MAX6821 PDF Datasheet
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Description
This is Low-Voltage SOT23 P Supervisors with Manual Reset and Watchdog Timer. 19-1868; Rev 1; 1, 01
Low-Voltage SOT23 P Supervisors with Manual Reset and Watchdog Timer
General Description
The MAX6821 MAX6825 are low-voltage microprocessor ( P) 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 Threshold Suffix Guide). The MAX6821, MAX6822, and MAX6823 all.