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MAX6371 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX6371 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 8 page Pin-Selectable Watchdog Timers 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VCC = +2.5V to +5.5V, SET_ = VCC or GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C and VCC = +3V.) (Note 1) 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. Terminal Voltage (with respect to GND) VCC .....................................................................-0.3V to +6V WDI.....................................................................-0.3V to +6V WDO (Open Drain: MAX6369/71/73) .................-0.3V to +6V WDO (Push-Pull: MAX6370/72/74 .......-0.3V to (VCC + 0.3V) SET0, SET1, SET2 ................................-0.3V to (VCC + 0.3V) Maximum Current, Any Pin (input/output)...........................20mA Continuous Power Dissipation (TA = +70°C) SOT23-8 (derate 8.75mW/°C above +70°C)...............700mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature ......................................................+150°C Lead Temperature (soldering, 10s) .................................+300°C VCC Rise or Fall Rate......................................................0.05V/µs PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Voltage Range VCC 2.5 5.5 V Supply Current ICC No load 8 20 µA Input High Voltage VIH WDI, SET0, SET1, SET2 0.8 × VCC V VCC ≥ 3.3V 0.8 Input Low Voltage VIL WDI, SET0, SET1, SET2 VCC ≥ 2.5V 0.6 V Logic Input Current (Note 2) WDI or SET_ = 0 or VCC 0 ±10 nA ISINK = 1.2mA, VCC > 2.7V, watchdog output asserted 0.3 V WDO Output Low Voltage VOL ISINK = 6mA, VCC > 4.5V, watchdog output asserted 0.4 V WDO Leakage Current ILKG V NDO = 0 to +5.5V, output deasserted, MAX6369/MAX6371/MAX6373 1µA ISOURCE = 500µA, VCC > 2.7V, watchdog output deasserted 0.8 × VCC WDO Output High Voltage VOH ISOURCE = 800µA, VCC > 4.5V, watchdog output deasserted VCC -1.5 V MAX6369/MAX6370 SET2 = 0, SET1 = 0, SET0 = 0 1 3 SET2 = 0, SET1 = 0, SET0 = VCC 10 30 SET2 = 0, SET1 = VCC, SET0 = 0 30 90 ms SET2 = 0, SET1 = VCC, SET0 = VCC Watchdog Disabled SET2 = VCC, SET1 = 0, SET0 = 0 100 300 ms SET2 = VCC, SET1 = 0, SET0 = VCC 13 SET2 = VCC, SET1 = VCC, SET0 = 0 10 30 Startup Delay Period tDELAY SET2 = VCC, SET1 = VCC, SET0 = VCC 60 180 s |
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