TC1272A datasheet(1/12 Pages) MICROCHIP

Part #	TC1272A

Description	3-Pin Reset Monitor

PDF	12 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2004 Microchip Technology Inc.

DS21877A-page 1

M

TC1272A

Features

• Precision VDD Monitor

• 140 msec Minimum RESET, Output Duration

• Output Valid to VDD = 1.2V

•VDD Transient Immunity

• Small 3-Pin SOT-23B Package

• No External Components

Applications

• Computers

• Embedded Systems

• Battery-Powered Equipment

• Critical µP Power Supply Monitoring

Typical Application Circuit

General Description

The TC1272A are cost-effective system supervisor

circuits designed to monitor VDD in digital systems and

provide a reset signal to the host processor, when

necessary. No external components are required.

The reset output is driven active within 65 µsec (typ.)

of VDD falling through the reset voltage threshold.

RESET is maintained active for a minimum of

140 msec after VDD rises above the reset threshold.

The TC1272A has a complimentary output. The output

of the TC1272A is valid down to VDD = 1.2V. The

device is available in a 3-Pin SOT-23B package.

The TC1272A device is optimized to reject fast

transient glitches on the VDD line.

Package Type

TC1272A

VDD

RESET

Input

Processor

1

2

3

GND

VDD

RESET

GND

TC1272A

1

2

3

Note: 3-Pin SOT-23B is equivalent to

3-Pin SOT-23B*

JEDEC TO-236.

3-Pin Reset Monitor

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TC1272A Datasheet(PDF) 1 Page - Microchip Technology

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