MIC1832NC

更新时间： 2024-11-28 13:11:31

品牌	Logo	应用领域
麦瑞 - MICREL		监控
页数	文件大小	规格书
8页	164K
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MIC1832NC 数据手册

MIC1832 µP Supervisory Circuit

MIC1832

µP Supervisory Circuit

Pin Configuration

Description

The MIC1832 is a multifunction circuit which monitors

microprocessor activity, external reset and power

supplies in microprocessor based systems. The circuit

functions include a watchdog timer, power supply

monitor, microprocessor reset, and manual pushbutton

reset input.

Top View

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

rises above the

threshold voltage (2.55V or 2.88V). The RST pin will

remain logic low with V as low as 1.4V.

MIC1832N - 8 Lead Plastic DIP Package

MIC1832M - 8 Lead Plastic SOIC Package

The Watchdog input (ST) monitors µP activity and will

assert RST if no µP activity has occurred within the

watchdog timeout period. The watchdog timeout period

is selectable with a nominal periods of 150, 600, or

1200 milliseconds.

Features

Power OK/Reset Time Delay, 250ms min.

Watchdog Timer, 150ms, 600ms, or

1.2s typical

Typical Applications

Automotive Systems

Precision Supply Voltage Monitor, Select

Between 5% or 10% of Supply Voltage

Intelligent Instruments

Available in 8-pin Surface Mount (SO)

Critical Microprocessor Power Monitoring

Debounced External Reset Input

Battery Powered Computers

Low Supply Current, < 18µA Typ.

Controllers

Ordering Information

Typical Operating Circuit

Part

Package

Temp. Range

-40°C to +85°C

MIC1832N

MIC1832M

8-Lead PDIP

8-Lead SOIC

12 3 4 5 6 7 8

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