Microchip Processor Supervisor 3.08V max. 4-Pin SOT-143, MIC811TUY-TR [MIC811TUY-TR]; 598-437

The Microchip Microprocessor supervisory circuit designed to monitor power supply voltage and ensure reliable system resets. It asserts an active-low reset signal when the supply voltage drops below a preset threshold or when a manual reset input is triggered. The reset output remains active for at least 140 ms after voltage recovery, providing stable startup behaviour. With ultra-low supply current and a push-pull output stage that eliminates the need for external pull-up resistors, it's ideal for compact, low-power embedded systems.

5μA typical supply current

140ms minimum reset pulse width available

Manual reset input