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CAT872 - Dual Input Reset Generator

Download the CAT872 datasheet PDF. This datasheet also covers the CAT871 variant, as both devices belong to the same dual input reset generator family and are provided as variant models within a single manufacturer datasheet.

Description

CAT871, CAT872 are dual input reset generators designed to restart microprocessor and microcontroller based systems when the watchdog timer or other resetting mechanisms have become disabled or failed.

Features

  • Operate on 1.65 V to 5.5 V Power Supplies.
  • Ultra Low Quiescent Current: 10 nA (typical).
  • Schmitt Trigger Inputs.
  • 8 Factory Preset Delay Times from 0.5 s to 5 s to Choose From.
  • Small mLLGA.
  • 6 Package: 1.45 x 1.0 x 0.4 mm.
  • These Devices are Pb.
  • Free, Halogen Free/BFR Free and are RoHS Compliant Typical.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CAT871-ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CAT872
Manufacturer onsemi
File Size 220.40 KB
Description Dual Input Reset Generator
Datasheet download datasheet CAT872 Datasheet

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Full PDF Text Transcription

Click to expand full text
CAT871, CAT872 Dual Input Reset Generator Description CAT871, CAT872 are dual input reset generators designed to restart microprocessor and microcontroller based systems when the watchdog timer or other resetting mechanisms have become disabled or failed. CAT871, CAT872 monitor two inputs and output an active low reset pulse after both inputs have been active (logic low) for a factory preset minimum time. The reset pulse width is 2.2 ms for CAT871 and 70 ms for CAT872. Releasing either input from its active state before the minimum timeout period resets the internal timer and both inputs must return to being active before the timer will restart with a fresh count down.
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