150ms reset timeout — why it matters
The 150ms minimum reset timeout ensures the processor stays in reset long enough for the main supply and any downstream LDOs to reach regulation after a brownout or power-on event. If the timeout is too short, the CPU may start executing with an unstable clock or marginal supply voltage, causing erratic behaviour. This part's 150ms window is a standard choice for most MCUs and MPUs; designs with slow-start regulators or large bulk capacitance may need a longer timeout — verify against the processor's own power-on reset requirements.
Active-high reset — compatibility check
The reset output is active high. Many processors expect an active-low reset, so confirm the polarity of your CPU's RESET pin. The open-drain output lets you pull up to any voltage up to the absolute maximum rating.
Lifecycle and sourcing
No pin-compatible second source is listed in the official cross-reference, so dual-sourcing requires a board-level qualification of any alternative.