1 KB Flash — the real firmware budget
The 16 MHz clock gives you the throughput to run a 10-bit slope ADC conversion and update a PWM output in the same interrupt window. The scorch mark on a dead board tells you if the regulator or the MCU went first; with this part, the failure signature is usually a blown I/O pin from an overvoltage event, not a core fault.
If your application lives in a freezer or a hot engine bay, you need the extended-range sibling; this one stops at 85°C.
Active lifecycle — no LTB worry
The MSP430F2xx family has been a TI staple for over a decade; the toolchain and programmer support are mature and stable.