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MAX6869 - Nanopower uP Supervisory Circuits

This page provides the datasheet information for the MAX6869, a member of the MAX6854 Nanopower uP Supervisory Circuits family.

Description

The MAX6854/MAX6855/MAX6856/MAX6858/MAX6860

MAX6869 ultra-low-current (170nA, typ) microprocessor (µP) supervisory circuits combine voltage monitoring, watchdog timer, and manual reset input functions in a 5pin SOT23 package.

Features

  • Ultra-Low 170nA (typ) Supply Current.
  • Reset Thresholds from +1.575V to +4.625V in Approximately 100mV Increments.
  • Six Minimum Reset Timeout Period Options from 10ms to 1200ms.
  • Manual Reset Option.
  • Watchdog Timer Option.
  • Pin-Selectable 10ms/150ms (min) Reset Timeout Period (MAX6861/MAX6862/MAX6863).
  • Immune to Short VCC Transients.
  • Guaranteed Reset Valid to VCC = +1.1V.
  • Three Reset Output Options: Push-Pull RESET Pus.

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Full PDF Text Transcription

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19-3139; Rev 2; 9/04 Nanopower µP Supervisory Circuits with Manual Reset and Watchdog Timer General Description The MAX6854/MAX6855/MAX6856/MAX6858/MAX6860– MAX6869 ultra-low-current (170nA, typ) microprocessor (µP) supervisory circuits combine voltage monitoring, watchdog timer, and manual reset input functions in a 5pin SOT23 package. These devices assert a reset signal whenever the monitored voltage drops below the factorytrimmed reset threshold voltage, manual reset is asserted, or the watchdog timer expires. The reset output remains asserted for a minimum timeout period after VCC rises above the reset threshold and manual reset is deasserted. Factory-trimmed reset threshold voltages are offered from +1.575V to +4.625V in approximately 100mV increments (see Threshold Suffix Guide).
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