything from technical assistance to completed PSoC designs. To contact or become a PSoC consultant go to the CYPros Consultants web site. Solutions Library Visit our growing library of solution focused designs. Here you can find various application designs that include firmware and hardware design files that enable you to complete your designs quickly. Technical Support Technical support - including a searchable Knowledge Base articles and technical forums - is also available online. If you cannot find an answer to your question, call our Technical Support hotline at 1-800-541-4736. Page 6 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Development Tools PSoC DesignerTM is the revolutionary integrated design environment (IDE) that you can use to customize PSoC to meet your specific application requirements. PSoC Designer software accelerates system design and time to market. Develop your applications using a library of precharacterized analog and digital peripherals (called user modules) in a drag-and-drop design environment. Then, customize your design by leveraging the dynamically generated application programming interface (API) libraries of code. Finally, debug and test your designs with the integrated debug environment, including in-circuit emulation and standard software debug features. PSoC Designer includes: Code Generation Tools The code generation tools work seamlessly within the PSoC Designer interface and have been tested with a full range of debugging tools. You can develop your design in C, assembly, or a combination of the two. Assemblers. The assemblers allow you to merge assembly code seamlessly with C code. Link libraries automatically use absolute addressing or are compiled in relative mode, and linked with other software modules to get absolute addressing. Application editor graphical user interface (GUI) for device and user module configuration and dynamic reconfiguration Extensive user module catalog C Language Compilers. C language compilers are available that support the PSoC family of devices. The products allow you to create complete C programs for the PSoC family devices. The optimizing C compilers provide all of the features of C, tailored to the PSoC architecture. They come complete with embedded libraries providing port and bus operations, standard keypad and display support, and extended math functionality. Integrated source-code editor (C and assembly) Debugger Free C compiler with no size restrictions or time limits Built-in debugger In-circuit emulation PSoC Designer has a debug environment that provides hardware in-circuit emulation, allowing you to test the program in a physical system while providing an internal view of the PSoC device. Debugger commands allow you to read and program and read and write data memory, and read and write I/O registers. You can read and write CPU registers, set and clear breakpoints, and provide program run, halt, and step control. The debugger also lets you to create a trace buffer of registers and memory locations of interest. Built-in support for communication interfaces: 2 Hardware and software I C slaves and masters Full-speed USB 2.0 Up to four full-duplex universal asynchronous receiver/transmitters (UARTs), SPI master and slave, and wireless PSoC Designer supports the entire library of PSoC 1 devices and runs on Windows XP, Windows Vista, and Windows 7. PSoC Designer Software Subsystems Online Help System The online help system displays online, context-sensitive help. Designed for procedural and quick reference, each functional subsystem has its own context-sensitive help. This system also provides tutorials and links to FAQs and an Online Support Forum to aid the designer. Design Entry In the chip-level view, choose a base device to work with. Then select different onboard analog and digital components that use the PSoC blocks, which are called user modules. Examples of user modules are analog-to-digital converters (ADCs), digital-to-analog converters (DACs), amplifiers, and filters. Configure the user modules for your chosen application and connect them to each other and to the proper pins. Then generate your project. This prepopulates your project with APIs and libraries that you can use to program your application. The tool also supports easy development of multiple configurations and dynamic reconfiguration. Dynamic reconfiguration makes it possible to change configurations at run time. In essence, this lets you to use more than 100 percent of PSoC's resources for an application. Document Number: 001-54459 Rev. *O In-Circuit Emulator A low-cost, high-functionality in-circuit emulator (ICE) is available for development support. This hardware can program single devices. The emulator consists of a base unit that connects to the PC using a USB port. The base unit is universal and operates with all PSoC devices. Emulation pods for each device family are available separately. The emulation pod takes the place of the PSoC device in the target board and performs full-speed (24 MHz) operation. Page 7 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Designing with PSoC Designer The development process for the PSoC device differs from that of a traditional fixed-function microprocessor. The configurable analog and digital hardware blocks give the PSoC architecture a unique flexibility that pays dividends in managing specification change during development and lowering inventory costs. These configurable resources, called PSoC blocks, have the ability to implement a wide variety of user-selectable functions. The PSoC development process is: 1. Select user modules. 2. Configure user modules. 3. Organize and connect. 4. Generate, verify, and debug. Select User Modules PSoC Designer provides a library of prebuilt, pretested hardware peripheral components called "user modules". User modules make selecting and implementing peripheral devices, both analog and digital, simple. Configure User Modules Each user module that you select establishes the basic register settings that implement the selected function. They also provide parameters and properties that allow you to tailor their precise configuration to your particular application. For example, a PWM User Module configures one or more digital PSoC blocks, one for each eight bits of resolution. Using these parameters, you can establish the pulse width and duty cycle. Configure the parameters and properties to correspond to your chosen application. Enter values directly or by selecting values from drop-down menus. All of the user modules are documented in datasheets that may be viewed directly in PSoC Designer or on the Cypress website. These user module datasheets explain the Document Number: 001-54459 Rev. *O internal operation of the user module and provide performance specifications. Each datasheet describes the use of each user module parameter, and other information that you may need to successfully implement your design. Organize and Connect Build signal chains at the chip level by interconnecting user modules to each other and the I/O pins. Perform the selection, configuration, and routing so that you have complete control over all on-chip resources. Generate, Verify, and Debug When you are ready to test the hardware configuration or move on to developing code for the project, perform the "Generate Configuration Files" step. This causes PSoC Designer to generate source code that automatically configures the device to your specification and provides the software for the system. The generated code provides APIs with high-level functions to control and respond to hardware events at run time, and interrupt service routines that you can adapt as needed. A complete code development environment lets you to develop and customize your applications in C, assembly language, or both. The last step in the development process takes place inside PSoC Designer's Debugger (accessed by clicking the Connect icon). PSoC Designer downloads the HEX image to the ICE where it runs at full-speed. PSoC Designer debugging capabilities rival those of systems costing many times more. In addition to traditional single-step, run-to-breakpoint, and watch-variable features, the debug interface provides a large trace buffer. It lets you to define complex breakpoint events that include monitoring address and data bus values, memory locations, and external signals. Page 8 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Pinouts The CY8C20X36A/46A/66A/96A/46AS/66AS PSoC device is available in a variety of packages, which are listed and illustrated in the following tables. Every port pin (labeled with a "P") is capable of Digital I/O and connection to the common analog bus. However, VSS, VDD, and XRES are not capable of Digital I/O. 16-pin QFN (12 Sensing Inputs)[4] Table 1. Pin Definitions - CY8C20236A, CY8C20246A, CY8C20246AS PSoC Device I/O I P2[3] Crystal input (XIn) IOHR I P1[7] I2C SCL, SPI SS 2 4 IOHR I P1[5] I C SDA, SPI MISO 5 IOHR I P1[3] SPI CLK 6 IOHR I P1[1] ISSP CLK[5], I2C SCL, SPI MOSI 7 Power VSS 8 IOHR I P1[0] 9 IOHR I P1[2] 10 IOHR I P1[4] 11 12 13 Input IOH AI, XOut, P2[5] AI , XIn, P2[3] AI , I2 C SCL, SPI SS, P1[7] AI , I2 C SDA, SPI MISO, P1[5] Ground connection ISSP DATA[5], I2C SDA, SPI CLK[6] Optional external clock (EXTCLK) XRES Active high external reset with internal pull-down I Power P0[4] VDD Supply voltage 14 IOH I P0[7] 15 IOH I P0[3] Integrating input 16 IOH I P0[1] Integrating input 1 2 14 13 Crystal output (XOut) P0[1], AI P0[3], AI P0[7], AI Vdd 3 P2[5] 16 15 2 I Figure 2. CY8C20236A, CY8C20246A, CY8C20246AS 12 3 4 QFN ( Top View) 11 10 9 5 6 7 8 Analog I/O Description P0[4] , AI XRES P1[4] , EXTCLK, AI P1[2] , AI AI, SPI CLK , P1[3] AI, ISSP CLK, SPI MOSI, P1[1] Vss [5,6] AI, ISSP DATA , I2C SDA, SPI CLK , P1[0] Digital 1 Name [5] Type Pin No. LEGEND A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output. Notes 4. No Center Pad. 5. On power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 6. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 9 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 24-pin QFN (12 Sensing Inputs) Table 2. Pin Definitions - CY8C20336A, CY8C20346A, CY8C20346AS [7] I C SDA, SPI MISO P1[3] SPI CLK 7 IOHR I P1[1] ISSP CLK[8], I2C SCL, SPI MOSI 8 9 Power NC No connection VSS Ground connection 10 IOHR I P1[0] 11 IOHR I P1[2] 12 IOHR I P1[4] 13 IOHR I P1[6] 14 Input Optional external clock input (EXTCLK) I/O I P2[0] 16 IOH I P0[0] 17 IOH I P0[2] 18 IOH I P0[4] 19 IOH I P0[6] Power VDD IOH I P0[7] 22 IOH I P0[5] 23 IOH I P0[3] Integrating input 24 IOH I P0[1] Integrating input Power P0[5], AI P0[7], AI Vdd P0[6], AI 22 21 20 19 3 QFN 4 (T o p V ie w ) 16 15 5 14 6 13 Supply voltage 21 CP P 2 [1 ] P 1 [7 ] P 1 [5 ] P 1 [3 ] P 0 [4 ], A I P 0 [2 ], A I P 0 [0 ], A I P 2 [0 ], A I XRES P 1 [6 ], A I XRES Active high external reset with internal pull-down 15 20 ISSP DATA[8], I2C SDA, SPI CLK[9] A I, A I, I2 C S C L , S P I S S , A I, I2 C S D A , S P I M IS O , A I, S P I C L K , 12 P1[5] I AI, EXTCLK, P1[4] I IOHR 18 17 2 11 IOHR 6 1 AI, P1[2] 5 A I, X O u t, P 2 [5] A I, X In , P 2 [3 ] 9 2 10 I2C SCL, SPI SS Vss P1[7] 2 P2[1] I AI, ISSP DATA , I2C SDA, SPI CLK, P1[0] I IOHR [8, 9] I/O 4 P0[1], AI 3 P0[3], AI Crystal input (XIn) 24 Crystal output (XOut) P2[3] 23 P2[5] I 8 I I/O Figure 3. CY8C20336A, CY8C20346A, CY8C20346AS 7 I/O 2 Description NC 1 Name 2 Analog SPI MOSI, P1[1] Digital AI, ISSP CLK , I2C SCL Type Pin No. VSS Center pad must be connected to ground LEGEND A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output. Notes 7. The center pad (CP) on the QFN package must be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If not connected to ground, it must be electrically floated and not connected to any other signal. 8. On power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 9. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 10 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 24-pin QFN - 18 Sensing Inputs (With USB) Table 3. Pin Definitions - CY8C20396A [10] 2 5 IOHR I P1[5] I C SDA, SPI MISO 6 IOHR I P1[3] SPI CLK 7 IOHR I P1[1] ISSP CLK[11], I2C SCL, SPI MOSI 8 Power 9 I/O 10 I/O 11 I I Power VSS Ground D+ USB D+ D- USB D- VDD Supply ISSP DATA[11], I2C SDA, SPI CLK[12] 12 IOHR I P1[0] 13 IOHR I P1[2] 14 IOHR I P1[4] 15 IOHR I P1[6] 16 RESET INPUT XRES Active high external reset with internal pull-down 17 IOH I P0[0] 18 IOH I P0[2] 19 IOH I P0[4] 20 IOH I P0[6] 21 IOH I P0[7] 22 IOH I P0[5] 23 IOH I P0[3] Integrating input 24 IOH I P0[1] Integrating input CP Power VSS Optional external clock input (EXTCLK) P2[5], AI P2[3], AI P2[1], AI AI, I 2 C SCL, SPI SS,P1[7] AI, I2C SDA , SPI MISO,P1[5] AI, SPI CLK ,P1[3] 1 19 P0[1], AI P0[3], AI P0[5], AI P0[7], AI P0[6], AI P0[4], AI I2C SCL, SPI SS 18 17 2 QFN 3 16 4 (Top View) 15 5 14 6 13 P0[2], AI P0[0], AI XRES P1[6], AI P1[4] , AI, EXTCLK P1[2 ], AI AI, ISSP DATA, I2C SDA, SPI CLK, P1[0] P1[7] 21 P2[1] I 20 I IOHR 11 12 I/O 4 [11, 3 22 P2[3] 9 10 P2[5] I 24 I I/O Figure 4. CY8C20396A 23 I/O 2 Description 8 1 Name 7 Analog AI, ISSP CLK, I2C SCL, SPI MOSI, P1[1] Vss D+ DVDD Digital [11 Type Pin No. Center pad must be connected to Ground LEGEND I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output Notes 10. The center pad (CP) on the QFN package must be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If not connected to ground, it must be electrically floated and not connected to any other signal. 11. On power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 12. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 11 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 30-ball WLCSP (26 Sensing Inputs) Table 4. Pin Definitions - CY8C20766A, CY8C20746A 30-ball WLCSP Type Pin No. Digital Analog A1 IOH I P0[2] A2 IOH I P0[6] A3 Power Name Description Figure 5. CY8C20766A 30-ball WLCSP Bottom View VDD Supply voltage Integrating Input A4 IOH I P0[1] A5 I/O I P2[7] B1 I/O I P2[6] B2 IOH I P0[0] B3 IOH I P0[4] B4 IOH I P0[3] Integrating Input B5 I/O I P2[5] Crystal Output (Xout) C1 I/O I P2[2] C2 I/O I P2[4] C3 IOH I P0[7] C4 IOH I P0[5] C5 I/O I P2[3] D1 I/O I P2[0] D2 I/O I P3[0] D3 I/O I P3[1] D4 I/O I P3[3] D5 I/O E1 I Input 2 1 A D E F Top View Crystal Input (Xin) 1 2 3 4 5 A B P2[1] C D IOHR I P1[6] E3 IOHR I P1[4] Optional external clock input (EXT CLK) E4 IOHR I P1[7] I2 E5 IOHR I P1[5] I2C SDA, SPI MISO F1 IOHR I P1[2] F2 IOHR I P1[0] VSS 3 C XRES Active high external reset with internal pull-down Power 4 B E2 F3 5 C SCL, SPI SS E F ISSP DATA[13], I2C SDA, SPI CLK[14] Supply ground F4 IOHR I P1[1] ISSP CLK[13], I2C SCL, SPI MOSI F5 IOHR I P1[3] SPI CLK Notes 13. On power-up , the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 14. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 12 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 32-pin QFN (27 Sensing Inputs) Table 5. Pin Definitions - CY8C20436A, CY8C20446A, CY8C20446AS, CY8C20466A, CY8C20466AS[15] P2[5] Crystal output (XOut) 4 I/O I P2[3] Crystal input (XIn) 5 I/O I P2[1] 6 I/O I P3[3] 7 I/O I P3[1] 8 IOHR I P1[7] I C SCL, SPI SS 9 IOHR I P1[5] I2C SDA, SPI MISO 10 IOHR I P1[3] SPI CLK. 11 IOHR I P1[1] ISSP CLK[16], I2C SCL, SPI MOSI. 12 Power VSS 13 IOHR I P1[0] 14 IOHR I P1[2] 15 IOHR I P1[4] 16 IOHR 17 I Input ISSP DATA[16], I2C SDA, SPI CLK[17] Optional external clock input (EXTCLK) P1[6] XRES I/O I P3[0] 19 I/O I P3[2] 20 I/O I P2[0] 21 I/O I P2[2] 22 I/O I P2[4] 23 I/O I P2[6] 24 IOH I P0[0] 25 IOH I P0[2] 26 IOH I P0[4] 27 IOH I P0[6] QFN (Top View) 24 23 22 21 20 19 18 17 P0[0] , AI P2[6] , AI P2[4] , AI P2[2] , AI P2[0] , AI P3[2] , AI P3[0] , AI XRES [16] 18 Active high external reset with internal pull-down 32 31 Vss P0 [3], AI P0 [5], AI Ground connection. 1 2 3 4 5 6 7 8 9 2 AI , P0[1] AI , P2[7] AI, XOut, P2[5] AI , XIn, P2[3] AI , P2[1] AI , P3[3] AI , P3[1] AI , I2 C SCL, SPI SS, P1[7] P0 [4], AI P0 [2], AI I 26 25 I/O 15 16 3 Integrating input AI, E XTCLK, P 1[4] AI, P 1[6] P2[7] P0 [7], AI Vd d P0 [6], AI P0[1] I CY8C20466A, CY8C20466AS 28 27 I I/O Figure 6. CY8C20436A, CY8C20446A, CY8C20446AS, 13 14 IOH 2 Description 30 29 1 Name A I,ISSP CLK , I2C SCL, SPI MOSI, P1[1] Vss [16] AI , ISSP DATA , I2C SDA, SPI CLK, P1[0] AI, P 1[2] Analog 10 11 12 Digital AI, I2C SDA, SPI MISO, P 1[5] AI, SPI CLK, P 1[3] Type Pin No. 28 Power VDD 29 IOH I P0[7] 30 IOH I P0[5] 31 IOH I P0[3] Supply voltage Integrating input 32 Power VSS Ground connection CP Power VSS Center pad must be connected to ground LEGEND A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output. Notes 15. The center pad (CP) on the QFN package must be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If not connected to ground, it must be electrically floated and not connected to any other signal. 16. On power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 17. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 13 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 32-pin QFN - 24 Sensing Inputs (With USB) Table 6. Pin Definitions - CY8C20496A[18] 4 I/O I P2[1] 5 IOHR I P1[7] I2C SCL, SPI SS 2 I C SDA, SPI MISO 7 IOHR I P1[3] SPI CLK 8 IOHR I P1[1] ISSP CLK[19], I2C SCL, SPI MOSI USB D- I I VDD Power pin 13 IOHR Power I P1[0] ISSP DATA[19], I2C SDA, SPI CLKI[20] 14 IOHR I P1[2] 15 IOHR I P1[4] 16 IOHR 17 I Input P1[6] XRES 18 I/O I P3[0] 19 I/O I P3[2] 20 I/O I P2[0] 21 I/O I P2[2] 22 I/O I P2[4] 23 I/O I P2[6] 24 IOH I P0[0] 25 IOH I P0[2] 26 IOH I P0[4] 27 IOH I P0[6] 28 Power VDD 29 IOH I P0[7] 30 IOH I P0[5] 31 IOH I P0[3] 32 Power Optional external clock input (EXTCLK) VSS Active high external reset with internal pull-down 24 23 22 21 20 19 18 17 P0[0] , AI P2[6] , AI P2[4] , AI P2[2] , AI P2[0] , AI P3[2] , AI P3[0] , AI XRES [19, 20] 10 Vdd ISSP , DATA, I2C SDA, SPI CLK, P1[0] USB D+ D- VSS USB D- D+ Power 12 Vss P0 [3], AI P0 [5], AI Ground Pin 9 11 SPI CLK , P1 [3] [19] ISSP CLK, I2C SCL, SPI MOSI,P1 [ 1 ] QFN (Top View) 9 P1[5] 10 11 12 I Vss IOHR XTAL IN , P2 [ 3 ] AI , P2[ 1 ] I2C SCL, SPI SS , P 1[ 7] I2C SDA, SPI MISO , P 1[ 5] 1 2 3 4 5 6 7 8 USB PHY, D+ 6 AI , P 0[ 1] XTAL OUT, P 2 [ 5] P0 [4], AI P0 [2], AI XTAL In 26 25 XTAL Out P2[3] 15 16 P2[5] I AI, P 1[2] I I/O AI, E XTCLK, P 1[4] AI, P 1[6] I/O 3 Integrating Input P0 [7], AI Vd d P0 [6], AI 2 P0[1] 29 I 28 27 IOH Figure 7. CY8C20496A Description 13 14 1 Name 30 Analog 31 Digital 32 Type Pin No. Power Pin Integrating Input Ground Pin LEGEND A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output. Notes 18. The center pad (CP) on the QFN package must be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If not connected to ground, it must be electrically floated and not connected to any other signal. 19. On power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 20. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 14 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 48-pin SSOP (33 Sensing Inputs) Table 7. Pin Definitions - CY8C20536A, CY8C20546A, and CY8C20566A[21] Pin No. Digital Analog 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 IOH IOH IOH IOH I/O I/O I/O I/O I I I I I I I I Name IOHR IOHR IOHR IOHR I I I I IOHR I P0[7] P0[5] P0[3] P0[1] P2[7] P2[5] P2[3] P2[1] NC NC P4[3] P4[1] NC P3[7] P3[5] P3[3] P3[1] NC NC P1[7] P1[5] P1[3] P1[1] VSS P1[0] 26 27 IOHR IOHR I I P1[2] P1[4] 28 29 30 31 32 IOHR I P1[6] NC NC NC NC I/O I/O I I I/O I/O I/O I/O I I I I 33 34 35 36 37 38 39 40 NC NC XRES I/O I/O I/O I/O I/O I I I I I Figure 8. CY8C20536A, CY8C20546A, and CY8C20566A Description AI, P0[7] AI, P0[5] AI, P0[3] AI P0[1] AI , P2[7] XTALOUT, P2[5] XTALIN, P2[3] AI , P2[1] NC NC AI, P4[3] AI, P4[1] NC AI, P3[7] AI, P3[5] AI, P3[3] AI, P3[1] NC NC I2 C SCL, SPI SS, P1[7] I2 C SDA, SPI MISO, P1[5 ] SPI CLK, P1[3] [21] ISSP CLK, I2 C SCL, SPI MOSI, P1[1 ] VSS Integrating Input Integrating Input XTAL Out XTAL In No connection No connection No connection 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 SSOP 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 VDD P0[6] , AI P0[4] , AI P0[2] , AI P0[0] , AI P2[6] , AI P2[4] , AI P2[2] , AI P2[0] , AI P3[6] , AI P3[4] , AI P3[2] , AI P3[0] , AI XRES NC NC NC NC NC NC P1[6] , AI P1[4] , EXT CLK P1[2] , AI [21, 22] P1[0] , ISSP DATA, I2C SDA, SPI CLK No connection No connection I2C SCL, SPI SS I2C SDA, SPI MISO SPI CLK ISSP CLK[21], I2C SCL, SPI MOSI Ground Pin ISSP DATA[21], I2C SDA, SPI CLK[22] Optional external clock input (EXT CLK) No connection No connection No connection No connection No connection No connection Active high external reset with internal pull-down P3[0] P3[2] P3[4] P3[6] P2[0] Pin No. Digital 41 42 43 I/O I/O I/O I I I P2[2] P2[4] P2[6] 44 45 46 47 48 IOH IOH IOH IOH Power I I I I P0[0] P0[2] P0[4] P0[6] VDD Analog Name Description VREF Power Pin LEGEND A = Analog, I = Input, O = Output, NC = No Connection, H = 5 mA High Output Drive, R = Regulated Output Option. Notes 21. On power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 22. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 15 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 48-pin QFN (35 Sensing Inputs) Table 8. Pin Definitions - CY8C20636A[23, 24] I I I I I I I I I I I I IOHR IOHR I I NC P2[7] P2[5] P2[3] P2[1] P4[3] P4[1] P3[7] P3[5] P3[3] P3[1] P1[7] P1[5] NC NC P1[3] P1[1] 18 19 20 21 22 Power IOHR I VSS DNU DNU VDD P1[0] 23 24 IOHR IOHR P1[2] P1[4] 25 26 IOHR I Input Power I I P1[6] XRES 27 28 29 I/O I/O I/O I I I P3[0] P3[2] P3[4] 30 31 32 33 34 35 36 37 38 39 I/O I/O I/O I/O I/O I/O I/O IOH IOH IOH I I I I I I I I I I P3[6] P4[0] P4[2] P2[0] P2[2] P2[4] P2[6] P0[0] P0[2] P0[4] No connection P0[1], AI Vss P0[3], AI P0[5 ], AI P0[7], AI NC NC Vdd P0[6], AI P0[4], AI P0[2], AI P0[0], AI I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O IOHR IOHR Figure 9. CY8C20636A Description Crystal output (XOut) Crystal input (XIn) NC AI ,P2[7] AI , XOut,P2[5] AI , XIn ,P2[3] AI ,P2[1] AI ,P4[3] AI ,P4[1] AI ,P3[7] AI ,P3[5] AI ,P3[3] AI P3[1] AI ,I2 C SCL, SPI SS,P1[7] I2C SCL, SPI SS I2C SDA, SPI MISO No connection No connection SPI CLK ISSP CLK[23], I2C SCL, SPI MOSI Ground connection 48 47 46 45 44 43 42 41 40 39 38 37 Name 1 2 3 4 5 6 7 8 9 10 11 12 QFN (Top View) 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Digital Analog 36 35 34 33 32 31 30 29 28 27 26 25 P2[6] ,AI P2[4] AI , P2[2] ,AI P2[0] AI , P4[2] ,AI P4[0] ,AI P3[6] ,AI P3[4] , AI P3[2] ,AI P3[0] , AI XRES P1[6] , AI I2C SDA, SPI MISO, A I, P1[5] NC NC SPI CLK, AI, P1[3] [23] AI, ISSP CLK, I2C SCL, SPI MOSI, P1[1] Vss DNU DNU [23, 25] Vdd AI, ISSP DATA1 , I2C SDA, SPI CLK, P1[0] AI, P 1[2] AI, EXTCLK, P1[4] Pin No. Supply voltage ISSP DATA[23], I2C SDA, SPI CLK[25] Optional external clock input (EXTCLK) Active high external reset with internal pull-down Pin No. 40 41 42 43 44 45 46 47 48 CP Digital IOH IOH IOH IOH Analog I Power I I I Power IOH I Power Name P0[6] VDD NC NC P0[7] P0[5] P0[3] VSS P0[1] VSS Description Supply voltage No connection No connection Integrating input Ground connection Center pad must be connected to ground LEGEND A = Analog, I = Input, O = Output, NC = No Connection H = 5 mA High Output Drive, R = Regulated Output. Notes 23. On power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 24. The center pad (CP) on the QFN package must be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If not connected to ground, it must be electrically floated and not connected to any other signal 25. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 16 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 48-pin QFN - 35 Sensing Inputs (With USB) Table 9. Pin Definitions - CY8C20646A, CY8C20646AS, CY8C20666A, CY8C20666AS [26, 27] Pin Figure 10. CY8C20646A, CY8C20646AS, CY8C20666A, Name Description No. Digital Analog CY8C20666AS 25 26 IOHR I Input P1[6] XRES 27 28 29 I/O I/O I/O I I I P3[0] P3[2] P3[4] 30 31 32 33 34 35 36 37 38 39 I/O I/O I/O I/O I/O I/O I/O IOH IOH IOH I I I I I I I I I I P3[6] P4[0] P4[2] P2[0] P2[2] P2[4] P2[6] P0[0] P0[2] P0[4] Crystal output (XOut) Crystal input (XIn) NC AI , P2[7] AI , XOut, P2[5] AI , XIn , P2[3] AI , P2[1] AI , P4[3] AI , P4[1] AI , P3[7] AI , P3[5] AI , P3[3] AI , P3[1] AI , I2 C SCL, SPI SS, P1[7] I2C SCL, SPI SS I2C SDA, SPI MISO No connection No connection SPI CLK ISSP CLK[26], I2C SCL, SPI MOSI Ground connection USB D+ USB DSupply voltage ISSP DATA[26], I2C SDA, SPI CLK[28] Vss P0[3], AI P0[5 ], AI P0[7], AI NC NC Vdd P0[6], AI P0[4], AI P0[2], AI P0[0], AI P1[2] P1[4] I I P0[1], AI IOHR IOHR No connection 48 47 46 45 44 43 42 41 40 39 38 37 23 24 I I I I I I I I I I I I 1 2 3 4 5 6 7 8 9 10 11 12 QFN (Top View) 13 14 15 16 17 18 19 20 21 22 23 24 IOHR I IOHR I Power I/O I/O Power IOHR I NC P2[7] P2[5] P2[3] P2[1] P4[3] P4[1] P3[7] P3[5] P3[3] P3[1] P1[7] P1[5] NC NC P1[3] P1[1] VSS D+ DVDD P1[0] I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O IOHR IOHR 36 35 34 33 32 31 30 29 28 27 26 25 P2[6] , AI P2[4] ,AI P2[2] ,AI P2[0] ,AI P4[2] ,AI P4[0] ,AI P3[6] ,AI P3[4] , AI P3[2] ,AI P3[0] , AI XRES P1[6] , AI I2C SDA, SPI MISO, A I, P1[5] NC NC SPI CLK, A I, P1[3] [26] AI,ISSP CLK , I2C SCL, SPI MOSI, P1[1] Vss D+ DVdd [26, 28] AI,ISSP DATA, I2C SDA, SPI CLK, P1[0] AI, P1[2] AI, EXTCLK, P1[4] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Optional external clock input (EXTCLK) Active high external reset with internal pull-down Pin No. 40 41 42 43 44 45 46 47 48 CP Digital IOH IOH IOH IOH Analog I Power I I I Power IOH I Power Name P0[6] VDD NC NC P0[7] P0[5] P0[3] VSS P0[1] VSS Description Supply voltage No connection No connection Integrating input Ground connection Center pad must be connected to ground LEGEND A = Analog, I = Input, O = Output, NC = No Connection H = 5 mA High Output Drive, R = Regulated Output. Notes 26. On Power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to High impedance state. On reset, after XRES de- asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. In both cases, a pull-up resistance on these lines combines with the pull-down resistance (5.6K ohm) and form a potential divider. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 27. The center pad (CP) on the QFN package must be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If not connected to ground, it must be electrically floated and not connected to any other signal. 28. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 17 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS 48-pin QFN (OCD) 18 19 20 21 22 Power IOHR I VSS D+ DVDD P1[0] 23 IOHR I P1[2] 24 IOHR I P1[4] 25 26 IOHR I Input 27 28 29 30 31 32 33 34 35 36 Power I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I I I I I I I I I I P1[6] XRES Crystal output (XOut) Crystal input (XIn) OCDO A E , P2[7] I AI , XOut, P2[5] AI , XIn , P2[3] AI , P2[1] AI , P4[3] AI , P4[1] AI , P3[7] AI , P3[5] AI , P3[3] AI , P3[1] AI , I2 C SCL, SPI SS, P1[7] I2C SCL, SPI SS I2C SDA, SPI MISO OCD CPU clock output OCD high speed clock output SPI CLK. ISSP CLK[32], I2C SCL, SPI MOSI Ground connection USB D+ USB DSupply voltage ISSP DATA[32], I2C SDA, SPI CLK[33] Optional external clock input (EXTCLK) Active high external reset with internal pull-down P3[0] P3[2] P3[4] P3[6] P4[0] P4[2] P2[0] P2[2] P2[4] P2[6] OCDO Vdd P0[6], AI P0[4], AI P0[2], AI P0[0], AI I I OCD mode direction pin Vss P0[3], AI P0[5 ], AI P0[7], AI OCDE IOHR IOHR OCDOE P2[7] P2[5] P2[3] P2[1] P4[3] P4[1] P3[7] P3[5] P3[3] P3[1] P1[7] P1[5] CCLK HCLK P1[3] P1[1] 48 47 46 45 44 43 42 41 40 39 38 37 I I I I I I I I I I I I 1 2 3 4 5 6 7 8 9 10 11 12 QFN (Top View) 13 14 15 16 17 18 19 20 21 22 23 24 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O IOHR IOHR 36 35 34 33 32 31 30 29 28 27 26 25 P2[6] , AI P2[4] , AI P2[2] , AI P2[0] , AI P4[2] , AI P4[0] , AI P3[6] , AI P3[4] , AI P3[2] , AI P3[0] , AI XRES P1[6] , AI I2C SDA, SPI MISO, AI, P1[5] CCLK HCLK SPI CLK, A I, P1[3] [32] AI,ISSP CLK6, I2C SCL, SPI MOSI, P1[1] Vss D+ DVdd [32, 33] AI,ISSP DATA1 , I2C SDA, SPI CLK, P1[0] AI, P1[2] AI, EXTCLK, P1[4] No. 1[31] 2 3 4 5 6 7 8 9 10 11 12 13 14[31] 15[31] 16 17 P0[1], AI The 48-pin QFN part is for the CY8C20066A On-Chip Debug (OCD). Note that this part is only used for in-circuit debugging. Table 10. Pin Definitions - CY8C20066A [29, 30] Pin Figure 11. CY8C20066A Digital Analog Name Description Pin No. 37 Digital Analog IOH I P0[0] 38 39 IOH IOH I I P0[2] P0[4] 40 41 42[31] 43[31] 44 45 46 47 48 CP IOH I P0[6] VDD OCDO OCDE P0[7] P0[5] P0[3] VSS P0[1] VSS Power IOH IOH IOH I I I Power IOH I Power Name Description Supply voltage OCD even data I/O OCD odd data output Integrating input Ground connection Center pad must be connected to ground LEGEND A = Analog, I = Input, O = Output, NC = No Connection H = 5 mA High Output Drive, R = Regulated Output. Notes 29. This part is available in limited quantities for In-Circuit Debugging during prototype development. It is not available in production volumes. 30. The center pad (CP) on the QFN package must be connected to ground (VSS) for best mechanical, thermal, and electrical performance. If not connected to ground, it must be electrically floated and not connected to any other signal. 31. This pin (associated with OCD part only) is required for connecting the device to ICE-Cube In-Circuit Emulator for firmware debugging purpose. To know more about the usage of ICE-Cube, refer to CY3215-DK PSoC(R) IN-CIRCUIT EMULATOR KIT GUIDE. 32. On Power-up, the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1]) line drives resistive low for 512 sleep clock cycles and both the pins transition to High impedance state. On reset, after XRES de- asserts, the SDA and the SCL lines drive resistive low for 8 sleep clock cycles and transition to high impedance state. In both cases, a pull-up resistance on these lines combines with the pull-down resistance (5.6K ohm) and form a potential divider. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use alternate pins if you encounter issues. 33. Alternate SPI clock. Document Number: 001-54459 Rev. *O Page 18 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Electrical Specifications This section presents the DC and AC electrical specifications of the CY8C20X36A/46A/66A/96A/46AS/66AS PSoC devices. For the latest electrical specifications, confirm that you have the most recent datasheet by visiting the web at http://www.cypress.com/psoc. Figure 12. Voltage versus CPU Frequency 5.5V Vdd Voltage li d ng Va rati n e io Op Reg 1.71V 750 kHz 3 MHz CPU 24 MHz Frequency Absolute Maximum Ratings Exceeding maximum ratings may shorten the useful life of the device. User guidelines are not tested. Table 11. Absolute Maximum Ratings Conditions Min Typ Max Units TSTG Symbol Storage temperature Description Higher storage temperatures reduce data retention time. Recommended Storage Temperature is +25 C 25 C. Extended duration storage temperatures above 85 C degrades reliability. -55 +25 +125 C VDD Supply voltage relative to VSS - -0.5 - +6.0 V VIO DC input voltage - VSS - 0.5 - VDD + 0.5 V VIOZ[34] DC voltage applied to tristate - VSS - 0.5 - VDD + 0.5 V IMIO Maximum current into any port pin - -25 - +50 mA ESD Electrostatic discharge voltage Human body model ESD 2000 - - V LU Latch-up current In accordance with JESD78 standard - - 200 mA Operating Temperature Table 12. Operating Temperature Min Typ Max Units TA Symbol Ambient temperature Description - Conditions -40 - +85 C TC Commercial temperature range - 0 70 C TJ Operational die temperature The temperature rise from ambient to junction is package specific. Refer the Thermal Impedances on page 37. The user must limit the power consumption to comply with this requirement. +100 C -40 - Note 34. Port1 pins are hot-swap capable with I/O configured in High-Z mode, and pin input voltage above VDD. Document Number: 001-54459 Rev. *O Page 19 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS DC Chip-Level Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 13. DC Chip-Level Specifications Symbol VDD [35, 36, 37, 38] Description Supply voltage VDDUSB[35, 36, 37, 38] Operating voltage Conditions Min Typ Max Units No USB activity. Refer the table DC POR and LVD Specifications on page 25 1.71 - 5.50 V USB activity, USB regulator enabled 4.35 - 5.25 V USB activity, USB regulator bypassed 3.15 3.3 3.60 V IDD24 Supply current, IMO = 24 MHz Conditions are VDD 3.0 V, TA = 25 C, CPU = 24 MHz. CapSense running at 12 MHz, no I/O sourcing current - 2.88 4.00 mA IDD12 Supply current, IMO = 12 MHz Conditions are VDD 3.0 V, TA = 25 C, CPU = 12 MHz. CapSense running at 12 MHz, no I/O sourcing current - 1.71 2.60 mA IDD6 Supply current, IMO = 6 MHz Conditions are VDD 3.0 V, TA = 25 C, CPU = 6 MHz. CapSense running at 6 MHz, no I/O sourcing current - 1.16 1.80 mA IDDAVG10 Average supply current per sensor One sensor scanned at 10 mS rate - 250 - A IDDAVG100 Average supply current per sensor One sensor scanned at 100 mS rate - 25 - A IDDAVG500 Average supply current per sensor One sensor scanned at 500 mS rate - 7 - A ISB0 Deep sleep current VDD 3.0 V, TA = 25 C, I/O regulator turned off - 0.10 1.05 A ISB1 Standby current with POR, LVD VDD 3.0 V, TA = 25 C, I/O regulator and sleep timer turned off - 1.07 1.50 A ISBI2C Standby current with I2C enabled - 1.64 - A Conditions are VDD = 3.3 V, TA = 25 C and CPU = 24 MHz Notes 35. When VDD remains in the range from 1.71 V to 1.9 V for more than 50 s, the slew rate when moving from the 1.71 V to 1.9 V range to greater than 2 V must be slower than 1 V/500 s to avoid triggering POR. The only other restriction on slew rates for any other voltage range or transition is the SRPOWER_UP parameter. 36. If powering down in standby sleep mode, to properly detect and recover from a VDD brown out condition any of the following actions must be taken: a.Bring the device out of sleep before powering down. b.Assure that VDD falls below 100 mV before powering back up. c.Set the No Buzz bit in the OSC_CR0 register to keep the voltage monitoring circuit powered during sleep. d.Increase the buzz rate to assure that the falling edge of VDD is captured. The rate is configured through the PSSDC bits in the SLP_CFG register. For the referenced registers, refer to the CY8C20X36 Technical Reference Manual. In deep sleep mode, additional low power voltage monitoring circuitry allows VDD brown out conditions to be detected for edge rates slower than 1V/ms. 37. For USB mode, the VDD supply for bus-powered application should be limited to 4.35 V-5.35 V. For self-powered application, VDD should be 3.15 V-3.45 V. 38. For proper CapSense block functionality, if the drop in VDD exceeds 5% of the base VDD, the rate at which VDD drops should not exceed 200 mV/s. Base VDD can be between 1.8 V and 5.5 V Document Number: 001-54459 Rev. *O Page 20 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS DC GPIO Specifications The following tables list guaranteed maximum and minimum specifications for the voltage and temperature ranges: 3.0 V to 5.5 V and -40 C TA 85 C, 2.4 V to 3.0 V and -40 C TA 85 C, or 1.71 V to 2.4 V and -40 C TA 85 C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 C and are for design guidance only. Table 14. 3.0 V to 5.5 V DC GPIO Specifications Symbol Description Conditions Min Typ Max Units RPU Pull-up resistor - 4 5.60 8 k VOH1 High output voltage Port 2 or 3 or 4 pins IOH < 10 A, maximum of 10 mA source current in all I/Os VDD - 0.20 - - V VOH2 High output voltage Port 2 or 3 or 4 pins IOH = 1 mA, maximum of 20 mA source current in all I/Os VDD - 0.90 - - V VOH3 High output voltage Port 0 or 1 pins with LDO regulator Disabled for port 1 IOH < 10 A, maximum of 10 mA source current in all I/Os VDD - 0.20 - - V VOH4 High output voltage Port 0 or 1 pins with LDO regulator Disabled for port 1 IOH = 5 mA, maximum of 20 mA source current in all I/Os VDD - 0.90 - - V VOH5 High output voltage IOH < 10 A, VDD > 3.1 V, maximum of 4 I/Os Port 1 Pins with LDO Regulator Enabled all sourcing 5 mA for 3 V out 2.85 3.00 3.30 V VOH6 High output voltage IOH = 5 mA, VDD > 3.1 V, maximum of 20 mA Port 1 pins with LDO regulator enabled for source current in all I/Os 3 V out 2.20 - - V VOH7 High output voltage IOH < 10 A, VDD > 2.7 V, maximum of 20 mA Port 1 pins with LDO enabled for 2.5 V out source current in all I/Os 2.35 2.50 2.75 V VOH8 High output voltage IOH = 2 mA, VDD > 2.7 V, maximum of 20 mA Port 1 pins with LDO enabled for 2.5 V out source current in all I/Os 1.90 - - V VOH9 High output voltage IOH < 10 A, VDD > 2.7 V, maximum of 20 mA Port 1 pins with LDO enabled for 1.8 V out source current in all I/Os 1.60 1.80 2.10 V VOH10 High output voltage IOH = 1 mA, VDD > 2.7 V, maximum of 20 mA Port 1 pins with LDO enabled for 1.8 V out source current in all I/Os 1.20 - - V VOL Low output voltage IOL = 25 mA, VDD > 3.3 V, maximum of 60 mA sink current on even port pins (for example, P0[2] and P1[4]) and 60 mA sink current on odd port pins (for example, P0[3] and P1[5]) - - 0.75 V VIL Input low voltage - - - 0.80 V VIH Input high voltage - 2.00 - - V VH Input hysteresis voltage - - 80 - mV IIL Input leakage (Absolute Value) - - 0.001 1 A CPIN Pin capacitance Package and pin dependent Temp = 25 C 0.50 1.70 7 pF VILLVT3.3 Input Low Voltage with low threshold enable set, Enable for Port1 Bit3 of IO_CFG1 set to enable low threshold voltage of Port1 input 0.8 V - - VIHLVT3.3 Input High Voltage with low threshold enable set, Enable for Port1 Bit3 of IO_CFG1 set to enable low threshold voltage of Port1 input 1.4 - - V VILLVT5.5 Input Low Voltage with low threshold enable set, Enable for Port1 Bit3 of IO_CFG1 set to enable low threshold voltage of Port1 input 0.8 V - - VIHLVT5.5 Input High Voltage with low threshold enable set, Enable for Port1 Bit3 of IO_CFG1 set to enable low threshold voltage of Port1 input 1.7 - - V Document Number: 001-54459 Rev. *O Page 21 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Table 15. 2.4 V to 3.0 V DC GPIO Specifications Symbol Description Conditions Min Typ Max Units 4 5.60 8 k IOH < 10 A, maximum of 10 mA source current in all I/Os VDD - 0.20 - - V High output voltage Port 2 or 3 or 4 pins IOH = 0.2 mA, maximum of 10 mA source current in all I/Os VDD - 0.40 - - V VOH3 High output voltage Port 0 or 1 pins with LDO regulator Disabled for port 1 IOH < 10 A, maximum of 10 mA source current in all I/Os VDD - 0.20 - - V VOH4 High output voltage Port 0 or 1 pins with LDO regulator Disabled for Port 1 IOH = 2 mA, maximum of 10 mA source current in all I/Os VDD - 0.50 - - V VOH5A High output voltage IOH < 10 A, VDD > 2.4 V, maximum of Port 1 pins with LDO enabled for 1.8 V out 20 mA source current in all I/Os 1.50 1.80 2.10 V VOH6A High output voltage IOH = 1 mA, VDD > 2.4 V, maximum of 20 mA Port 1 pins with LDO enabled for 1.8 V out source current in all I/Os 1.20 - - V VOL Low output voltage - - 0.75 V VIL Input low voltage - - - 0.72 VIH Input high voltage - 1.40 - VH Input hysteresis voltage - - 80 - mV IIL Input leakage (absolute value) - - 1 1000 nA CPIN Capacitive load on pins Package and pin dependent Temp = 25 C 0.50 1.70 7 pF VILLVT2.5 Input Low Voltage with low threshold enable set, Enable for Port1 Bit3 of IO_CFG1 set to enable low threshold voltage of Port1 input 0.7 V - VIHLVT2.5 Input High Voltage with low threshold enable set, Enable for Port1 Bit3 of IO_CFG1 set to enable low threshold voltage of Port1 input 1.2 RPU Pull-up resistor - VOH1 High output voltage Port 2 or 3 or 4 pins VOH2 IOL = 10 mA, maximum of 30 mA sink current on even port pins (for example, P0[2] and P1[4]) and 30 mA sink current on odd port pins (for example, P0[3] and P1[5]) V V - V Table 16. 1.71 V to 2.4 V DC GPIO Specifications Symbol Description Conditions Min Typ Max Units 4 RPU Pull-up resistor - 5.60 8 k VOH1 High output voltage Port 2 or 3 or 4 pins IOH = 10 A, maximum of 10 mA VDD - 0.20 source current in all I/Os - - V VOH2 High output voltage Port 2 or 3 or 4 pins IOH = 0.5 mA, maximum of 10 mA VDD - 0.50 source current in all I/Os - - V VOH3 High output voltage Port 0 or 1 pins with LDO regulator Disabled for Port 1 IOH = 100 A, maximum of 10 mA VDD - 0.20 source current in all I/Os - - V VOH4 High output voltage Port 0 or 1 Pins with LDO Regulator Disabled for Port 1 IOH = 2 mA, maximum of 10 mA source VDD - 0.50 current in all I/Os - - V VOL Low output voltage IOL = 5 mA, maximum of 20 mA sink current on even port pins (for example, P0[2] and P1[4]) and 30 mA sink current on odd port pins (for example, P0[3] and P1[5]) - 0.40 V Document Number: 001-54459 Rev. *O - Page 22 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Table 16. 1.71 V to 2.4 V DC GPIO Specifications (continued) Symbol Description Conditions Min Typ Max Units VIL Input low voltage - - - 0.30 x VDD V VIH Input high voltage - 0.65 x VDD - - V VH Input hysteresis voltage - - 80 - mV IIL Input leakage (absolute value) - - 1 1000 nA CPIN Capacitive load on pins Package and pin dependent temp = 25 C 0.50 1.70 7 pF Min Typ Max Units Table 17. DC Characteristics - USB Interface Symbol Description Conditions RUSBI USB D+ pull-up resistance With idle bus 900 - 1575 RUSBA USB D+ pull-up resistance While receiving traffic 1425 - 3090 VOHUSB Static output high - 2.8 - 3.6 V VOLUSB Static output low - - - 0.3 V VDI Differential input sensitivity - 0.2 - VCM Differential input common mode range - 0.8 - 2.5 V VSE Single ended receiver threshold - 0.8 - 2.0 V CIN Transceiver capacitance - - - 50 pF V IIO High Z state data line leakage On D+ or D- line -10 - +10 A RPS2 PS/2 pull-up resistance - 3000 5000 7000 REXT External USB series resistor In series with each USB pin 21.78 22.0 22.22 DC Analog Mux Bus Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 18. DC Analog Mux Bus Specifications Symbol RSW Description Conditions Switch resistance to common analog bus - RGND Resistance of initialization switch to VSS The maximum pin voltage for measuring RSW and RGND is 1.8 V - Min Typ Max Units - - 800 - - 800 DC Low Power Comparator Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 19. DC Comparator Specifications Symbol Description Conditions Min Typ Max Units 0.0 - 1.8 V VLPC Low power comparator (LPC) common mode Maximum voltage limited to VDD ILPC LPC supply current - - 10 40 A VOSLPC LPC voltage offset - - 3 30 mV Document Number: 001-54459 Rev. *O Page 23 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Comparator User Module Electrical Specifications The following table lists the guaranteed maximum and minimum specifications. Unless stated otherwise, the specifications are for the entire device voltage and temperature operating range: -40 C TA 85 C, 1.71 V VDD 5.5 V. Table 20. Comparator User Module Electrical Specifications Symbol Min Typ Max Units 50 mV overdrive - 70 100 ns Offset Valid from 0.2 V to VDD - 0.2 V - 2.5 30 mV Current Average DC current, 50 mV overdrive - 20 80 A Supply voltage > 2 V Power supply rejection ratio - 80 - dB Supply voltage < 2 V Power supply rejection ratio - 40 - dB - 0 1.5 V tCOMP PSRR Description Comparator response time Input range Conditions ADC Electrical Specifications Table 21. ADC User Module Electrical Specifications Symbol Description Conditions Min Typ Max Units 0 - VREFADC V - - 5 pF Input VIN Input voltage range CIIN Input capacitance - RIN Input resistance Equivalent switched cap input resistance for 8-, 9-, or 10-bit resolution ADC reference voltage - 1.14 - 1.26 V 2.25 - 6 MHz - 1/(500fF x 1/(400fF x 1/(300fF x data clock) data clock) data clock) Reference VREFADC Conversion Rate FCLK Data clock Source is chip's internal main oscillator. See AC Chip-Level Specifications for accuracy S8 8-bit sample rate Data clock set to 6 MHz. sample rate = 0.001/ (2^Resolution/Data Clock) - 23.43 - ksps S10 10-bit sample rate Data clock set to 6 MHz. sample rate = 0.001/ (2^resolution/data clock) - 5.85 - ksps RES Resolution Can be set to 8-, 9-, or 10-bit 8 - 10 bits DC Accuracy DNL Differential nonlinearity - -1 - +2 LSB INL Integral nonlinearity - -2 - +2 LSB EOFFSET Offset error 8-bit resolution 0 3.20 19.20 LSB 10-bit resolution 0 12.80 76.80 LSB Gain error For any resolution -5 - +5 %FSR IADC Operating current - - 2.10 2.60 mA PSRR Power supply rejection ratio PSRR (VDD > 3.0 V) - 24 - dB PSRR (VDD < 3.0 V) - 30 - dB EGAIN Power Document Number: 001-54459 Rev. *O Page 24 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS DC POR and LVD Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 22. DC POR and LVD Specifications Symbol Description Conditions Min VPOR0 1.66 V selected in PSoC Designer 2.36 V selected in PSoC Designer - VPOR2 2.60 V selected in PSoC Designer VDD must be greater than or equal to 1.71 V during startup, reset from the XRES pin, or reset from watchdog. 1.61 VPOR1 - 2.60 2.66 VPOR3 2.82 V selected in PSoC Designer - 2.82 2.95 VLVD0 2.45 V selected in PSoC Designer 2.40 2.45 2.51 VLVD1 2.71 V selected in PSoC Designer 2.64[39] 2.71 2.78 VLVD2 2.92 V selected in PSoC Designer 2.85[40] 2.92 2.99 VLVD3 3.02 V selected in PSoC Designer 2.95[41] 3.02 3.09 VLVD4 3.13 V selected in PSoC Designer 3.06 3.13 3.20 VLVD5 1.90 V selected in PSoC Designer 1.84 1.90 2.32 VLVD6 1.80 V selected in PSoC Designer 1.75[42] 1.80 1.84 VLVD7 4.73 V selected in PSoC Designer 4.62 4.73 4.83 - Typ Max Units 1.66 1.71 V 2.36 2.41 V DC Programming Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 23. DC Programming Specifications Symbol VDDIWRITE IDDP VILP VIHP IILP IIHP VOLP VOHP FlashENPB FlashDR Description Supply voltage for flash write operations Supply current during programming or verify Input low voltage during programming or verify Input high voltage during programming or verify Input current when Applying VILP to P1[0] or P1[1] during programming or verify Input current when applying VIHP to P1[0] or P1[1] during programming or verify Output low voltage during programming or verify Output high voltage during programming or verify Flash write endurance Flash data retention - Conditions Min 1.71 Typ - Max 5.25 Units V - - 5 25 mA See the appropriate DC GPIO Specifications on page 21 See the appropriate DC GPIO Specifications on page 21 Driving internal pull-down resistor - - VIL V VIH - - V - - 0.2 mA - - 1.5 mA - - VSS + 0.75 V VOH - VDD V 50,000 20 - - - - - Years Driving internal pull-down resistor See appropriate DC GPIO Specifications on page 21. For VDD > 3 V use VOH4 in Table 12 on page 19. Erase/write cycles per block Following maximum Flash write cycles; ambient temperature of 55 C Notes 39. Always greater than 50 mV above VPPOR1 voltage for falling supply. 40. Always greater than 50 mV above VPPOR2 voltage for falling supply. 41. Always greater than 50 mV above VPPOR3 voltage for falling supply. 42. Always greater than 50 mV above VPPOR0 voltage for falling supply. Document Number: 001-54459 Rev. *O Page 25 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS DC I2C Specifications The following tables list guaranteed maximum and minimum specifications for the voltage and temperature ranges: 3.0 V to 5.5 V and -40 C TA 85 C, 2.4 V to 3.0 V and -40 C TA 85 C, or 1.71 V to 2.4 V and -40 C TA 85 C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 C and are for design guidance only. Table 24. DC I2C Specifications Symbol VILI2C VIHI2C Description Input low level Input high level Conditions 3.1 V VDD 5.5 V Min - Typ - Max Units 0.25 x VDD V 2.5 V VDD 3.0 V - - 0.3 x VDD V 1.71 V VDD 2.4 V - - 0.3 x VDD V 1.71 V VDD 5.5 V 0.65 x VDD - - V DC Reference Buffer Specifications The following tables list guaranteed maximum and minimum specifications for the voltage and temperature ranges: 3.0 V to 5.5 V and -40 C TA 85 C, 2.4 V to 3.0 V and -40 C TA 85 C, or 1.71 V to 2.4 V and -40 C TA 85 C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 C and are for design guidance only. Table 25. DC Reference Buffer Specifications Symbol VRef Description Reference buffer output Conditions 1.7 V VDD 5.5 V Min 1 Typ - Max 1.05 Units V VRefHi Reference buffer output 1.7 V VDD 5.5 V 1.2 - 1.25 V DC IDAC Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 26. DC IDAC Specifications Symbol IDAC_DNL IDAC_INL IDAC_Gain (Source) Description Differential nonlinearity Integral nonlinearity Range = 0.5x Range = 1x Range = 2x Range = 4x Range = 8x Document Number: 001-54459 Rev. *O Min -4.5 -5 6.64 14.5 42.7 91.1 184.5 Typ - - - - - - - Max +4.5 +5 22.46 47.8 92.3 170 426.9 Units LSB LSB A A A A A Notes DAC setting = 128 dec. Not recommended for CapSense applications. DAC setting = 128 dec DAC setting = 128 dec Page 26 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS AC Chip-Level Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 27. AC Chip-Level Specifications Min Typ Max Units FIMO24 Symbol IMO frequency at 24 MHz Setting Description - Conditions 22.8 24 25.2 MHz FIMO12 IMO frequency at 12 MHz setting - 11.4 12 12.6 MHz FIMO6 IMO frequency at 6 MHz setting - 5.7 6.0 6.3 MHz FCPU CPU frequency - 0.75 - 25.20 MHz F32K1 ILO frequency - 19 32 50 kHz F32K_U ILO untrimmed frequency - 13 32 82 kHz DCIMO Duty cycle of IMO - 40 50 60 % DCILO ILO duty cycle - 40 50 60 % SRPOWER_UP Power supply slew rate VDD slew rate during power-up - - 250 V/ms tXRST External reset pulse width at power-up After supply voltage is valid 1 - - ms tXRST2 External reset pulse width after power-up[43] Applies after part has booted 10 - - s tOS Startup time of ECO - - 1 - s tJIT_IMO[44] N=32 6 MHz IMO cycle-to-cycle jitter (RMS) - 0.7 6.7 ns 6 MHz IMO long term N (N = 32) cycle-to-cycle jitter (RMS) - 4.3 29.3 ns 6 MHz IMO period jitter (RMS) - 0.7 3.3 ns 12 MHz IMO cycle-to-cycle jitter (RMS) - 0.5 5.2 ns 12 MHz IMO long term N (N = 32) cycle-to-cycle jitter (RMS) - 2.3 5.6 ns 12 MHz IMO period jitter (RMS) - 0.4 2.6 ns 24 MHz IMO cycle-to-cycle jitter (RMS) - 1.0 8.7 ns 24 MHz IMO long term N (N = 32) cycle-to-cycle jitter (RMS) - 1.4 6.0 ns 24 MHz IMO period jitter (RMS) - 0.6 4.0 ns Notes 43. The minimum required XRES pulse length is longer when programming the device (see Table 33 on page 30). 44. Refer to Cypress Jitter Specifications application note, Understanding Datasheet Jitter Specifications for Cypress Timing Products - AN5054 for more information. Document Number: 001-54459 Rev. *O Page 27 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS AC GPIO Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 28. AC GPIO Specifications Symbol FGPIO tRISE23 tRISE23L tRISE01 tRISE01L tFALL tFALLL Description GPIO operating frequency Conditions Normal strong mode Port 0, 1 Rise time, strong mode, Cload = 50 pF Port 2 or 3 or 4 pins Rise time, strong mode low supply, Cload = 50 pF, Port 2 or 3 or 4 pins Rise time, strong mode, Cload = 50 pF Ports 0 or 1 Rise time, strong mode low supply, Cload = 50 pF, Ports 0 or 1 Fall time, strong mode, Cload = 50 pF all ports Fall time, strong mode low supply, Cload = 50 pF, all ports Min 0 Typ - Max Units 6 MHz for MHz 1.71 V <VDD < 2.40 V MHz 12 MHz for 2.40 V < VDD< 5.50 V 80 ns 0 - VDD = 3.0 to 3.6 V, 10% to 90% 15 - VDD = 1.71 to 3.0 V, 10% to 90% 15 - 80 ns VDD = 3.0 to 3.6 V, 10% to 90% LDO enabled or disabled VDD = 1.71 to 3.0 V, 10% to 90% LDO enabled or disabled VDD = 3.0 to 3.6 V, 10% to 90% 10 - 50 ns 10 - 80 ns 10 - 50 ns VDD = 1.71 to 3.0 V, 10% to 90% 10 - 70 ns Figure 13. GPIO Timing Diagram 90% GPIO Pin Output Voltage 10% tRISE23 tRISE01 tRISE23L tRISE01L Document Number: 001-54459 Rev. *O tFALL tFALLL Page 28 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Table 29. AC Characteristics - USB Data Timings Min Typ tDRATE Symbol Full speed data rate Description Average bit rate Conditions 12 - 0.25% 12 Max Units tJR1 Receiver jitter tolerance To next transition -18.5 - 18.5 ns tJR2 Receiver jitter tolerance To pair transition -9.0 - 9 ns tDJ1 FS Driver jitter To next transition -3.5 - 3.5 ns tDJ2 FS Driver jitter To pair transition -4.0 - 4.0 ns tFDEOP Source jitter for differential transition To SE0 transition -2.0 - 5 ns 12 + 0.25% MHz tFEOPT Source SE0 interval of EOP - 160.0 - 175 ns tFEOPR Receiver SE0 interval of EOP - 82.0 - - ns tFST Width of SE0 interval during differential transition - - - 14 ns Min Typ Max Units Table 30. AC Characteristics - USB Driver Symbol Description Conditions tFR Transition rise time 50 pF 4 - 20 ns tFF Transition fall time 50 pF 4 - 20 ns tFRFM[45] Rise/fall time matching - 90 - 111 % VCRS Output signal crossover voltage - 1.30 - 2.00 V AC Comparator Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 31. AC Low Power Comparator Specifications Symbol tLPC Description Comparator response time, 50 mV overdrive Conditions 50 mV overdrive does not include offset voltage. Min Typ Max Units - - 100 ns AC External Clock Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 32. AC External Clock Specifications Symbol FOSCEXT Description Frequency (external oscillator frequency) Conditions - Min Typ Max Units 0.75 - 25.20 MHz High period - 20.60 - 5300 ns Low period - 20.60 - - ns Power-up IMO to switch - 150 - - s Note 45. TFRFM is not met under all conditions. There is a corner case at lower supply voltages, such as those under 3.3 V. This condition does not affect USB communications. Signal integrity tests show an excellent eye diagram at 3.15 V. Document Number: 001-54459 Rev. *O Page 29 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS AC Programming Specifications Figure 14. AC Waveform SCLK (P1[1]) T FSCLK T RSCLK SDATA (P1[0]) TSSCLK T HSCLK TDSCLK The following table lists the guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 33. AC Programming Specifications Symbol tRSCLK tFSCLK tSSCLK tHSCLK FSCLK tERASEB tWRITE tDSCLK tDSCLK3 tDSCLK2 tXRST3 Description Rise time of SCLK Fall time of SCLK Data setup time to falling edge of SCLK Data hold time from falling edge of SCLK Frequency of SCLK Flash erase time (block) Flash block write time Data out delay from falling edge of SCLK Data out delay from falling edge of SCLK Data out delay from falling edge of SCLK External reset pulse width after power-up Conditions - - - - - - - 3.6 VDD 3.0 VDD 3.6 1.71 VDD 3.0 Required to enter programming mode when coming out of sleep Min 1 1 40 40 0 - - - - - 300 Typ - - - - - - - - - - - Max 20 20 - - 8 18 25 60 85 130 - Units ns ns ns ns MHz ms ms ns ns ns s tXRES tVDDWAIT[46] tVDDXRES[46] tPOLL tACQ[46] XRES pulse length VDD stable to wait-and-poll hold off VDD stable to XRES assertion delay SDATA high pulse time "Key window" time after a VDD ramp acquire event, based on 256 ILO clocks. - - - - - 300 0.1 14.27 0.01 3.20 - - - - - - 1 - 200 19.60 s ms ms ms ms tXRESINI[46] "Key window" time after an XRES event, based on 8 ILO clocks - 98 - 615 s Note 46. Valid from 5 to 50 C. See the spec, CY8C20X66, CY8C20X46, CY8C20X36, CY7C643XX, CY7C604XX, CY8CTST2XX, CY8CTMG2XX, CY8C20X67, CY8C20X47, CY8C20X37, Programming Spec for more details. Document Number: 001-54459 Rev. *O Page 30 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS AC I2C Specifications The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges. Table 34. AC Characteristics of the I2C SDA and SCL Pins Symbol fSCL tHD;STA tLOW tHIGH tSU;STA tHD;DAT tSU;DAT tSU;STO tBUF tSP Description SCL clock frequency Hold time (repeated) START condition. After this period, the first clock pulse is generated LOW period of the SCL clock HIGH Period of the SCL clock Setup time for a repeated START condition Data hold time Data setup time Setup time for STOP condition Bus free time between a STOP and START condition Pulse width of spikes are suppressed by the input filter Standard Mode Min Max 0 100 4.0 - 4.7 4.0 4.7 0 250 4.0 4.7 - - - - 3.45 - - - - Fast Mode Min Max 0 400 0.6 - 1.3 0.6 0.6 0 100[47] 0.6 1.3 0 - - - 0.90 - - - 50 Units kHz s s s s s ns s s ns Figure 15. Definition for Timing for Fast/Standard Mode on the I2C Bus Note 47. A Fast-Mode I2C-bus device can be used in a standard mode I2C-bus system, but the requirement tSU;DAT 250 ns must then be met. This automatically be the case if the device does not stretch the LOW period of the SCL signal. If such device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line trmax + tSU;DAT = 1000 + 250 = 1250 ns (according to the Standard-Mode I2C-bus specification) before the SCL line is released. Document Number: 001-54459 Rev. *O Page 31 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Table 35. SPI Master AC Specifications Min Typ Max Units FSCLK Symbol SCLK clock frequency Description VDD 2.4 V VDD < 2.4 V Conditions - - - - 6 3 MHz MHz DC SCLK duty cycle - - 50 - % tSETUP MISO to SCLK setup time VDD 2.4 V VDD < 2.4 V 60 100 - - - - ns ns tHOLD SCLK to MISO hold time - 40 - - ns tOUT_VAL SCLK to MOSI valid time - - - 40 ns tOUT_H MOSI high time - 40 - - ns Figure 16. SPI Master Mode 0 and 2 SPI Master, modes 0 and 2 1/FSCLK THIGH TLOW SCLK (mode 0) SCLK (mode 2) TSETUP MISO (input) THOLD LSB MSB TOUT_SU TOUT_H MOSI (output) Figure 17. SPI Master Mode 1 and 3 SPI Master, modes 1 and 3 1/FSCLK THIGH TLOW SCLK (mode 1) SCLK (mode 3) TSETUP MISO (input) THOLD TOUT_SU MOSI (output) Document Number: 001-54459 Rev. *O LSB MSB TOUT_H MSB LSB Page 32 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Table 36. SPI Slave AC Specifications Symbol FSCLK tLOW tHIGH tSETUP tHOLD tSS_MISO tSCLK_MISO tSS_HIGH tSS_CLK tCLK_SS Description SCLK clock frequency SCLK low time SCLK high time MOSI to SCLK setup time SCLK to MOSI hold time SS high to MISO valid SCLK to MISO valid SS high time Time from SS low to first SCLK Time from last SCLK to SS high Conditions Min - 42 42 30 50 - - 50 2/SCLK 2/SCLK - - - - - - - - - - Typ - - - - - - - - - - Max 4 - - - - 153 125 - - - Units MHz ns ns ns ns ns ns ns ns ns Figure 18. SPI Slave Mode 0 and 2 SPI Slave, modes 0 and 2 TCLK_SS TSS_CLK TSS_HIGH /SS 1/FSCLK THIGH TLOW SCLK (mode 0) SCLK (mode 2) TOUT_H TSS_MISO MISO (output) TSETUP MOSI (input) THOLD LSB MSB Figure 19. SPI Slave Mode 1 and 3 SPI Slave, modes 1 and 3 TSS_CLK TCLK_SS /SS 1/FSCLK THIGH TLOW SCLK (mode 1) SCLK (mode 3) TOUT_H TSCLK_MISO TSS_MISO MISO (output) MSB TSETUP MOSI (input) Document Number: 001-54459 Rev. *O LSB THOLD MSB LSB Page 33 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Packaging Information This section illustrates the packaging specifications for the CY8C20X36A/46A/66A/96A/46AS/66AS PSoC device, along with the thermal impedances for each package. Important Note Emulation tools may require a larger area on the target PCB than the chip's footprint. For a detailed description of the emulation tools' dimensions, refer to the document titled PSoC Emulator Pod Dimensions at http://www.cypress.com/design/MR10161. Figure 20. 16-pin QFN (No E-Pad) (3 x 3 x 0.6 mm) LG16A (Sawn) Package Outline, 001-09116 001-09116 *F Figure 21. 24-pin QFN (4 x 4 x 0.55 mm) LQ24A 2.65 x 2.65 E-Pad (Sawn) Package Outline, 001-13937 001-13937 *D Document Number: 001-54459 Rev. *O Page 34 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Figure 22. 32-pin QFN (5 x 5 x 0.55 mm) LQ32 3.5 x 3.5 E-Pad (Sawn) Package Outline, 001-42168 001-42168 *D Figure 23. 48-pin SSOP (300 Mils) O483 Package Outline, 51-85061 51-85061 *E Document Number: 001-54459 Rev. *O Page 35 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Figure 24. 48-pin QFN (7 x 7 x 1.0 mm) LT48A 5.1 x 5.1 E-Pad (Sawn) Package Outline, 001-13191 001-13191 *F Figure 25. 48-pin QFN (6 x 6 x 0.6 mm) LQ48A 4.6 x 4.6 E-Pad (Sawn) Package Outline, 001-57280 001-57280 *C Important Notes For information on the preferred dimensions for mounting QFN packages, see the following Application Note at http://www.amkor.com/products/notes_papers/MLFAppNote.pdf. Pinned vias for thermal conduction are not required for the low power PSoC device. Document Number: 001-54459 Rev. *O Page 36 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Thermal Impedances Table 37. Thermal Impedances per Package Typical JA [48] Typical JC 16-pin QFN (No Center Pad) 33 C/W - 24-pin QFN [49] 21 C/W - [49] 20 C/W - 69 C/W - Package 32-pin QFN 48-pin SSOP [49] 25.20 C/W 3.04 C/W 48-pin QFN (7 x 7 x 1.0 mm) [49] 18 C/W - 30-ball WLCSP 54 C/W - 48-pin QFN (6 x 6 x 0.6 mm) Capacitance on Crystal Pins Table 38. Typical Package Capacitance on Crystal Pins Package Package Capacitance 32-pin QFN 3.2 pF 48-pin QFN 3.3 pF Solder Reflow Specifications Table 39 shows the solder reflow temperature limits that must not be exceeded. Table 39. Solder Reflow Specifications Package Maximum Peak Temperature (TC) Maximum Time above TC - 5 C 16-pin QFN 260 C 30 seconds 24-pin QFN 260 C 30 seconds 32-pin QFN 260 C 30 seconds 48-pin SSOP 260 C 30 seconds 48-pin QFN (6 x 6 x 0.6 mm) 260 C 30 seconds 48-pin QFN (7 x 7 x 1.0 mm) 260 C 30 seconds 30-ball WLCSP 260 C 30 seconds Notes 48. TJ = TA + Power x JA. 49. To achieve the thermal impedance specified for the QFN package, the center thermal pad must be soldered to the PCB ground plane. Document Number: 001-54459 Rev. *O Page 37 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Development Tool Selection Software PSoC DesignerTM At the core of the PSoC development software suite is PSoC Designer. Utilized by thousands of PSoC developers, this robust software has been facilitating PSoC designs for over half a decade. PSoC Designer is available free of charge at http://www.cypress.com. PSoC Programmer Flexible enough to be used on the bench in development, yet suitable for factory programming, PSoC Programmer works either as a standalone programming application or it can operate directly from PSoC Designer. PSoC Programmer software is compatible with both PSoC ICE-Cube In-Circuit Emulator and PSoC MiniProg. PSoC Programmer is available free of charge at http://www.cypress.com. Development Kits All development kits are sold at the Cypress Online Store. CY3215-DK Basic Development Kit The CY3215-DK is for prototyping and development with PSoC Designer. This kit supports in-circuit emulation and the software interface enables users to run, halt, and single step the processor and view the content of specific memory locations. PSoC Designer supports the advance emulation features also. The kit includes: 28-pin CY8C29466A-24PXI PDIP PSoC Device Sample 28-pin CY8C27443A-24PXI PDIP PSoC Device Sample PSoC Designer Software CD Getting Started Guide USB 2.0 Cable CY3210-PSoCEval1 The CY3210-PSoCEval1 kit features an evaluation board and the MiniProg1 programming unit. The evaluation board includes an LCD module, potentiometer, LEDs, and plenty of breadboarding space to meet all of your evaluation needs. The kit includes: Evaluation Board with LCD Module MiniProg Programming Unit 28-Pin CY8C29466A-24PXI PDIP PSoC Device Sample (2) PSoC Designer Software CD Getting Started Guide USB 2.0 Cable CY3280-20X66 Universal CapSense Controller The CY3280-20X66 CapSense Controller Kit is designed for easy prototyping and debug of CY8C20XX6A CapSense Family designs with pre-defined control circuitry and plug-in hardware. Programming hardware and an I2C-to-USB bridge are included for tuning and data acquisition. PSoC Designer Software CD The kit includes: ICE-Cube In-Circuit Emulator CY3280-20X66 CapSense Controller Board ICE Flex-Pod for CY8C29X66A Family CY3240-I2USB Bridge Cat-5 Adapter CY3210 MiniProg1 Programmer Mini-Eval Programming Board USB 2.0 Retractable Cable 110 ~ 240 V Power Supply, Euro-Plug Adapter CY3280-20X66 Kit CD iMAGEcraft C Compiler (Registration Required) ISSP Cable USB 2.0 Cable and Blue Cat-5 Cable All device programmers are purchased from the Cypress Online Store. 2 CY8C29466A-24PXI 28-PDIP Chip Samples CY3216 Modular Programmer Evaluation Tools All evaluation tools are sold at the Cypress Online Store. CY3210-MiniProg1 The CY3210-MiniProg1 kit enables the user to program PSoC devices via the MiniProg1 programming unit. The MiniProg is a small, compact prototyping programmer that connects to the PC via a provided USB 2.0 cable. The kit includes: MiniProg Programming Unit MiniEval Socket Programming and Evaluation Board Document Number: 001-54459 Rev. *O Device Programmers The CY3216 Modular Programmer kit features a modular programmer and the MiniProg1 programming unit. The modular programmer includes three programming module cards and supports multiple Cypress products. The kit includes: Modular Programmer Base Three Programming Module Cards MiniProg Programming Unit PSoC Designer Software CD Getting Started Guide USB 2.0 Cable Page 38 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS CY3207ISSP In-System Serial Programmer (ISSP) The CY3207ISSP is a production programmer. It includes protection circuitry and an industrial case that is more robust than the MiniProg in a production programming environment. Note that CY3207ISSP needs special software and is not compatible with PSoC Programmer. The kit includes: CY3207 Programmer Unit PSoC ISSP Software CD 110 ~ 240 V Power Supply, Euro-Plug Adapter USB 2.0 Cable Accessories (Emulation and Programming) Table 40. Emulation and Programming Accessories Part Number Pin Package Flex-Pod Kit[50] Foot Kit[51] Adapter[52] CY8C20236A-24LKXI 16-pin QFN (No E-Pad) CY3250-20246QFN CY3250-20246QFN-POD See note 49 CY8C20246A-24LKXI 16-pin QFN (No E-Pad) CY3250-20246QFN CY3250-20246QFN-POD See note 52 CY8C20246AS-24LKXI 16-pin QFN (No E-Pad) CY8C20336A-24LQXI 24-pin QFN CY3250-20346QFN CY3250-20346QFN-POD See note 49 CY8C20346A-24LQXI 24-pin QFN CY3250-20346QFN CY3250-20346QFN-POD See note 52 CY8C20346AS-24LQXI 24-pin QFN Not Supported Not Supported CY8C20396A-24LQXI 24-pin QFN CY8C20436A-24LQXI 32-pin QFN CY3250-20466QFN CY3250-20466QFN-POD Not Supported See note 49 CY8C20446A-24LQXI 32-pin QFN CY3250-20466QFN CY3250-20466QFN-POD See note 52 CY8C20446AS-24LQXI 32-pin QFN Not Supported CY8C20466A-24LQXI 32-pin QFN CY8C20466AS-24LQXI 32-pin QFN CY3250-20466QFN CY3250-20466QFN-POD See note 52 CY8C20496A-24LQXI 32-pin QFN CY8C20536A-24PVXI 48-pin SSOP CY3250-20566 CY3250-20566-POD See note 52 CY8C20546A-24PVXI 48-pin SSOP CY3250-20566 CY3250-20566-POD See note 52 CY8C20566A-24PVXI 48-pin SSOP CY3250-20566 CY3250-20566-POD See note 52 Not Supported Not Supported Third Party Tools Several tools have been specially designed by third-party vendors to accompany PSoC devices during development and production. Specific details for each of these tools can be found at http://www.cypress.com under Documentation > Evaluation Boards. Build a PSoC Emulator into Your Board For details on how to emulate your circuit before going to volume production using an on-chip debug (OCD) non-production PSoC device, refer Application Note Debugging - Build a PSoC Emulator into Your Board - AN2323. Notes 50. Flex-Pod kit includes a practice flex-pod and a practice PCB, in addition to two flex-pods. 51. Foot kit includes surface mount feet that can be soldered to the target PCB. 52. Programming adapter converts non-DIP package to DIP footprint. Specific details and ordering information for each of the adapters can be found at http://www.emulation.com. Document Number: 001-54459 Rev. *O Page 39 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Ordering Information The following table lists the CY8C20X36A/46A/66A/96A/46AS/66AS PSoC devices' key package features and ordering codes. Table 41. PSoC Device Key Features and Ordering Information Package Ordering Code Flash SRAM CapSense Digital Analog XRES USB ADC (Bytes) (Bytes) Blocks I/O Pins Inputs [53] Pin 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad) CY8C20236A-24LKXI 8K 1K 1 13 13 Yes No Yes 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad) (Tape and Reel) CY8C20236A-24LKXIT 8K 1K 1 13 13 Yes No Yes 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad) CY8C20246A-24LKXI 16 K 2K 1 13 13 Yes No Yes 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad) CY8C20246AS-24LKXI 16 K 2K 1 13 13 Yes No Yes 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad) (Tape and Reel) CY8C20246A-24LKXIT 16 K 2K 1 13 13 Yes No Yes 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad) (Tape and Reel) CY8C20246AS-24LKXIT 16 K 2K 1 13 13 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN CY8C20336A-24LQXI 8K 1K 1 20 20 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN (Tape and Reel) CY8C20336A-24LQXIT 8K 1K 1 20 20 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN CY8C20346A-24LQXI 16 K 2K 1 20 20 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN CY8C20346AS-24LQXI 16 K 2K 1 20 20 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN (Tape and Reel) CY8C20346A-24LQXIT 16 K 2K 1 20 20 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN (Tape and Reel) CY8C20346AS-24LQXIT 16 K 2K 1 20 20 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN CY8C20396A-24LQXI 16 K 2K 1 19 19 Yes Yes Yes 24-pin (4 x 4 x 0.6 mm) QFN (Tape and Reel) CY8C20396A-24LQXIT 16 K 2K 1 19 19 Yes Yes Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20436A-24LQXI 8K 1K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20436A-24LQXIT 8K 1K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20446A-24LQXI 16 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20446AS-24LQXI 16 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20446A-24LQXIT 16 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20446AS-24LQXIT 16 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20466A-24LQXI 32 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20466AS-24LQXI 32 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20466A-24LQXIT 32 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20466AS-24LQXIT 32 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20496A-24LQXI 16 K 2K 1 25 25 Yes Yes Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20496A-24LQXIT 16 K 2K 1 25 25 Yes Yes Yes Document Number: 001-54459 Rev. *O Page 40 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Table 41. PSoC Device Key Features and Ordering Information (continued) Package 48-pin SSOP [54] CY8C20536A-24PVXI [54] 48-pin SSOP (Tape and Reel) [54] 48-pin SSOP [54] [54] [54] CY8C20536A-24PVXIT CY8C20546A-24PVXI 48-pin SSOP (Tape and Reel) [54] 48-pin SSOP Flash SRAM CapSense Digital Analog XRES USB ADC (Bytes) (Bytes) Blocks I/O Pins Inputs [53] Pin Ordering Code [54] [54] CY8C20546A-24PVXIT CY8C20566A-24PVXI [54] [54] 8K 1K 1 34 34 Yes No Yes 8K 1K 1 34 34 Yes No Yes 16 K 2K 1 34 34 Yes No Yes 16 K 2K 1 34 34 Yes No Yes 32 K 2K 1 34 34 Yes No Yes 32 K 2K 1 34 34 Yes No Yes 48-pin SSOP (Tape and Reel) [54] CY8C20566A-24PVXIT 48-pin (6 x 6 x 0.6 mm) QFN CY8C20636A-24LQXI 8K 1K 1 36 36 Yes No Yes 48-pin (6 x 6 x 0.6 mm) QFN (Tape and Reel) CY8C20636A-24LQXIT 8K 1K 1 36 36 Yes No Yes 8K 1K 1 36 36 Yes No Yes 8K 1K 1 36 36 Yes No Yes 48-pin (7 x 7 x 1.0 mm) QFN [54] CY8C20636A-24LTXI [54] [54] 48-pin (7 x 7 x 1.0 mm) QFN (Tape and Reel) [54] CY8C20636A-24LTXIT 48-pin (6 x 6 x 0.6 mm) QFN CY8C20646A-24LQXI 16 K 2K 1 36 36 Yes Yes Yes 48-pin (6 x 6 x 0.6 mm) QFN (Tape and Reel) CY8C20646A-24LQXIT 16 K 2K 1 36 36 Yes Yes Yes 16 K 2K 1 36 36 Yes Yes Yes 16 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN [54] CY8C20646A-24LTXI [54] [54] 48-pin (7 x 7 x 1.0 mm) QFN (Tape and Reel) [54] CY8C20646A-24LTXIT 48-pin (6 x 6 x 0.6 mm) QFN CY8C20666A-24LQXI 32 K 2K 1 36 36 Yes Yes Yes 48-pin (6 x 6 x 0.6 mm) QFN (Tape and Reel) CY8C20666A-24LQXIT 32 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN [54] CY8C20666A-24LTXI [54] 32 K 2K 1 36 36 Yes Yes Yes CY8C20666AS-24LTXI [54] 32 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN (Tape and Reel) [54] CY8C20666A-24LTXIT [54] 32 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN (Tape and Reel) [54] CY8C20666AS-24LTXIT [54] 32 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN (OCD) [53] CY8C20066A-24LTXI [53] 32 K 2K 1 36 36 Yes Yes Yes 30-ball WLCSP CY8C20746A-24FDXC 16 K 1K 1 27 27 Yes No Yes 30-ball WLCSP (Tape and Reel) CY8C20746A-24FDXCT 16 K 1K 1 27 27 Yes No Yes 30-ball WLCSP 32 K 2K 1 27 27 Yes No Yes 30-ball WLCSP (Tape and Reel) CY8C20766A-24FDXCT 32 K 2K 1 27 27 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN CY8C20336AN-24LQXI 8K 1K 1 20 20 Yes No No 24-pin (4 x 4 x 0.6 mm) QFN (Tape and Reel) CY8C20336AN-24LQXIT 8K 1K 1 20 20 Yes No No 32-pin (5 x 5 x 0.6 mm) QFN CY8C20436AN-24LQXI 8K 1K 1 28 28 Yes No No 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20436AN-24LQXIT 8K 1K 1 28 28 Yes No No 8K 1K 1 36 36 Yes No No 8K 1K 1 36 36 Yes No No 48-pin (7 x 7 x 1.0 mm) QFN [54] CY8C20766A-24FDXC 48-pin (7 x 7 x 1.0 mm) QFN [54] CY8C20636AN-24LTXI [54] 48-pin (7 x 7 x 1.0 mm) QFN (Tape and Reel) [54] CY8C20636AN-24LTXIT Document Number: 001-54459 Rev. *O [54] Page 41 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Table 41. PSoC Device Key Features and Ordering Information (continued) Package Flash SRAM CapSense Digital Analog XRES USB ADC (Bytes) (Bytes) Blocks I/O Pins Inputs [53] Pin Ordering Code 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad) CY8C20246AS-24LKXI 16 K 2K 1 13 13 Yes No Yes 16-pin (3 x 3 x 0.6 mm) QFN (no E-Pad, Tape and Reel) CY8C20246AS-24LKXIT 16 K 2K 1 13 13 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN CY8C20346AS-24LQXI 16 K 2K 1 20 20 Yes No Yes 24-pin (4 x 4 x 0.6 mm) QFN (Tape and Reel) CY8C20346AS-24LQXIT 16 K 2K 1 20 20 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20446AS-24LQXI 16 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20446AS-24LQXIT 16 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN CY8C20466AS-24LQXI 32 K 2K 1 28 28 Yes No Yes 32-pin (5 x 5 x 0.6 mm) QFN (Tape and Reel) CY8C20466AS-24LQXIT 32 K 2K 1 28 28 Yes No Yes 48-pin (6 x 6 x 0.6 mm) QFN CY8C20666AS-24LQXI 32 K 2K 1 36 36 Yes Yes Yes 48-pin (6 x 6 x 0.6 mm) QFN (Tape and Reel) CY8C20666AS-24LQXIT 32 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN [54] CY8C20666AS-24LTXI [54] 32 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN (Tape and Reel) [54] CY8C20666AS-24LTXIT [54] 32 K 2K 1 36 36 Yes Yes Yes 48-pin (6 x 6 x 0.6 mm) QFN CY8C20646AS-24LQXI 16 K 2K 1 36 36 Yes Yes Yes 48-pin (6 x 6 x 0.6 mm) QFN (Tape and Reel) CY8C20646AS-24LQXIT 16 K 2K 1 36 36 Yes Yes Yes 16 K 2K 1 36 36 Yes Yes Yes 16 K 2K 1 36 36 Yes Yes Yes 48-pin (7 x 7 x 1.0 mm) QFN [54] CY8C20646AS-24LTXI [54] 48-pin (7 x 7 x 1.0 mm) QFN (Tape and Reel) [54] CY8C20646AS-24LTXIT [54] Ordering Code Definitions CY 8 C 20 XX6AX - 24 XX X X T Tape and Reel Temperature range: X = C or I C = Commercial; I = Industrial Pb-free Package Type: XX = LK or LQ or PV or LT or FD LK = 16-pin QFN (no E-Pad) LQ = 24-pin QFN, 32-pin QFN, 48-pin (6 x 6 x 0.6 mm) QFN PV = 48-pin SSOP LT = 48-pin (7 x 7 x 1.0 mm) QFN FD = 30-ball WLCSP Speed Grade: 24 MHz Part Number Family Code Technology Code: C = CMOS Marketing Code: 8 = PSoC Company ID: CY = Cypress Notes 53. Dual-function Digital I/O Pins also connect to the common analog mux. 54. Not Recommended for New Designs. Document Number: 001-54459 Rev. *O Page 42 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Acronyms Reference Documents Table 42. Acronyms Used in this Document Acronym Description AC alternating current ADC analog-to-digital converter API application programming interface CMOS complementary metal oxide semiconductor CPU central processing unit DAC digital-to-analog converter DC direct current EOP end of packet FSR full scale range GPIO general purpose input/output GUI graphical user interface I 2C inter-integrated circuit ICE in-circuit emulator IDAC digital analog converter current ILO internal low speed oscillator IMO internal main oscillator I/O input/output ISSP in-system serial programming LCD liquid crystal display LDO low dropout (regulator) LSB least-significant bit LVD low voltage detect MCU micro-controller unit MIPS mega instructions per second MISO master in slave out MOSI master out slave in MSB most-significant bit OCD on-chip debugger POR power on reset PPOR precision power on reset PSRR power supply rejection ratio PWRSYS power system PSoC(R) Programmable System-on-Chip SLIMO slow internal main oscillator SRAM static random access memory SNR signal to noise ratio QFN quad flat no-lead SCL serial I2C clock SDA serial I2C data SDATA serial ISSP data SPI serial peripheral interface SS slave select SSOP shrink small outline package TC test controller USB universal serial bus USB D+ USB Data+ USB D- USB Data- WLCSP wafer level chip scale package XTAL crystal Technical reference manual for CY8C20xx6 devices In-system Serial Programming (ISSP) protocol for 20xx6 (AN2026C) Host Sourced Serial Programming for 20xx6 devices (AN59389) Document Number: 001-54459 Rev. *O Document Conventions Units of Measure Table 43. Units of Measure Symbol C dB fF g Hz KB Kbit KHz Ksps k MHz M A F H s W mA ms mV nA nF ns nV W pA pF pp ppm ps sps s V W Unit of Measure degree Celsius decibels femtofarad gram hertz 1024 bytes 1024 bits kilohertz kilo samples per second kilohm megahertz megaohm microampere microfarad microhenry microsecond microwatt milliampere millisecond millivolt nanoampere nanofarad nanosecond nanovolt ohm picoampere picofarad peak-to-peak parts per million picosecond samples per second sigma: one standard deviation volt watt Page 43 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Numeric Naming Hexadecimal numbers are represented with all letters in uppercase with an appended lowercase `h' (for example, `14h' or `3Ah'). Hexadecimal numbers may also be represented by a `0x' prefix, the C coding convention. Binary numbers have an appended lowercase `b' (for example, 01010100b' or `01000011b'). Numbers not indicated by an `h', `b', or 0x are decimal. Glossary Crosspoint connection Connection between any GPIO combination via analog multiplexer bus. Differential non-linearity Ideally, any two adjacent digital codes correspond to output analog voltages that are exactly one LSB apart. Differential non-linearity is a measure of the worst case deviation from the ideal 1 LSB step. Hold time Hold time is the time following a clock event during which the data input to a latch or flip-flop must remain stable in order to guarantee that the latched data is correct. I2C It is a serial multi-master bus used to connect low speed peripherals to MCU. Integral nonlinearity It is a term describing the maximum deviation between the ideal output of a DAC/ADC and the actual output level. Latch-up current Current at which the latch-up test is conducted according to JESD78 standard (at 125 degree Celsius) Power supply rejection ratio (PSRR) The PSRR is defined as the ratio of the change in supply voltage to the corresponding change in output voltage of the device. Scan The conversion of all sensor capacitances to digital values. Setup time Period required to prepare a device, machine, process, or system for it to be ready to function. Signal-to-noise ratio The ratio between a capacitive finger signal and system noise. SPI Serial peripheral interface is a synchronous serial data link standard. Document Number: 001-54459 Rev. *O Page 44 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Document History Page Document Title: CY8C20X36A/46A/66A/96A/46AS/66AS, 1.8 V CapSense(R) Controller with SmartSenseTM Auto-tuning Document Number: 001-54459 Rev. ECN Orig. of Change Submission Date Description of Change ** 2737924 SNV 07/14/09 *A 2764528 MATT 09/16/2009 *B 2803229 VZD 11/10/09 *C 2846083 DST / KEJO 01/12/2010 Updated AC Programming Specifications on page 30 per CDT 56531. Updated Idd typical values in DC Chip-Level Specifications on page 20. Added 30-pin WLCSP pin and package details. Added Contents on page 2. *D 2935141 KEJO / ISW / SSHH 03/05/2010 Updated Features on page 1. Added SmartSense on page 4. Updated PSoC(R) Functional Overview on page 4. Removed SNR statement regarding on page 4 (Analog Multiplexer section). Updated on page 7 with the I2C enhanced slave interface point. Removed references to "system level" in Designing with PSoC Designer on page 8. Changed TC CLK and TC DATA to ISSP CLK and ISSP DATA respectively in all the pinouts. Modified notes in Pinouts. Updated 30-ball pin diagram. Removed IMO frequency trim options diagram in Electrical Specifications on page 19. Updated and formatted values in DC and AC specifications. Updated Ordering information table. Updated 48-pin SSOP package diagram. Added 30-Ball WLCSP package spec 001-50669. Removed AC Analog Mux Bus Specifications section. Added SPI Master and Slave mode diagrams. Modified Definition for Timing for Fast/Standard Mode on the I2C Bus on page 28. Updated Thermal Impedances on page 37. Combined Development Tools with Development Tool Selection on page 38. Removed references to "system level". Updated Evaluation Tools on page 38. Added Ordering Code Definitions on page 42. Updated Acronyms on page 43. Added Glossary and Reference Documents on page 43. Changed datasheet status from Preliminary to Final *E 3043291 SAAC 09/30/10 Change: Added the line "Supports SmartSense" in the "Low power CapSense(R) block" bullet in the Features section. Impact: Helps to know that this part has the feature of Auto Tuning. Change: Replaced pod MPNs. Areas affected: Foot kit column of table 37. Change: Template and Styles update. Areas affected: Entire datasheet. Impact: Datasheet adheres to Cypress standards. *F 3071632 JPX 10/26/10 In Table 36 on page 33, modified tLOW and tHIGH min values to 42. Updated tSS_HIGH min value to 50; removed max value. Document Number: 001-54459 Rev. *O New silicon and document Updated AC Chip Level Specifications Updated ADC User Module Electrical Specifications table Added Note 5. Added SRPOWER_UP parameter. Updated Ordering information. Updated Capacitance on Crystal Pins Added Contents on page 3. Added Note 6 on page 20. Edited Features section to include reference to Incremental ADC. Page 45 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Document History Page (continued) Document Title: CY8C20X36A/46A/66A/96A/46AS/66AS, 1.8 V CapSense(R) Controller with SmartSenseTM Auto-tuning Document Number: 001-54459 Rev. ECN Orig. of Change Submission Date Description of Change *G 3247491 TTO / JPM / ARVM / BVI 06/16/11 Add 4 new parameters to Table 14 on page 21, and 2 new parameters to Table 15 on page 22. Changed Typ values for the following parameters: IDD24, IDD12, IDD6, VOSLPC. Added footnote # 31 and referred it to pin numbers 1, 14, 15, 42, and 43 under Table 10 on page 18. Added footnote # 34 and referred it to parameter VIOZ under Table 11 on page 19. Added "tJIT_IMO" parameter to Table 27 on page 27. Included footnote # 44 and added reference to tJIT_IMO specification under Table 27 on page 27. Updated Solder Reflow Specifications on page 37 as per specs 25-00090 and 25-00103. ISB0 Max value changed from 0.5 A to 1.1 A in Table 13 on page 20. Added Table 26 on page 26. Updated part numbers for "SmartSense_EMC" enabled CapSense controller. *H 3367332 BTK / SSHH / JPM / TTO / VMAD 09/09/11 Added parameter "tOS" to Table 27 on page 27. Added parameter "ISBI2C" to Table 13 on page 20. Added Table 24 on page 26. Added Table 25 on page 26. Replaced text "Port 2 or 3 pins" with "Port 2 or 3 or 4 pins" in Table 14, Table 15, Table 16, and Table 28. *I 3371807 MATT 09/30/2011 Updated Packaging Information (Updated the next revision package outline for Figure 20, Figure 23 and included a new package outline Figure 25). Updated Ordering Information (Added new part numbers CY8C20636A-24LQXI, CY8C20636A-24LQXIT, CY8C20646A-24LQXI, CY8C20646A-24LQXIT, CY8C20666A-24LQXI, CY8C20666A-24LQXIT, CY8C20666AS-24LQXI, CY8C20666AS-24LQXIT, CY8C20646AS-24LQXI and CY8C20646AS-24LQXIT). Updated in new template. *J 3401666 MATT 10/11/2011 No technical updates. *K 3414479 KPOL 10/19/2011 Removed clock stretching feature on page 1. Removed I2C enhanced slave interface point from Additional System Resources. *L 3452591 BVI / UDYG 12/01/2011 Changed document title. Updated DC Chip-Level Specifications table. Updated Solder Reflow Specifications section. Updated Getting Started and Designing with PSoC Designer sections. Included Development Tools section. Updated Software under Development Tool Selection section. *M 3473330 ANBA 12/22/2011 Updated DC Chip-Level Specifications under Electrical Specifications (updated maximum value of ISB0 parameter from 1.1 A to 1.05 A). *N 3587003 DST 04/16/2012 Added note for WLCSP package on page 1. Added Sensing inputs to pin table captions. Updated Conditions for DC Reference Buffer Specifications. Updated tJIT_IMO description in AC Chip-Level Specifications. Added note for tVDDWAIT, tVDDXRES, tACQ, and tXRESINI specs. Removed WLCSP package outline. *O 3638569 BVI 06/06/2012 Updated FSCLK parameter in the Table 36, "SPI Slave AC Specifications," on page 33. Changed tOUT_HIGH to tOUT_H in Table 35, "SPI Master AC Specifications," on page 32. Updated package diagram 001-57280 to *C revision. Document Number: 001-54459 Rev. *O Page 46 of 47 CY8C20X36A/46A/66A/96A/46AS/66AS Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer's representatives, and distributors. To find the office closest to you, visit us at Cypress Locations. Products Automotive cypress.com/go/automotive Clocks & Buffers Interface Lighting & Power Control PSoC Solutions cypress.com/go/clocks psoc.cypress.com/solutions cypress.com/go/interface PSoC 1 | PSoC 3 | PSoC 5 cypress.com/go/powerpsoc cypress.com/go/plc Memory cypress.com/go/memory Optical & Image Sensing cypress.com/go/image PSoC cypress.com/go/psoc Touch Sensing cypress.com/go/touch USB Controllers cypress.com/go/USB Wireless/RF cypress.com/go/wireless (c) Cypress Semiconductor Corporation, 2009-2012. The information contained herein is subject to change without notice. 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Document Number: 001-54459 Rev. *O (R) Revised June 15, 2012 (R) Page 47 of 47 PSoC DesignerTM is a trademark and PSoC and CapSense are registered trademarks of Cypress Semiconductor Corporation. Purchase of I2C components from Cypress or one of its sublicensed Associated Companies conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors. All products and company names mentioned in this document may be the trademarks of their respective holders.