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X40030 - Triple Voltage Monitor

Description

The X40030, X40031, X40034, X40035 combine power-on reset control, watchdog timer, supply voltage supervision, second and third voltage supervision, and manual reset, in one package.

This combination lowers system cost, reduces board space requirements, and increases reliability.

Features

  • Triple voltage detection and reset assertion.
  • Standard reset threshold settings see selection table on page 5.
  • Adjust low voltage reset threshold voltages using special programming sequence.
  • Reset signal valid to VCC = 1V.
  • Monitor three seperate voltages.
  • Fault detection register.
  • Selectable power on reset timeout (0.05s, 0.2s, 0.4s, 0.8s).
  • Selectable watchdog timer interval (25ms, 200ms, 1.4s or off).
  • Debounced manua.

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Datasheet preview – X40030

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Full PDF Text Transcription

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® X40030, X40031, X40034, X40035 Data Sheet May 25, 2006 FN8114.1 PRELIMINARY Triple Voltage Monitor with Integrated CPU Supervisor FEATURES • Triple voltage detection and reset assertion —Standard reset threshold settings see selection table on page 5. —Adjust low voltage reset threshold voltages using special programming sequence —Reset signal valid to VCC = 1V —Monitor three seperate voltages • Fault detection register • Selectable power on reset timeout (0.05s, 0.2s, 0.4s, 0.8s) • Selectable watchdog timer interval (25ms, 200ms, 1.4s or off) • Debounced manual reset input • Low power CMOS —25µA typical standby current, watchdog on —6µA typical standby current, watchdog off • 400kHz 2-wire interface • 2.7V to 5.
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