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MAX6917EO33 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX6917EO33 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 31 page I2C-Compatible RTC with Microprocessor Supervisor, Alarm, and NV RAM Controller 4 _______________________________________________________________________________________ DC ELECTRICAL CHARACTERISTICS (continued) (VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CE_OUT Active-Low Delay After VCC > VRST tRP 140 200 280 ms CE_OUT High Voltage VOH IOH = -100µA, VBATT = 2V, VCC = 0, RESET = low 0.8 x VBATT V MR INPUT (Figure 10) VIL 0.8 MR Input Voltage VIH 2.0 V MR Pullup Resistance Internal pullup resistor 50 k Ω MR Minimum Pulse Width 1µs MR Glitch Immunity tGW 35 ns MR to RESET Delay tRD VCC = VCC(MIN), VBATT = 0 450 600 ns WDI INPUT (Figure 12) WDI Initial Timeout Period VCC > VRST from rising edge of RESET 1.00 1.6 2.25 s tWDL Long watchdog timeout period 1.00 1.6 2.25 s Watchdog Timeout Period tWDS Short watchdog timeout period 140 200 280 ms Minimum WDI Input Pulse Width tWDI 100 ns VIL 0.8 WDI Input Threshold VIH 2.0 V WDI Input-Leakage Current VWDI = VCC or GND -100 +100 nA VCC Standby Current with WDI Max Frequency ICCSW Watchdog frequency = 1MHz, VCC = VCC(MAX), 1Hz, 32kHz outputs disabled (Note 5) 450 µA BATTERY TEST AND TRIP (Figures 17, 18, and 19) VBATT Trip Point VBTP Internal mode 2.45 2.6 2.70 V TRIP Input Threshold VTRIP VCC = VCC(MAX), VBATT = 2V, external mode 1.14 1.24 1.31 V TRIP Input Comparator Hysteresis VTRIP_HYST 10 mV TRIP Input Current ITRIP_LKG External mode -100 +100 nA Battery Test Load RLOAD_INT Internal 0.50 0.91 1.30 M Ω TEST Output-High Voltage VTEST_HIGH ITEST = -5mA VOUT - 0.3V V TEST Output-Low Voltage VTEST_LOW ITEST = 5mA 0.3 V BATT_LO, ALM OUTPUT VBATT = 2V, VCC = 0, IOL = 5mA 0.5 VCC = 2.7V, VBATT = 0, IOL = 10mA 0.5 Output Low Voltage VOL VCC = 4.5V, VBATT = 0, IOL = 20mA 0.5 V Off-Leakage ILKG -100 +100 nA |
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