MAX6821 Datasheet PDF – Microprocessor Supervisor

Part Number: MAX6821

Function: Microprocessor Supervisor with Manual Reset and Watchdog Timer

Package: SOT23-5 Type

Manufacturer: Maxim Integrated


MAX6821 datasheet



The MAX6821 thru MAX6825 are low-voltage microprocessor (µP) supervisory circuits that combine voltage monitor ing, 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 VCCrises 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 VCCdown to +1.0V.


1. 140ms (min) Reset Timeout Delay

2. 1.6s Watchdog Timeout Period

3. Manual Reset Input

4. Immune to Short Negative VCC Transients

MAX6821 Datasheet PDF Download

MAX6821 pdf

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