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MAX6821WUK-T Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX6821WUK-T Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 9 page Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VCC = +4.5V to +5.5V for MAX682_L/M, VCC = +2.7V to +3.6V for MAX682_T/S/R, VCC = +2.1V to +2.75V for MAX682_Z/Y, VCC = +1.53V to +2.0V for MAX682_W/V, TA = -40°C to +125°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) Note 1: Over-temperature limits are guaranteed by design and not production tested. Devices tested at TA = +25°C. Note 2: Guaranteed by design and not production tested. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS TA = -40 °C to +85°C 140 200 280 Reset Timeout Period tRP TA = -40 °C to +125°C 100 320 ms VCC ≥ 1.0V, ISINK = 50µA, reset asserted, TA = 0 °C to +85°C 0.3 VCC ≥ 1.2V, ISINK = 100µA, reset asserted 0.3 VCC ≥ 2.55V, ISINK = 1.2mA, reset asserted 0.3 RESET Output LOW (Push-Pull or Open-Drain) VOL VCC ≥ 4.25V, ISINK = 3.2mA, reset asserted 0.4 V VCC ≥ 1.8V, ISOURCE = 200µA, reset not asserted 0.8 ✕ VCC VCC ≥ 3.15V, ISOURCE = 500µA, reset not asserted 0.8 ✕ VCC RESET Output HIGH (Push-Pull Only) VOH VCC ≥ 4.75V, ISOURCE = 800µA, reset not asserted 0.8 ✕ VCC V Open-Drain RESET Output Leakage Current (Note 1) ILKG VCC > VTH, RESET not asserted 1.0 µA VCC ≥ 1.0V, ISOURCE = 1µA, reset asserted, TA = 0 °C to +85°C 0.8 ✕ VCC VCC ≥ 1.50V, ISOURCE = 100µA, reset asserted 0.8 ✕ VCC VCC ≥ 2.55V, ISOURCE = 500µA, reset asserted 0.8 ✕ VCC RESET Output HIGH (Push-Pull Only) VOH VCC ≥ 4.25V, ISOURCE = 800µA, reset asserted 0.8 ✕ VCC V VCC ≥ 1.8V, ISINK = 500µA, reset not asserted 0.3 VCC ≥ 3.15V, ISINK = 1.2mA, reset not asserted 0.3 RESET Output LOW (Push-Pull Only) VOL VCC ≥ 4.75V, ISINK = 3.2mA, reset not asserted 0.4 V MANUAL RESET INPUT (MAX6821/MAX6822/MAX6823/MAX6825) VIL 0.3 ✕ VCC MR Input Voltage VIH 0.7 ✕ VCC V MR Minimum Input Pulse 1µs MR Glitch Rejection 100 ns MR to Reset Delay 200 ns MR Pullup Resistance 25 50 75 k Ω WATCHDOG INPUT (MAX6821/MAX6822/MAX6823/MAX6824) TA = -40 °C to +85°C 1.12 1.60 2.40 Watchdog Timeout Period tWD TA = -40 °C to +125°C 0.80 2.60 s WDI Pulse Width (Note 2) tWDI 50 ns VIL 0.3 ✕ VCC WDI Input Voltage VIH 0.7 ✕ VCC V WDI = VCC, time average 120 160 WDI Input Current IWDI WDI = 0, time average -20 -15 µA |
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