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MM1142 - System Reset

General Description

Pin No.

Function TWD, TWR, TPR time setting pins.

Key Features

  • 1. Accurate voltage drop detection voltage 1. Low battery detection 2.2V±3% 2. Power supply voltage detection 2.0V±3% 3. Detection voltage error 0.2V±20mV 1-2 4. Hysteresis both 50mV typ. 2. Watchdog function stop pin (can be made to function only as reset IC during VCC rise) 3. Low current consumption 150µA typ. Package SOP-8C (MM1142XF).

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Datasheet Details

Part number MM1142
Manufacturer Mitsumi Electronics
File Size 161.69 KB
Description System Reset
Datasheet download datasheet MM1142 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com MITSUMI System Reset (with built-in watchdog timer) MM1142 System Reset (with built-in watchdog timer) Monolithic IC MM1142 Outline This IC was developed to drive low voltage batteries, and has a watchdog timer with built-in microcomputer reset voltage detection circuit and low battery detection circuit. A single reference voltage is used for low battery voltage detection and microcomputer reset voltage . detection, so detection voltage difference is uniform ( = . 0.2V). Further, there is a built-in watchdog timer for operation diagnosis, which prevents the system from running wild by generating an intermittent reset pulse during system mis-operation. Features 1. Accurate voltage drop detection voltage 1. Low battery detection 2.2V±3% 2.