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Supervisory Circuit

2013-06-0001

PT0195-4

06/17/13

1

PT7M1233/1233A

Features

 High accurate: 1.5% (25°C)

 Operating voltage range: 1.0V ~ 5.5V

 Operating temperature range: -40°C to + 85°C

 Detect voltage temperature characteristics: 2.5%

 TYP

 Output configuration: Bi-dir

 Reset timeout period: typical 200ms

Description

The PT7M1233/1233A series are designed to monitor

power supplies in µP and digital systems. They

provide excellent circuit reliability and low cost by

eliminating external components and adjustments.

The devices perform a single function: assert a reset

preset threshold. Reset remains asserted 200ms after

PT7M1233/1233A are bidirectional output, allowing it

to monitor a pushbutton on the reset output.

Pin Configuration

Pin Description

Name Type

Description

I/O

low. When other devices pull RST low, the reset condition occurs and will remain a reset timeout period at

least 200ms.

GND

P

Ground

VCC

P

Supply Voltage.

RST