UM7027A Datasheet, PDF (5/8 Pages) Union Semiconductor, Inc. – Voltage Detector

UM70xxA
Applications Circuits
Microcomputer Reset Circuit
Normally a reset circuit is required to protect the microcomputer system from malfunctions due to
power fail or power line interruptions. The following examples show how different output
configurations perform a reset function in various systems.
NMOS open drain output application for separate power supply
UM70xxA
NMOS open drain output application with R-C Delay
UM70xxA
Power-on Reset Circuit
With several external components, the NMOS open drain type of the UM70xxA series can be used
to perform a power-on reset function as shown.
UM7044A
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http://www.union-ic.com Rev.04 Jul.2012
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