IMP1233DZ-5/S View Datasheet(PDF) - A1 PROs co., Ltd.

Part Name

Description

MFG CO.

IMP1233DZ-5/S

Low Power, 5V µP Reset – Active LOW, Open-Drain Output – 350ms Reset Period

A1 PROs co., Ltd. 

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Application Information

Operation – Power Monitor

The IMP1233M detects out-of-tolerance power supply conditions.

It resets a processor during power-up and issues a reset to the

system processor when the monitored power supply voltage

is below the reset threshold (power-down). When an out-of-

tolerance VCC voltage is detected, the RESET signal is asserted. On

power-up, RESET is kept active (LOW) for approximately 350ms

after the power supply voltage has reached the selected tolerance.

This allows the power supply and microprocessor to stabilize

before RESET is released.

VLTL

tR

VHTL

VCCTP

VCC

tRPU

VOH

RESET

1233M_05.eps

Figure 1. Timing Diagram: Power-Up

VCC

VHTL

VCCTP

tF

VLTL

RESET

tRPD

VOL

1233M_06.eps

Figure 2. Timing Diagram: Power-Down

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408-432-9100/www.impweb.com

IMP1233M

© 1999 IMP, Inc.

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