1-channel voltage supervisor for 5V rails
The Maxim Integrated MAX6314US46D3+T is a simple reset/power-on reset supervisor that monitors a single voltage rail and asserts an active-low reset when the supply drops below the 4.63V threshold. The bidirectional output allows the reset line to be driven low by an external source — useful for manual reset buttons or daisy-chaining multiple supervisors. The part is in a SOT-143-4 surface-mount package.
It is ROHS3 compliant. No last-time-buy or discontinuation notice is in effect.
Bidirectional output — reset architecture flexibility
The bidirectional output is a key differentiator versus simple push-pull or open-drain supervisors. It means the reset pin can be driven low by an external signal (e.g., a manual reset button, another supervisor, or a watchdog timer) without needing an external AND gate. This simplifies board layout and reduces component count in multi-supervisor or manual-reset designs. The output is active low, so it pulls low when the monitored voltage falls below threshold and releases when the voltage recovers and the timeout expires.