ILC1832

更新时间： 2024-11-25 22:33:47

品牌	Logo	应用领域
IMPALA		监控
页数	文件大小	规格书
5页	81K
描述
レP SUPERVISORY CIRCUIT

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中文翻译

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数据手册

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ILC1832 数据手册

Impala Linear Corporation

Preliminary

ILC1832

µP Supervisory Circuit

General Description

Features

The ILC1832 is a multifunction circuit which monitors micro-

processor activity, external reset and power supplies in

microprocessor based systems. Ths circuit functions

include a watchdog timer, power supply monitor, micro-

processor reset, and manual pushbutton reset input.

•

Power OK/Reset Time Delay, 250ms min.

Watchdog Timer, 150 ms, 600ms, or 1.2s Typical

Precision Supply Voltage Monitor, Select Between 5%

or 10% of Supply Voltage

18µA Supply Current

Debounced External Reset Input

•

The power supply line is monitored with a comparator and

an internal voltage reference. RST is forced low when an

out-of-tolerance condition exists and remains asserted for

at least 250ms after V_CCrises above the threshold voltage

8-Pin SOIC or DIP Package

Applications

•

Computers

Controllers

Critical Microprocessor Power Monitoring

Intelligent Instruments

Portable Equipment

(2.55V or 2.88V). The RST pin will remain logic low with

V_CCas low as 1.4V.

The Watchdog input (ST) monitors µP activity and will assert

RST if no µP activity has occurred within the watchdog time-

out period. The watchdog timeout period is selectable with

nominal periods of 150, 600, or 1200 milliseconds.

Ordering Information

Part

Package

8-Lead PDIP

8-Lead SOIC

Temp. Range

-40°C to +85°C

ILC1832N

ILC1832M

Typical Circuit

Pin-Package Configurations

Top View

V_CC

PBRST

V_CC

ILC1832

µP

ILC1832

TOL

GND

RST

I/O

RESET

PBRST

TOL

RST

GND

ETC1832N - 8 Lead Plastic DIP Package

ETC1832M - 8 Lead Plastic SOIC Package

Impala Linear Corporation

ILC1832 1.1

www.impalalinear.com

(408) 574-3939

October 1999

12 3 4 5

中文翻译

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