Voltage threshold and reset timing for rail supervision
The MAX6384XS22D3+: After the supply rises above the threshold, the reset output stays asserted for a minimum of 140 ms before releasing. This timeout gives the core supply and oscillator time to stabilise before the processor starts executing code.
The 2.19V threshold suits 2.5V or 3.3V rails where the supervisor must trip before the core logic enters an undefined state. The small body and 0.65 mm lead pitch fit tight layouts near the supervised IC, keeping the reset trace short and reducing noise coupling onto the sense line.
The bulk packaging means the part ships in tubes or trays rather than tape-and-reel, which may affect pick-and-place handling for high-volume lines.