FRAM memory — why it matters for field-reliability
Its program memory is 15.5 KB of FRAM — not Flash — which means writes are faster, consume less power, and endure far more cycles (typically 10^15) than Flash. That makes it a strong pick for data-logging, metering, or any application where the firmware needs to update calibration constants or configuration tables in the field without wearing out the memory.
Package and supply — board-fit notes
Housed in a 48-TSSOP (6.10 mm wide, 0.240" pitch), surface-mount only. Internal oscillator means no external crystal needed for basic clocking, though the internal oscillator type is sufficient for most UART and SPI timing.
Lifecycle — no LTB worry
Listed as Active in production.