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DS1841T+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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DS1841T+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 16 page Temperature-Controlled, NV, I2C, Logarithmic Resistor 4 _______________________________________________________________________________________ Note 1: All voltages are referenced to ground. Currents entering the IC are specified positive and currents exiting the IC are negative. Note 2:ICC is specified with the following conditions: SCL and SDA = VCC, RW and RH floating with Update Mode bit = 1. Note 3: This is the minimum VCC voltage that causes NV memory to be recalled. Note 4: This is the time from VCC > VPOR until initial memory recall is complete. Note 5: Guaranteed by design. Note 6: I2C interface timing shown is for Fast-Mode (400kHz) operation. This device is also backward-compatible with I2C- Standard Mode timing. Note 7: CB—total capacitance of one bus line in picofarads. Note 8: EEPROM write time begins after a STOP condition occurs. Note 9: Guaranteed by characterization. I2C AC ELECTRICAL CHARACTERISTICS (See Figure 3) (continued) (VCC = +2.7V to +5.5V, TA = -40°C to +100°C, timing referenced to VIL(MAX) and VIH(MIN).) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS EEPROM Write Time tW (Note 8) 10 20 ms A0, A1 Setup Time tSU:A Before START 0.6 μs A0, A1 Hold Time tHD:A After STOP 0.6 μs Input Capacitance on A0, A1, SDA, or SCL CI 5 10 pF Startup Time tST 2 ms NONVOLATILE MEMORY CHARACTERISTICS (VCC = +2.7V to +5.5V) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS EEPROM Write Cycles TA = +85°C 50,000 Writes EEPROM Write Cycles TA = +25°C (Note 9) 200,000 Writes |
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