Dual/Triple-Voltage

µP Supervisory Circuits

6

_______________________________________________________________________________________

Pin Description

PIN

MAX6351

MAX6352

MAX6353

MAX6354

MAX6355

MAX6356

MAX6357

MAX6358

MAX6359

MAX6360

NAME

FUNCTION

RST1

—

—

—

1

—

1

1

1

RST

Active-Low Reset Output. Open drain for the MAX6352/

the MAX6353/MAX6356/MAX6359, and push-pull with

2

2

2

2

GND

Ground

Manual-Reset Input. Pull low to force a reset. RST,

RST1, and RST2 remain active as long as MR is low

and for the timeout period after MR goes high.

MR

3

3

3

3

4

4

4

4

Supply Input. Powers the device when it is above

RST2

—

—

—

5

—

—

5

—

RSTIN

Undervoltage Reset Comparator Input. Asserts

reset when the monitored voltage falls below 1.22V.

Set the reset threshold with an external resistive

Watchdog Input. If WDI remains either high or low

longer than the timeout period, then reset is trig-

gered. The timer clears when reset is asserted or

whenever WDI sees a rising or falling edge. Leave

floating to disable it if unused.

WDI

5

—

—

—

6

5

6

6

Supply Input. Powers the device when it is above