MAX6824
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MAX6824

Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer

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Part Details
Part Models 2
1ku List Price Starting From $2.11
Features
  • Monitors +1.8V, +2.5V, +3.0V, +3.3V, +5.0V Supplies
  • 140ms (min) Reset Timeout Delay
  • 1.6s Watchdog Timeout Period (MAX6821/MAX6822/MAX6823/MAX6824)
  • Manual Reset Input (MAX6821/MAX6822/MAX6823/MAX6825)
  • Three Reset Output Options
    • Push-Pull Active-Low RESET
    • Push-Pull RESET
    • Open-Drain Active-Low RESET
  • Guaranteed Reset Valid to VCC = +1.0V
  • Immune to Short Negative VCC Transients
  • No External Components
  • Small 5-Pin SOT23 Packages
Additional Details
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The MAX6821—MAX6825 are low-voltage microprocessor (µP) supervisory circuits that combine voltage monitoring, watchdog timer, and manual reset input functions in a 5-pin SOT23 package. Microprocessor supervisory circuits significantly improve system reliability and accuracy compared to separate ICs or discrete components. These devices assert a reset signal whenever the monitored voltage drops below its preset threshold, keeping it asserted for a minimum timeout period after VCC rises above the threshold. In addition, a watchdog timer monitors against code execution errors. A debounced manual reset is also available. The MAX6821—MAX6825 monitor voltages from +1.8V to +5.0V. These outputs are guaranteed to be in the correct state for VCC down to +1.0V.

Nine preprogrammed reset threshold voltages are available (see the Threshold Suffix Guide). The MAX6821, MAX6822, and MAX6823 all have a manual reset input and a watchdog timer. The MAX6821 has push-pull RESET, the MAX6822 has open-drain active-low RESET, and the MAX6823 has push-pull active-low RESET. The MAX6824 has a watchdog timer and both push-pull active-low RESET and push-pull RESET. The MAX6825 has a manual reset input and both push-pull active-low RESET and push-pull RESET. The Selector Guide explains the functions offered in this series of parts.

Applications

  • Computers and Controllers
  • Critical µP Monitoring
  • Embedded Controllers
  • Intelligent Instruments
  • Portable Battery-Powered Equipment
  • Set-Top Boxes
Part Models 2
1ku List Price Starting From $2.11

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Jan 11, 2021

- 1703RN

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Feb 4, 2015

- 1341_CANCELLATION

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ASSEMBLY

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PRODUCTION

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PRODUCTION

Feb 4, 2015

- 1341_CANCELLATION

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