4.63 V threshold — what it means for the rail
The MAX6316MUK46AY+T is a simple reset/power-on reset IC from Maxim Integrated. It monitors a single supply rail and asserts a reset signal when the voltage drops below 4.63 V. The reset output is active low and bidirectional, meaning it can both drive and be driven by other reset outputs on the same line — useful for synchronizing multiple ICs during power-up or brown-out events.
1 ms minimum timeout — sequencing implications
The reset timeout is 1 ms minimum. That is short — fine for fast-recovery supplies or processors that boot quickly, but if the downstream load has large decoupling caps that take longer to charge, the reset may de-assert before the rail is stable. For designs with heavy bulk capacitance, check the rise time against this window.
Temperature grade and environment
Rated for -40°C to 125°C (TA), this part covers industrial and extended-temperature environments — motor drives, outdoor telecom, engine-bay electronics. The SOT-23-5 package keeps board area small and is surface-mount friendly for automated assembly.