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ASM161 - uP Supervisory Circuit

General Description

The ASM161 and ASM162 are cost effective, low power supervisory circuits that microprocessor, microcontroller and digital systems.

If the power supply drops below the reset threshold level, a reset is asserted and remains asserted for atleast 800ms after VCC has risen above the reset threshold.

Key Features

  • monitor power supplies in.
  • Edge triggered manual reset input single pulse output 49µS minimum MR disable period after reset CMOS/TTL logic or switch interface Debounced input Low supply current extends battery life.
  • 6µA / 15µA typ/max at 5.5V.
  • 4.5µA / 10µA typ/max at 3.6V Long reset period.
  • 0.8 sec minimum, 2 sec maximum Two reset polarity options.
  • ASM161: Active LOW, open-drain.
  • ASM162: Activ.

📥 Download Datasheet

Datasheet Details

Part number ASM161
Manufacturer Alliance Semiconductor
File Size 261.48 KB
Description uP Supervisory Circuit
Datasheet download datasheet ASM161 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 October 2003 rev 1.0 ASM161 / ASM162 µP Supervisory Circuit Key Features monitor power supplies in • • • • • • Edge triggered manual reset input single pulse output 49µS minimum MR disable period after reset CMOS/TTL logic or switch interface Debounced input Low supply current extends battery life • 6µA / 15µA typ/max at 5.5V • 4.5µA / 10µA typ/max at 3.6V Long reset period • 0.8 sec minimum, 2 sec maximum Two reset polarity options • ASM161: Active LOW, open-drain • ASM162: Active HIGH Pinout matches the AS811/812 Small 4-Pin SOT-143 package Two temperature ranges: 00 to 700c and -400c to +850c General Description The ASM161 and ASM162 are cost effective, low power supervisory circuits that microprocessor, microcontroller and digital systems.