TCM812LERCTR

更新时间： 2024-11-02 13:14:35

品牌	Logo	应用领域
美国微芯 - MICROCHIP		监视器微控制器
页数	文件大小	规格书
14页	251K
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中文翻译

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数据手册

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TCM812LERCTR 数据手册

TCM811/TCM812

4-Pin Microcontroller Reset Monitors

Features

General Description

• Precision V_DDMonitor for 2.0V, 2.8V, 3.0V, 3.3V,

The TCM811 and TCM812 are cost effective system

supervisory circuits designed to monitor V_DDin digital

systems and provide a reset signal to the host control-

ler when necessary. A manual reset input is provided

to override the reset monitor and is suitable for use as

a push-button reset. No external components are

required.

The reset output is driven active within 20 µsec (5 µsec

for F version) of V_DDfalling through the reset voltage

threshold. RESET is maintained active for a minimum

of 140 msec after V_DDrises above the reset threshold.

The TCM812 has an active high RESET output while

the TCM811 has an active low RESET output. The out-

put of the TCM811 is valid down to V_DD= 1V. Both

devices are available in a 4-Pin SOT-143 package,

specified with a temperature range of -40°C to +85°C.

5.0V Nominal Supplies

• Manual Reset Input

• 140 msec Minimum RESET Output Duration

• RESET Output Valid to V_DD= 1.0V (TCM811)

• Low 6 µA (typ.) Supply Current

• V_DDTransient Immunity

• Small 4-Pin SOT-143 Package

• No External Components

• Replacement for MAX811/812 and Offers a Lower

Threshold Voltage Option

• Push-Pull RESET Output

• Temperature Range:

- Commercial (C) -40°C to +85°C

The TCM811/TCM812 are optimized to reject fast tran-

sient glitches on the V_DDline. A low supply current of

6 µA (V_DD= 3.3V) makes these devices ideal for battery

powered applications.

Applications

• Computers

• Embedded Systems

• Battery Powered Equipment

• Critical Microcontroller Power Supply Monitoring

Package Types:

SOT-143

Typical Application Circuit

V_DD

GND

V_DD

0.1µF

V_DD

PIC

TCM811

Microcontroller

TCM811 RESET

TCM812 (RESET)

RESET

GND

PUSH

INPUT

BUTTON

(Active Low)

GND

2002 Microchip Technology Inc.

DS21615B-page 1

12 3 4 5 6 7...14

中文翻译

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