SCLA061 March   2023 CD74HC4538 , CD74HC4538-Q1 , SN74LV123A , SN74LV123A-Q1


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  2.   Design Considerations
  3.   Recommended Parts

System controllers that are critical to system operation can use a monostable multivibrator pair to detect if the system has become unresponsive and reset the system. By sending a pulse every few miliseconds to a multivibrator pair, a reset pulse is sent if the signal stays at a constant high or low.

GUID-20230316-SS0I-SSGB-KSMN-PV6XWRWSNCRS-low.svg Example System Diagram With Pull-up Resistor and Falling-edge Trigger