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MAX823 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX823 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 8 page ELECTRICAL CHARACTERISTICS (continued) (VCC = +4.75V to +5.5V for MAX82_L, VCC = +4.5V to +5.5V for MAX82_M, VCC = +3.15V to +3.6V for MAX82_T, VCC = +3V to +3.6V for MAX82_S, VCC = +2.7V to +3.6V for MAX82_R, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) Note 1: Over-temperature limits are guaranteed by design and not production tested. Note 2: The RESET short-circuit current is the maximum pull-up current when RESET is driven low by a µP bidirectional reset pin. Note 3: WDI is internally serviced within the watchdog period if WDI is left unconnected. Note 4: The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is designed to drive a three-stated-output device with a 10µA maximum leakage current and a maximum capacitive load of 200pF. This output device must be able to source and sink at least 200µA when active. 5-Pin Microprocessor Supervisory Circuits _______________________________________________________________________________________ 3 VRST - VCC = 100mV MAX824T/S/R, MAX825T/S/R, VCC = VRST max, ISINK = 1.2mA MAX82_L/M, VCC = VRST max, ISOURCE = 120µA MAX824L/M, MAX825L/M, VCC = VRST max, ISINK = 3.2mA VCC > 1.8V, ISOURCE = 150µA MAX82_L/M, RESET = 0V, VCC = 5.5V CONDITIONS µs 20 VCC to RESET Delay V 0.3 VOL RESET Output Voltage VCC - 1.5 0.4 0.8VCC VOH 800 UNITS MIN TYP MAX SYMBOL PARAMETER MAX82_T/S/R, VCC = VRST max, ISOURCE = 30µA 0.8VCC VOH MAX82_T/S/R, VCC = VRST min, ISINK = 1.2mA MAX82_L/M, VCC = VRST min, ISINK = 3.2mA 0.3 0.4 TA = -40°C to +85°C, VCC = 1.2V, VCC falling, VBATT = 0V, ISINK = 100µA TA = 0°C to +70°C, VCC = 1V, VCC falling, ISINK = 50µA V 0.3 VOL RESET Output Voltage 0.3 MAX82_T/S/R, RESET = 0V, VCC = 3.6V µA 400 ISOURCE RESET Output Short-Circuit Current (Note 2) VIL = 0.4V, VIH = 0.8VCC ns 50 tWDI WDI Pulse Width sec 1.12 1.60 2.40 tWD Watchdog Timeout Period WDI = 0V, time average WDI = VCC, time average VCC = 5V µA -20 -15 WDI Input Current (Note 4) 120 160 V 0.7VCC VIH WDI Input Threshold (Note 3) 0.3VCC VIL µs 1.0 MR Pulse Width V 0.7VCC VIH MR Input Threshold 0.3VCC VIL k Ω 35 52 75 MR Pull-Up Resistance (internal) ns 500 MR to Reset Delay ns 100 MR Noise Immunity (pulse width with no reset) MANUAL-RESET INPUT (MAX823/MAX825) WATCHDOG INPUT (MAX823/MAX824) |
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Similar Description - MAX823 |
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