SOT-23-5 supervisor with 2V threshold and 140ms timeout
The STM6822YWY6F: That 140ms minimum reset timeout is the period the downstream processor or logic sees as a clean, extended reset pulse after a brownout or power-on event — long enough for the supply to settle and the oscillator to stabilize before the core tries to execute code.
Package footprint and board-fit
Housed in a 5-pin SOT-23-5 (SC-74A) surface-mount package, the STM6822YWY6F occupies roughly 3×3 mm of board area. The pinout is standard for this supervisor type: VDD, GND, RESET (open-drain), and two threshold-setting pins (MR and GND). The open-drain output requires a pull-up resistor to the monitored rail or to the processor's I/O supply — typically 10 kΩ to 100 kΩ, depending on the rise-time budget and the downstream input capacitance.
Temperature grade and deployment context
The 2V threshold is a common trip point for 3.3V and 2.5V rails, where the supervisor must assert reset before the core supply drops below the processor's minimum operating voltage.
The SOT-23-5 footprint is a standard JEDEC MO-178 variant, so the land pattern is shared across multiple supplier supervisors.