G681LT1 查看數據表（PDF） - Global Mixed-mode Technology Inc

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G681LT1

Microprocessor reset IC

Global Mixed-mode Technology Inc 

Global Mixed-mode Technology Inc.

Timing Diagram

G680/G681

VHTH

A

VBATT VLTH

0V

VRESET

VOH

VOL

tRST

tRST

VRESET

VOH

VOL

Propagation delays not shown for clarity.

Functional Diagram

VDD

Low-Voltage Detect

+

LTH

HTH

High-Voltage Detect

+

Delay

Line

+

1.24V

Bandgap

Reference

GND

One Shot

RQ

SQ

RESET

RESET

G680/G681

Ver: 1.1

Jun 07, 2002

TEL: 886-3-5788833

http://www.gmt.com.tw

3

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