MAX825YEXK データシートの表示（PDF） - Maxim Integrated

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MAX825YEXK

5-Pin Microprocessor Supervisory Circuits With Watchdog Timer and Manual Reset

Maxim Integrated 

5-Pin Microprocessor Supervisory Circuits With

Watchdog Timer and Manual Reset

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, VCC = +2.38V to +2.75V for MAX82_Z, VCC = +2.25V to +2.75V for

MAX82_Y, TA = TMIN to TMAX, TA = -40°C to +85°C (SC70), TA = -40°C to +125°C (SOT23), unless otherwise noted. Typical values

are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

MANUAL RESET INPUT (MAX823/MAX825)

MR Input Voltage

VIL

VIH

MR Pulse Width

0.3 ✕ VCC

V

0.7 ✕ VCC

1.0

µs

MR Noise Immunity (pulse width

with no reset)

100

ns

MR to Reset Delay

500

ns

MR Pullup Resistance

(internal)

35

52

75

kΩ

Note 1: Over-temperature limits are guaranteed by design and not production tested.

Note 2: The RESET short-circuit current is the maximum pullup 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.

4 _______________________________________________________________________________________

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