Freescale Semiconductor, Inc. User's Guide Document Number: KTRD9Z1-638-12VUG Rev. 1.0, 4/2014 RD9Z1-638-12V Reference Design Intelligent 12 V Lead-acid Battery Management with LIN Interface Figure 1. RD9Z1-638-12V Reference Design Contents 1 Kit Contents/Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Jump Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 Important Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 Reference Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 Device Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7 Accessory Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8 Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 Reference Design Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 10 Setting Up and Using the Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 11 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 12 Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 13 Bill of Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 14 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 15 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 (c) Freescale Semiconductor, Inc., 2014. All rights reserved. Kit Contents/Packing List 1 Kit Contents/Packing List * * 2 Assembled and tested 100 shunt mounted to the board in an anti-static bag Warranty card Jump Start * * * * Go to www.freescale.com/analogtools Locate your kit Review your Tool Summary Page Look for Jump Start Your Design * Download documents, software, and other information KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 2 Important Notice 3 Important Notice Freescale provides the enclosed product(s) under the following conditions: This reference design is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals. This reference design may be used with any development system or other source of I/O signals by simply connecting it to the host MCU or computer board via off-the-shelf cables. Final device in an application will be heavily dependent on proper printed circuit board layout and heat sinking design as well as attention to supply filtering, transient suppression, and I/O signal quality. The goods provided may not be complete in terms of required design, marketing, and or manufacturing related protective considerations, including product safety measures typically found in the end product incorporating the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. In order to minimize risks associated with the customers applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. For any safety concerns, contact Freescale sales and technical support services. Should this reference design not meet the specifications indicated in the kit, it may be returned within 30 days from the date of delivery and will be replaced by a new kit. Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typical", must be validated for each customer application by customer's technical experts. Freescale does not convey any license under its patent rights nor the rights of others. Freescale products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale product could create a situation where personal injury or death may occur. Should the Buyer purchase or use Freescale products for any such unintended or unauthorized application, the Buyer shall indemnify and hold Freescale and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale was negligent regarding the design or manufacture of the part.FreescaleTM and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. (c) Freescale Semiconductor, Inc. 2014 KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Introduction 4 Introduction The RD9Z1-638-12V reference design is a Battery Management System (BMS) for 12 V lead-acid battery applications and features the MM9Z1J638 Battery Sensor Module. The RD9Z1-638-12V is built to demonstrate the product capabilities in a 12 V lead-acid application where high EMC performance is required to obtain high accuracy measurements on key battery parameters. 5 Reference Design Features The RD9Z1-638-12V reference design features are as follows: * * * * * * * * Embedded MCU: 16-bit S12Z MCU Embedded power management Battery voltage sensing input (VSENSE2) Internal temperature sensing Embedded NTC for temperature sensing (PTB4) Battery current sensing via mounted shunt (ISENSE) LIN 2.2/2.1/2.0 interface BDM interface (For MCU programming and debugging) KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 4 Device Features 6 Device Features 6.1 MM9Z1_638 Device Features The MM9Z1_638 is a fully integrated BMS. The device supports precise current measurement via an external shunt resistor. It features four voltage measurements via an internal calibrated resistor divider or use of an external divider. It includes an internal temperature sensor, allowing close proximity battery temperature measurements, plus four external temperature sensor inputs. The MM9Z1_638 integrates a S12Z microcontroller and a SMARTMOS analog control IC into a single package solution. * * * * * * * * * * 6.2 Wide range battery current measurement; On-chip temperature measurement Four battery voltage measurements with internal resistor dividers, and up to five direct voltage measurements for use with an external resistor divider Measurement synchronization between voltage channels and current channels Five external temperature sensor inputs with internal supply for external sensors Low-power modes with low-current operation Multiple wake-up sources: LIN, timer, high-voltage input, external CAN interface, and current threshold and integration Precision internal oscillator and connections for external crystal LIN 2.2/2.1/2.0 protocol and physical interface msCAN protocol controller, and supply capability for 8 and 14-pin CAN interfaces MM9Z1_638: S12Z microcontroller with 128 kByte Flash, 8.0 kByte RAM, 4.0 kByte EEPROM S12Z MCU The MM9Z1J638 enables precision measurement of key battery parameters in automotive, industrial and other applications. The device integrates a S12Z microcontroller and a SMARTMOS analog control IC into a single package solution. The analog die combines system basis and application specific functions, including 3 dedicated 16-bit sigma delta analog to digital converters (ADC) for synchronous measurement of battery voltage, current, and temperature. The Embedded MCU includes these features: * * * * * * * * * * * * S12Z CPU core (S12ZCPU) 128 KB on-chip flash with ECC 4.0 KB on-chip EEPROM with ECC 8.0 KB on-chip SRAM with ECC Phase locked loop (IPLL) frequency multiplier with internal filter 4.0 - 16 MHz amplitude controlled Pierce oscillator 1.024 MHz internal RC oscillator 50 MHz bus frequency One CAN module (msCAN) One serial peripheral interface (SPI) module On-chip voltage regulator (VREG) for regulation of input supply and all internal voltages Die to Die Initiator (D2DI) KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Accessory Interface Board 7 Accessory Interface Board The RD9Z1-638-12V reference design may be used with the P&E's USB BDM Multilink (shown below), which provides a USB-to-BDM interface. This accessory will be needed to flash the MCU using Freescale CodeWarrior 10.4 or higher. See USB BDM Multilink. Figure 2. P&E's USB BDM Multilink 8 Required Equipment Minimum required equipment: * * * * 12 V DC Power supply USB-enabled PC with Windows XP or higher P&E's USB BDM Multilink Freescale CodeWarrior 10.4 or higher The following additional equipment is needed to fully use this reference design. * * * * * * 12 V Lead-Acid battery Battery load or current source Shunt-compatible power cable and plugs (screws + nuts) LIN bus Master Oscilloscope (preferably 4-channel) Digital voltmeter and ammeter Having all of these items will allow testing and debugging of the system. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 6 Reference Design Configuration 9 Reference Design Configuration P&E's USB BDM Multilink Freescale CodeWarrior 10.4 10 shunt 4 CHASSIS 1 2 BATT - 3 5 Load current 6 Load current 7 BATTERY + 9 BATTERY - 8 Load 12V Lead-Acid Battery Figure 3. RD9Z1-638-12V Board with Battery Configuration In Figure 3, current goes from battery positive through the load, into the ground (chassis), through the shunt (where it creates voltage measured by the MM9Z1_638) and goes back to the battery minus. Figure 3 shows key component and connector locations. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Reference Design Configuration The following table is a description of the numbers listed on Figure 3. Table 1. Key Component and Connector Locations Item Description Note 2 3 100 shunt for current measurement, providing ground terminal (CHASSIS) and battery minus pole terminal (BATT-) BDM Connector (BDM1), add 470 nF between RESET and GND signal for programming only Freescale MM9Z1J638 Battery Sensor (U1) 4 Battery positive pole input pad (BATT+), reverse protected by D1 diode 5 LIN pad 6 GND pad 7 8 9 Embedded NTC thermistor (R6). Provide close-to-battery temperature measurement 12 V Lead-Acid Battery External battery load (for current measurement). A current source can also be used 1 (1) (2) Notes 1. 2. If no battery is available, connect a 12 V power supply to BATT+, see Figure 4 and Figure 5. If the shunt CHASSIS terminal is not used, connect the power supply ground to GND pad. The board is protected against reverse battery voltage by diode D1. This diode can withstand up to 350 mA continuous forward current. 9.1 Setup with DC Power Supply (CHASSIS) This setup is optional and used when no battery is available. In this case, the board is powered by a 12 V DC Power supply. 100 shunt Figure 4. Setup with DC Power Supply (CHASSIS) Note: In this setup, only the load current will be measured by the IC. To include the board consumption current in this setup, connect the power supply negative terminal (-) to the BATT- shunt terminal instead. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 8 Reference Design Configuration 9.2 Setup with DC Power Supply (GND Pad) This setup is optional and used when no battery is available. In this case, the board is powered by a 12 V DC Power supply. Figure 5. Setup with DC Power Supply (GND Pad) Note: In this setup, only the load current will be measured by the IC. To include the board consumption current in this setup, connect the power supply negative terminal (-) to the BATT- shunt terminal instead. Note: Connecting power ground to the GND pad will provide the same board functionality as connecting it to the CHASSIS terminal. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Setting Up and Using the Hardware and Software 10 Setting Up and Using the Hardware and Software In order to perform the demonstration examples, first set up the board hardware and software as follows: 1. Download CodeWarrior 10.4 or higher and the example software using the instructions in the "Jump Start" section. 2. Install CodeWarrior Suite on a USB-enabled PC running Windows XP or higher. 3. Connect a 470 nF capacitor between RESET and GND signal on the adapter side. 4. Connect the BDM cable from the P&E's adapter (or equivalent) to the BDM1 connector on the board with ribbon cable coming from left side of the board. 5. Connect the battery minus pole (-) or the ground line from the supply to the BATT- terminal on the shunt. Note: If the shunt CHASSIS terminal is not used, connect the power supply ground to GND pad. 6. Connect the battery positive pole (+) or the positive voltage output (set at +12 V) of the DC power supply to the BATT+ terminal on the board. 7. Place the project example folder obtained in step 1 into the CodeWarrior Suite workspace folder. By default the folder is located at C:\Users\YOUR_USER_NAME\workspace. 8. Launch the CodeWarrior Suite. a. Go to File>Import in the CodeWarrior Suite. Choose Existing Project into Workspace, click Next. b. Select "select root directory". Click Browse and locate the workspace folder. The Project starts loading. c. Select the Example Software in the Projects section and select Copy Project Into Workspace. Click Finish. d. An example project is ready to be used. It is located in the "CodeWarrior Projects" window, on the left. e. Go to the Project tab and click Build All to compile the project. f. Go to the Run tab and select Run. To debug the MCU, select Debug instead of Run. Once the steps above are all accomplished, go to Jump Start Your Design at freescale.com to download the RD9Z1-638-12V_APPSP.zip file. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 10 Setting Up and Using the Hardware and Software 10.1 Hardware Description This reference design features one MM9Z1J638 (Battery Sensor) IC. Below is a board-level logic diagram. + BATT + Pad GND Pad 12 V Battery VSUP CHASSIS QZ1 Battery Sensor Shunt 100 BATT - ISENSEH ISENSEL VDDX BKGD RESET Current sense Internal temperature sense BDM1 Connector GND External temperature sense Voltage sense PTB4 VSENSE2 Embedded NTC BATT+ S12Z MCU LIN Physical Layer LIN LIN Pad MM9Z1J638 Figure 6. RD9Z1-638-12V Block Diagram 10.2 Shunt The soldered shunt is used for current measurement. The system ground should be connected to the CHASSIS terminal and the battery minus pole to the BATT- terminal. This setup is a low-side current measurement. Therefore, the system ground (GND) is the CHASSIS terminal and should be used as the reference. This setup permits measurement of both load and board current. This insures accurate current measurement at any time. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Setting Up and Using the Hardware and Software 10.3 Voltage and Current Measurement The MM9Z1J638 has four voltage measurement channels called VSENSE. For sensing the battery voltage, the VSENSE2 pin is used and protected against ESD by a 2.2 k serial resistor. Measurement results are referenced to GND. A software calculation is needed to know the battery voltage. The software has to include the voltage drop of the shunt (ie.ISENSE differential voltage) to get the correct battery voltage. In this case, the current acquisition must be ON when voltage acquisition is ON. When using the MM9Z1J638 in a low side current sensing setup, the actual voltage for the battery is: VB = VSENSE2 + VSHUNT Where VSHUNT = Load current x100 = -VDROP And where VDROP = ISENSEH - ISENSEL If current is positive (or VDROP < 0), the data returned into ACQ_CURR (current acquisition register) will be negative. If current is negative (or VDROP > 0), the data returned into ACQ_CURR (current acquisition register) will be positive. VSENSE2 B SHUNT DROP Figure 7. RD9Z1-638-12V Low-side Current Sensing KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 12 Setting Up and Using the Hardware and Software This reference design provides a very high EMC tolerant current sensing circuit thanks to symmetrical layout traces along with a dual balanced capacitor (C2) improving differential and common attenuation. Figure 8. Current Sensing Circuit 10.4 LIN Interface This reference design provides a LIN 2.2/ 2.1/ 2.0 protocol and physical interface. This LIN interface has a high robustness against EM disturbances, ESD and has a very low EM emission level. An ESD diode (D2) can be added to further improve performances. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Setting Up and Using the Hardware and Software 10.5 Embedded Temperature Sensing This reference design provides temperature sensing embedded on the PCB. The thermistor is located above a thermal convection point. Thanks to the low thermal resistance of the shunt and PCB pads, this design gives the user an approximate reading of battery temperature without the need of any additional external components. Figure 9. Embedded Temperature Sensing 10.6 BDM1 Connector BDM1 should be connected to P&E's USB BDM Multilink adapter (or equivalent) in order to enable programming and debugging the MM9Z1J638 with the Freescale CodeWarrior Suite. For programming the MM9Z1J638, connect a 470 nF capacitor between RESET and GND signal on the adapter side. It is due to the RESET pin being connected to the RESET_A pin with the analog watchdog enabled. The programming capacitor shall be removed after programming. BKGD GND NC RESET NC VDDX Figure 10. BDM1 Connector Note: The VDDX Maximum load current available for external supply, with VSUP > 5.5 V and for all external loads is 100 mA. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 14 Setting Up and Using the Hardware and Software 10.7 BATT+, LIN and GND Pads The BATT+ pad should be connected to the battery positive (+) terminal in order to power the board. An 18 or 16 gauge wire should be used and soldered directly on the pad footprint. This insures enough flexibility over the application constraints. The LIN pad should be connected to a LIN bus, if any. The GND pad is an optional connection path for ground, in case the shunt is not connected to the chassis. Preferably, the "CHASSIS" side on the shunt should be used for grounding. Figure 11. BATT+, LIN and GND Pads KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Schematic 11 Schematic KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 16 Board Layout 12 Board Layout 12.1 Assembly Layer Top KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Board Layout 12.2 Top Layer Routing KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 18 Board Layout 12.3 Layer 2 Routing KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Board Layout 12.4 Layer 3 Routing KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 20 Board Layout 12.5 Bottom Layer Routing Note: This image is an exception to the standard top-view mode of representation used in this document. It has been flipped to show a bottom view. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. Bill of Materials 13 Bill of Materials Table 2. Bill of Materials (1) Qty Schematic Label Value Description Package Assy Opt Integrated Circuit 1 QZ1 N/A Freescale MM9Z1J638BM2EP 48-PIN QFN (3) Diodes 1 D1 N/A ZHCS350 350 mA SOD-523 - 55 C to + 125 C AEC-Q101 ROHS Lead-Free SOD-523 1 D2 DNP MMBZ27VCLT1 recommended SOT-23 SM0603 Capacitors 1 C1 1 uF GCM188R71C105KA64 16 V 10 % X7R 0603 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free 1 U1 1 nF 500X07W102MV4T X2Ycap-0402-b 50 V 20 % X7R 0402 - 55 C to + 125 C ROHS Lead-Free 1 C3 470 nF CGA3E3X7R1E474K080AB 16 V 10 % X7R 0603 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free SM0603 1 C4 100 nF CGA2B3X7R1H104K050BB 50 V 10 % X7R 0402 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free SM0402 1 C5 220 pF GCM155R71H221KA37D 50 V 10 % X7R 0402 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free SM0402 1 C6 47 nF GCM155R71C473KA37D 16 V 10 % X7R 0402 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free SM0402 1 C7 DNP GCM155R71H222KA37D 50 V 10 % X7R 0402 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free SM0402 1 C10 4.7 uF GCM32ER71H475KA55L 50 V 10 % X7R 1210 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free SM1210 1 C11 2.2 nF GCM155R71H222KA37 50 V 10 % X7R 0402 - 55 C to + 125 C AEC-Q200 ROHS Lead-Free SM0402 KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 22 (2) Bill of Materials Table 2. Bill of Materials (1) (continued) Resistors 1 R1 4.7 k CRCW04024K70FKED 50 V 1 % 0402 - 55 C to + 155 C AEC-Q200 ROHS Lead-Free SM0402 1 R2 2.2 k CRCW04022K20FKED 150 V 1 % 0805 - 55 C to + 155 C AEC-Q200 ROHS Lead-Free SM0402 2 R3 R4 220 CRCW0402220RFKED 50 V 1 % 0402 - 55 C to + 155 C AEC-Q200 ROHS Lead-Free SM0402 1 R5 100 k CRCW0402100KFKED 50 V 1% 0402 - 55 C to + 155 C AEC-Q200 ROHS Lead-Free SM0402 10 k NCP18XH103F03RB SM0603 10 kOhms 1% 0603 - 40 C to + 125 C AEC-Q200 ROHS Lead-Free Thermistor 1 R6 Connectors 1 BDM1 CONN_3X2 15-91-3060 2.54 mm smd 3x2 ROHS Lead-Free 2.54 mm smd 3x2 N/A 0.1 mOhm BAS-M-R00001-5.0E N/A Shunt 1 (3) Cables and Jacks 1 N/A N/A WH18-02-25 Red 18AWG 15 cm wire N/A 1 N/A N/A WHS18-00-25 Black 18AWG 15 cm wire N/A 1 N/A N/A BU-P5167-2 Red Banana Jack N/A 1 N/A N/A BU-P5167-0 Black Banana Jack N/A Notes 1. 2. 3. Freescale does not assume liability, endorse, or warrant components from external manufacturers that are referenced in circuit drawings or tables. While Freescale offers component recommendations in this configuration, it is the customer's responsibility to validate their application. Do not populate. Critical components. For critical components, it is vital to use the manufacturer listed. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. References 14 References Following are URLs where you can obtain information on related Freescale products and application solutions: Freescale.com Support Description Pages URL Product Summary Page http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MM9Z1_638 MM9Z1_638 P&E's USB BDM Multilink Tool Summary Page http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=USBMULTIL INKBDM Analog Home Page Home Page http://www.freescale.com/analog Automotive Home Page Home Page http://www.freescale.com/automotive 14.1 Support Visit www.freescale.com/support for a list of phone numbers within your region. 14.2 Warranty Visit www.freescale.com/warranty for a list of phone numbers within your region. KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 24 Revision History 15 Revision History Revision Date 1.0 4/2014 Description of Changes * Initial Release KTRD9Z1-638-12VUG User's Guide Rev. 1.0 4/2014 Freescale Semiconductor, Inc. How to Reach Us: Information in this document is provided solely to enable system and software implementers to use Freescale products. Home Page: freescale.com There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits based Web Support: freescale.com/support Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no on the information in this document. warranty, representation, or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters that may be provided in Freescale data sheets and/or specifications can and do vary in different applications, and actual performance may vary over time. All operating parameters, including "typicals," must be validated for each customer application by customer's technical experts. Freescale does not convey any license under its patent rights nor the rights of others. Freescale sells products pursuant to standard terms and conditions of sale, which can be found at the following address: freescale.com/SalesTermsandConditions. Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. (c) 2014 Freescale Semiconductor, Inc. Document Number: KTRD9Z1-638-12VUG Rev. 1.0 4/2014