Nanopower µP Supervisory Circuits with

Manual Reset and Watchdog Timer

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7

MAX6861/MAX6862/MAX6863 Pin Description

PIN

MAX6861/

MAX6863

MAX6862

NAME

FUNCTION

11

CT

Reset Timeout Select Input. Connect CT low to select the D1 reset timeout output

reset timeout period.

22

GND

Ground

33

MR

Active-Low Manual Reset Input. Drive MR low to initiate a reset. The reset output

remains asserted while MR is held low and for the reset timeout period after MR

4—

RESET

Active-Low Open-Drain or Push-Pull Reset Output. RESET transitions from high to

reset threshold and MR deasserts. Push-pull RESET outputs are referenced to

55

a 0.1µF capacitor to GND.

—4

RESET

Active-High Push-Pull Reset Output. RESET transitions from low to high when