DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM General Description The DS1089L is a clock generator that produces a spread-spectrum (dithered) square-wave output of frequencies from 130kHz to 66.6MHz. The DS1089L is shipped from the factory programmed at a specific frequency. The DS1089L is pin-for-pin compatible with the DS1087L, however, the DS1089L dithers at equal percentages above and below the center frequency. The user still has access to the internal frequency divider, selectable 1%, 2%, 4%, or 8% dithered output, dithering rate, and programmable output power-down/disable mode through an I2C-compatible programming interface. All the device settings are stored in nonvolatile (NV) EEPROM allowing it to operate in stand-alone applications. The DS1089L also has power-down and output-enable control pins for power-sensitive applications. Applications Features Factory-Programmed Square-Wave Generator from 33.3MHz to 66.6MHz Center Frequency Remains Constant Independent of Dither Percentage No External Timing Components Required EMI Reduction Variable Dither Frequency User Programmable Down to 130kHz with Divider (Dependent on Master Oscillator Frequency) 1%, 2%, 4%, or 8% Selectable Dithered Output Glitchless Output-Enable Control I2C-Compatible Serial Interface Nonvolatile Settings Power-Down Mode Printers Copiers Computer Peripherals POS Terminals Cable Modems Programmable Output Power-Down/Disable Mode Ordering Information Pin Configuration and Typical Operating Circuits appear at end of data sheet. PART DS1089LU-yxx* TEMP RANGE -40C to +85C PIN-PACKAGE 8 SOP (118 mil) *See Standard Frequency Options Table. Standard Frequency Options PART FREQUENCY (MHz) SPREAD (%) DITHER FREQUENCY DS1089LU-21G 14.7456 1 DS1089LU-4CL 18.432 2 fMOSC/4096 DS1089LU-22F 24.576 1 DS1089LU-23C 33.3 1 DS1089LU-450 50.0 2 DS1089LU-866 66.6 4 DS1089LU-yxx Fixed up to 66.6 1, 2, 4, or 8 Add "/T" for Tape and Reel. Custom frequencies available, contact factory. EconOscillator is a trademark of Maxim Integrated Products, Inc. 19-7501; Rev 3; 2/15 fMOSC/4096 fMOSC/2048 fMOSC/4096 fMOSC/4096 fMOSC/4096 fMOSC/2048 or 4096 or 8192 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Absolute Maximum Ratings Voltage on VCC Relative to Ground.....................-0.5V to +6.0V Voltage on SPRD, PDN, OE, SDA, SCL Relative to Ground*....................... -0.5V to (VCC + 0.5V) Operating Temperature Range............................ -40C to +85C Programming Temperature Range..........................0C to +70C Storage Temperature Range............................. -55C to +125C Soldering Temperature.................. See IPC/JEDEC J-STD-020A *This voltage must not exceed 6.0V. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Recommended Operating Conditions (TA = -40C to +85C.) PARAMETER Supply Voltage High-Level Input Voltage (SDA, SCL, SPRD, PDN, OE) Low-Level Input Voltage (SDA, SCL, SPRD, PDN, OE) SYMBOL VCC CONDITION (Note 1) VIH MIN TYP MAX UNITS 2.7 3.3 3.6 V VCC + 0.3 V 0.3 x VCC V MAX UNITS 0.7 x VCC VIL -0.3 DC Electrical Characteristics (VCC = +2.7V to +3.6V, TA = -40C to +85C.) PARAMETER SYMBOL High-Level Output Voltage (OUT) VOH IOH = -4mA, VCC = min VOL1 Low-Level Output Voltage (OUT) Low-Level Output Voltage (SDA) High-Level Input Current Low-Level Input Current Supply Current (Active) Standby Current (Power-Down) www.maximintegrated.com VOL VOL2 CONDITION V 0.4 3mA sink current 0.4 6mA sink current 0.6 VIH = VCC ICC CL = 15pF, fOUT = fMOSCmax ICCQ TYP 2.4 IOL = 4mA IIH IIL MIN VIL = 0V Power-down mode V V 1 A 12 mA 10 A -1 A Maxim Integrated 2 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Master Oscillator Characteristics (VCC = +2.7V to +3.6V, TA = -40C to +85C.) PARAMETER Internal Master Oscillator Frequency Master Oscillator Frequency Tolerance SYMBOL CONDITION MAX UNITS 33.3 66.6 MHz VCC = 3.3V, TA = +25C (Notes 2, 10) -0. 5 +0. 5 % TA = +25C (Note 3) -0.75 +0.75 % TA = 0C to +85C -0.75 +0.75 TA = -40C to 0C -2.00 +0.75 fMOSC f MOSC f MOSC f Voltage Frequency Variation f MOSC Temperature Frequency Variation (Note 4) f MOSC f Dither Frequency Range (Note 5) VCC = 3.3V, fOUT = fMOSCmax MIN J3 = J2 = GND 1 J3 = GND, J2 = VCC 2 fMOD % % J3 = VCC, J2 = GND 4 J1 = GND, J0 = VCC fMOSC / 2048 J1 = J0 = VCC fMOSC / 8192 J3 = J2 = VCC Dither Frequency (Note 5) TYP 8 J1 = VCC, J0 = GND fMOSC / 4096 Hz AC Electrical Characteristics (VCC = +2.7V to +3.6V, TA = -40C to +85C.) PARAMETER SYMBOL CONDITION MIN TYP Frequency Stable After PRESCALER Change Power-Up Time tPOR + tSTAB (Note 6) Enable of OUT After Exiting Power-Down Mode tSTAB (Note 6) OUT Disabled After Entering Power-Down Mode tPDN 7 CL 15 Load Capacitance Output Duty Cycle (fOUT) www.maximintegrated.com 40 50 MAX UNITS 1 Period 200 s 512 clock cycles s 50 pF % Maxim Integrated 3 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM AC Electrical Characteristics--I2c Interface (VCC = +2.7V to +3.6V, TA = -40C to +85C, unless otherwise noted. Timing referenced to VIL(MAX) and VIH(MIN).) PARAMETER SYMBOL SCL Clock Frequency Bus Free Time Between Stop and Start Conditions fSCL Hold Time (Repeated) Start Condition Low Period of SCL High Period of SCL Data Hold Time Data Setup Time Start Setup Time SDA and SCL Rise Time SDA and SCL Fall Time CONDITIONS (Note 7) TYP 0 MAX UNITS 400 kHz tBUF 1.3 s tHD:STA 0.6 s tLOW 1.3 s tHD:DAT 0 tHIGH 0.6 tSU:DAT 100 ns 0.6 s tSU:STA tR (Note 8) tF (Note 8) SDA and SCL Capacitive Loading CB (Note 8) EEPROM Write Time tWR (Note 9) Stop Setup Time MIN s 0.9 20 + 0.1CB 20 + 0.1CB tSU:STO s 300 ns 300 ns 0.6 s 400 pF 10 20 ms TYP MAX UNITS Nonvolatile Memory Characteristics (VCC = +2.7V to +3.6V.) Writes Note Note Note Note Note PARAMETER SYMBOL +70C CONDITION MIN 10,000 1: 2: 3: 4: 5: All voltages are referenced to ground. This is the absolute accuracy of the master oscillator frequency at the default settings with spread disabled. This is the change that is observed in master oscillator frequency with changes in voltage at TA = +25C. This is the change that is observed in master oscillator frequency with changes in temperature at VCC = 3.3V. The dither deviation of the master oscillator frequency is bidirectional and results in an output frequency centered at the undithered frequency. Note 6: This indicates the time elapsed between power-up and the output becoming active. An on-chip delay is intentionally introduced to allow the oscillator to stabilize. tSTAB is equivalent to 512 master clock cycles and will depend on the programmed master oscillator frequency. Note 7: Timing shown is for fast-mode (400kHz) operation. This device is also backward compatible with I2C standard-mode timing. Note 8: CB--total capacitance of one bus line in picofarads. Note 9: EEPROM write time applies to all the EEPROM memory and SRAM shadowed EEPROM memory when WC = 0. The EEPROM write time begins after a stop condition occurs. Note 10:Typical frequency shift due to aging is 0.25%. Aging stressing includes Level 1 moisture reflow conditioning (24hr) +125C bake, 168hr +85C/85RH moisture soak, and three solder reflow passes +269 +0/-5C peak) followed by 408hr max VCC biased 125C HTOL, 500 temperature cycles at -55C to +125C, 96hr +130C/85%RH/3,6V HAST and 168hr +121C/2 ATM Steam/Unbiased Autoclave. www.maximintegrated.com Maxim Integrated 4 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Typical Operating Characteristics (VCC = 3.3V, TA = +25C, unless otherwise noted.) 6 4 50MHz 130kHz 33MHz 2 8 66MHz 7 6 5 4 50MHz 3 33MHz 2 130kHz SUPPLY CURRENT vs. PRESCALER 10 DS 1089L toc03 TA = +25C, OUTPUT UNLOADED 9 SUPPLY CURRENT (mA) 8 66MHz 10 DS 1089L toc01 TA = +25C, OUTPUT UNLOADED SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 10 ACTIVE SUPPLY CURRENT vs. TEMPERATURE DS 1089L toc02 ACTIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE TA = +25C, fMOSC = 50MHz, OUTPUT UNLOADED 8 6 4 3.6V 3.3V 2.7V 2 1 2.7 3.3 -40 -15 10 35 60 0 85 1 10 1000 100 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE FREQUENCY % CHANGE vs. SUPPLY VOLTAGE FREQUENCY % CHANGE vs. TEMPERATURE 2 1 TA = +25C 33MHz 0.25 66MHz 130kHz 0 -0.25 50MHz -40 -15 10 35 TEMPERATURE (C) www.maximintegrated.com 60 85 -0.50 2.7 3.0 3.3 SUPPLY VOLTAGE (V) 3.6 0.2 FREQUENCY CHANGE (%) 3 0.50 FREQUENCY CHANGE (%) VCC = 3.3V, PDN = GND DS 1089L toc06 PRESCALE DIVIDER (DECIMAL) DS 1089L toc05 TEMPERATURE (C) 4 0 0 3.6 SUPPLY VOLTAGE (V) 5 SUPPLY CURRENT (A) 3.0 DS 1089L toc04 0 VCC = 3.3V 0 130kHz -0.2 -0.4 50MHz 66MHz -0.6 -0.8 33MHz -40 -15 10 35 60 85 TEMPERATURE (C) Maxim Integrated 5 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Typical Operating Characteristics (continued) (VCC = 3.3V, TA = +25C, unless otherwise noted.) 54 52 50 3.0 3.3 SUPPLY VOLTAGE (V) 50MHz 54 52 33MHz 50 130kHz 2.7 66MHz 48 -40 -15 10 -10 2% 35 60 85 1% NO SPREAD -20 DS 1089L toc09 SPECTRUM COMPARISON (120kHz BW, SAMPLE DETECT) -30 -40 8% 4% -50 -60 -70 fMOSC = 50MHz, DITHER RATE = fMOSC / 4096 -80 130kHz 3.6 0 POWER SPECTRUM (dBm) 33MHz VCC = 3.3V 56 DUTY CYCLE (%) DUTY CYCLE (%) 66MHz 50MHz 48 58 DS 1089L toc08 TA = +25C 56 DUTY CYCLE vs. TEMPERATURE DS 1089L toc07 58 DUTY CYCLE vs. SUPPLY VOLTAGE -90 TEMPERATURE (C) 44 46 48 50 52 54 56 FREQUENCY (MHz) Pin Description PIN NAME 2 SPRD 1 3 OUT Oscillator Output FUNCTION Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the dither is disabled. VCC Power Supply 4 GND 5 OE Output Enable. When the pin is high, the output buffer is enabled. When the pin is low, the output is disabled but the internal master oscillator is still on. 6 PDN Power-Down. When the pin is high, the master oscillator is enabled. When the pin is low, the master oscillator and the output buffer are disabled (power-down mode). 7 SDA I2C Serial Data. This pin is for serial data transfer to and from the device. 8 SCL I2C Serial Clock. This pin is used to clock data into and out of the device. Ground www.maximintegrated.com Maxim Integrated 6 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Block Diagram PDN H/W GATED OUTPUT OE SDA CONTROL REGISTERS I2C I2C SERIAL ADDRESS INTERFACE BITS SCL OUTPUT CONTROL S/W GATED OUTPUT ADDR J3 WRITE EE COMMAND J2 OE X WC A2 A1 A0 EEPROM WRITE CONTROL fMOSC PRESCALER DIVIDE BY 1, 2, 4, 8, 16, 32, 64, 128, OR 256 fOSC SYNCED OUTPUT BUFFER f OUT OUT f MOD DITHER RATE DITHER % J1 J0 VCC GND FACTORYPROGRAMMED MASTER OSCILLATOR 33.3MHz TO 66.6MHz EEPROM VCC DS1089L LO/ HIZ X P3 P2 P1 TRIANGLEWAVE GENERATOR fMOSC P0 PRESCALER SETTING OUTPUT CONFIGURATION PRESCALER SPRD Detailed Description Master Oscillator The internal master oscillator is capable of generating a square wave with a 33.3MHz to 66.6MHz frequency range. The master oscillator frequency (fMOSC) is factory programmed, and is specified in the Ordering Information. Prescaler The user can program the prescaler divider to produce an output frequency (fOUT) as low as 130kHz using bits P0, P1, P2, and P3 in the PRESCALER register. The output frequency can be calculated using Equation 1. Any value programmed greater than 28 will be decoded as 28. See Table 1 for prescaler divider settings. Table 1. Prescaler Divider Settings BITS P3, P2, P1, P0 2x = 0000 1 0001 2 0010 4 0011 8 0100 16 0101 32 0110 64 0111 128 1000 256 1111 256 fOUT = fOSC fMOSC fMOSC / 2 fMOSC / 4 fMOSC / 8 fMOSC / 16 fMOSC / 32 fMOSC / 64 fMOSC / 128 fMOSC / 256 Equation 1 f Output Frequency (Hz) f OSC = MOSC 2x fMOSC / 256 where x = P3, P2, P1, P0 www.maximintegrated.com Maxim Integrated 7 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Output Control Dither Percentage Settings Additionally, the OE input is OR'ed with the OE bit in the ADDR register, allowing for either hardware or software gating of the output waveform (see the Block Diagram). The location of bits P3, P2, P1, P0, J1, and J0 in the PRESCALER register and bits J3 and J2 in the ADDR register are shown in the Register Summary section. Both controls feature a synchronous enable, which ensures that there are no output glitches when the output is enabled. The synchronous enable also ensures a constant time interval (for a given frequency setting) from an enable signal to the first output transition. Table 2. Dither Frequency Settings Two user control signals control the output. The output enable pin (OE) gates the output buffer and the power-down pin (PDN) disables the master oscillator and turns off the output for power-sensitive applications. (Note: the power-down command must persist for at least two output frequency cycles plus 10s for deglitching purposes.) On power-up, the output is disabled until power is stable and the master oscillator has generated 512 clock cycles. The dither amplitude (measured in percentage of the master oscillator center frequency) is set using the J2 and J3 bits in the ADDR register. This circuit uses a sense current from the master oscillator bias circuit to adjust the amplitude of the triangle-wave signal to a voltage level that modulates the master oscillator to a percentage of its factory-programmed center frequency. This percentage is set in the application to be 1%, 2%, 4%, or 8% (see Table 3). BITS J1, J0 DITHER FREQUENCY 00 No dither 01 fMOSC/2048 10 Dither Generator The DS1089L has the ability to reduce radiated emission peaks. The output frequency can be dithered by 1%, 2%, 4%, or 8% symmetrically around the programmed center frequency. Although the output frequency changes when the dither is enabled, the duty cycle does not change. The dither rate (fMOD) is controlled by the J0 and J1 bits in the PRESCALER register and is enabled with the SPRD pin. The maximum spectral attenuation occurs when the prescaler is set to 1. The spectral attenuation is reduced by 2.7dB for every factor of 2 that is used in the prescaler. This happens because the prescaler's divider function tends to average the dither in creating the lower frequency. However, the most stringent spectral emission limits are imposed on the higher frequencies where the prescaler is set to a low divider ratio. 11 fMOSC/4096 fMOSC/8192 Table 3. Dither Percentage Settings BITS J3, J2 DITHER AMOUNT 00 1% 01 2% 10 4% 11 8% A triangle-wave generator injects an offset element into the master oscillator to dither its output. The dither rate can be calculated based on the master oscillator frequency (see Equation 2). Equation 2 f f MOD = MOSC n where fMOD = dither frequency, fMOSC = master oscillator frequency, and n = divider setting (see Table 2). www.maximintegrated.com Maxim Integrated 8 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM When dither is enabled (by selecting a dither frequency setting greater than 0 with SPRD high), the master oscillator frequency is dithered around the center frequency by the selected percentage from the programmed fMOSC (see Figure 2). For example, if fMOSC is programmed to 40MHz (factory setting) and the dither amount is programmed to 1%, the frequency of fMOSC will dither between 39.6MHz and 40.4MHz at a modulation frequency determined by the selected dither frequency. Continuing with the same example, if J1 = 0 and J0 = 1, selecting fMOSC/2048, then the dither frequency would be 19.531kHz. IF DITHER AMOUNT = 0% (+1, 2, 4, OR 8% OF fMOSC) PROGRAMMED fMOSC (-1, 2, 4, OR 8% OF fMOSC) fMOSC DITHER AMOUNT (2, 4, 8, OR 16%) 1 fMOD TIME Register Summary Figure 2. Output Frequency vs. Dither Rate The DS1089L registers are used to change the dither amount, output frequency, and slave address. A bit summary of the registers is shown in Table 4. Once programmed into EEPROM, the settings only need to be reprogrammed if it is desired to reconfigure the device. ADDR Register PRESCALER Register Bits 7 to 6: Dither Percentage. The J3 and J2 bits control the selected dither amplitude (%). When both J3 and J2 are set to 0, the default dither rate is 1%. Bits 7 to 6: Dither Frequency. The J1 and J0 bits control the dither frequency applied to the output. See Table 2 for divider settings. If either of bits J1 or J0 is high and SPRD is high, dither is enabled. Bit 5: Output Enable. The OE bit and the OE pin state determine if the output is on when the device is active (PDN = VIH). If (OE = 0 OR OE is high) AND the PDN pin is high, the output will be driven. Bit 5: Output Low or Hi-Z. The LO/HIZ bit determines the state of the output during power-down. While the output is deactivated, if the LO/HIZ bit is set to 0, the output will be high impedance (high-Z). If the LO/HIZ bit is set to 1, the output will be driven low. Bit 4: Reserved. Bit 3: Write Control. The WC bit determines if the EEPROM is to be written after register contents have been changed. If WC = 0 (default), EEPROM is written automatically after a write. If WC = 1, the EEPROM is only written when the WRITE EE command is issued. See the WRITE EE Command section for more information. Bits 2 to 0: Address. The A0, A1, A2 bits determine the lower nibble of the I2C slave address. Bit 4: Reserved. Bits 3 to 0: Prescaler Divider. The prescaler bits (bits P3 to P0) divide the master oscillator frequency by 2x where x can be from 0 to 8. Any prescaler bit value entered that is greater than 8 will decode as 8. See Table 1 for prescaler settings. Table 4. Register Summary REGISTER ADDR BIT7 BINARY PRESCALER 02h J1 J0 LO/ HIZ X P3 P2 ADDR 0Dh J3 J2 OE X WC A2 WRITE EE 3Fh No Data BIT0 DEFAULT ACCESS P1 P0 xx00xxxxb R/W A1 A0 xx100000b R/W -- -- X = "don't care" x = values depend on custom settings www.maximintegrated.com Maxim Integrated 9 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM WRITE EE Command bit, the value of the ADDR register is always written immediately to EEPROM. When the WRITE EE command has been received, the contents of the registers are written into the EEPROM, thus locking in the register settings. The WRITE EE command is useful in closed-loop applications where the registers are frequently written. In applications where the register contents are frequently written, the WC bit should be set to 1 to prevent wearing out the EEPROM. Regardless of the value of the WC I2C Serial Port Operation SDA MSB SLAVE ADDRESS R/W DIRECTION BIT ACKNOWLEDGEMENT SIGNAL FROM RECEIVER ACKNOWLEDGEMENT SIGNAL FROM RECEIVER SCL 1 2 6 7 8 9 1 2 3-7 8 ACK START CONDITION 9 ACK REPEATED IF MORE BYTES ARE TRANSFERRED STOP CONDITION OR REPEATED START CONDITION Figure 3. I2C Data Transfer Protocol LSB MSB 1 0 1 DEVICE IDENTIFIER 1 A2 A1 A0 R/W DEVICE READ/WRITE BIT ADDRESS Figure 4. Slave Address Byte www.maximintegrated.com Maxim Integrated 10 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM SDA tBUF tSP tHD:STA tLOW tR tF SCL tHD:STA STOP tSU:STA tHIGH tSU:DAT START REPEATED START tHD:DAT tSU:STO Figure 5. I2C AC Characteristics TYPICAL I2C WRITE TRANSACTION MSB START 1 LSB 0 1 1 DEVICE IDENTIFIER A2* A1* A0* R/W DEVICE ADDRESS SLAVE ACK READ/ WRITE MSB b7 LSB b6 b5 b4 b3 b2 b1 b0 B0h START 1 0 11 0 0 0 0 MSB b7 COMMAND/REGISTER ADDRESS EXAMPLE I2C TRANSACTIONS (WHEN A0, A1, AND A2 ARE ZERO) B0h 02h DATA SLAVE SLAVE A) SINGLE BYTE WRITE 00000010 10000000 START 1 0 11 0 0 0 0 ACK ACK -WRITE PRESCALER REGISTER TO 128 B) SINGLE BYTE READ -READ PRESCALER REGISTER SLAVE ACK LSB b6 b5 b4 b3 b2 b1 b0 SLAVE STOP ACK DATA SLAVE ACK STOP B1h DATA 02h MASTER STOP SLAVE REPEATED SLAVE SLAVE 1 0 11 0 0 0 1 00000010 10000000 NACK START ACK ACK ACK *THE ADDRESS DETERMINED BY A0, A1, AND A2 MUST MATCH THE ADDRESS SET IN THE ADDR REGISTER. Figure 6. I2C Transactions Applications Information Power-Supply Decoupling To achieve the best results when using the DS1089L, decouple the power supply with 0.01F and 0.1F high-quality, ceramic, surface-mount capacitors. Surface-mount components minimize lead inductance, which improves performance, and ceramic capacitors www.maximintegrated.com tend to have adequate high-frequency response for decoupling applications. These capacitors should be placed as close to the VCC and GND pins as possible. Stand-Alone Mode SCL and SDA cannot be left floating even in stand-alone mode. If the DS1089L will never need to be programmed in-circuit, including during production testing, SDA and SCL can be connected high. Maxim Integrated 11 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Typical Operating Circuits PROCESSOR-CONTROLLED MODE STAND-ALONE MODE VCC DITHERED 130kHz TO 66.6MHz OUTPUT VCC 4.7k OUT SPRD 4.7k SCL DS1089L SDA 2-WIRE INTERFACE VCC DITHERED 130kHz TO 66.6MHz OUTPUT XTL1/OSC1 XTL2/OSC2 N.C. VCC VCC OUT SPRD SCL* DS1089L SDA* MICROPROCESSOR VCC PDN VCC PDN GND OE GND OE DECOUPLING CAPACITORS (0.1F and 0.01F) DECOUPLING CAPACITORS (0.1F and 0.01F) *SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1089L NEVER NEEDS TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING. Pin Configuration Chip Topology TRANSISTOR COUNT: 5985 TOP VIEW SUBSTRATE CONNECTED TO GROUND OUT 1 SPRD 2 8 SCL DS1089L 7 SDA VCC 3 6 GND 4 5 OE SOP (118 mils) www.maximintegrated.com PDN Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Maxim Integrated 12 DS1089L 3.3V Center Spread-Spectrum EconOscillatorTM Revision History REVISION NUMBER REVISION DATE 2 5/06 3 2/15 DESCRIPTION PAGES CHANGED -- Removed automotive reference from data sheet 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated's website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. (c) 2015 Maxim Integrated Products, Inc. 13 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: DS1089LU-140+ DS1089LU-140+T DS1089LU-21G+ DS1089LU-22F+ DS1089LU-22F+T DS1089LU-23C+ DS1089LU-266+ DS1089LU-450+ DS1089LU-4CL+ DS1089LU-4CL+T DS1089LU-866+ DS1089LU-A29+ DS1089LU-A29+T DS1089LU-C29+ DS1089LU-C29+T DS1089LU-F20+ DS1089LU-H1H+ DS1089LU-H1R+ DS1089LU-140+W DS1089LU-C29+W DS1089LU-A29+TW