140ms reset timeout — enough for most power-on settling
The minimum 140ms reset timeout gives the power supply and oscillator time to stabilise before the processor starts executing code. That is long enough for a typical linear regulator or a small DC-DC converter to reach steady state, but short enough that the system does not sit idle for a noticeable delay on power-up. If your design uses a slow-start supply or a large bulk capacitor, verify the ramp time does not exceed this window.
Active production — no LTB risk for new builds
The part is listed as Active in production. There is no last-time-buy notice or obsolescence risk for current designs. The part is RoHS non-compliant (contains lead).