FRAM memory: the reason to pick this MSP430
Its standout feature is 4 KB of FRAM program memory — non-volatile, fast-write, and rated for 10^15 read/write cycles, so you don't need wear-leveling or worry about write endurance in data-logging or configuration-storage tasks. The 1K x 8 RAM handles stack and scratchpad. This is a part for low-power, moderate-throughput control loops where flash write latency or endurance would be a problem.
17 I/O and serial interfaces in a 24-VQFN
The 24-VQFN package (4x4 mm) with exposed pad keeps the board footprint small — useful when the BOM has to fit a 25 mm round sensor housing or a cramped motor-drive PCB.
Brown-out detect and POR are integrated, so an external supervisor isn't needed for basic reset reliability.