FRAM-based 16-bit MCU for low-power instrumentation
Its program memory is 32 KB of FRAM — a non-volatile memory that writes at near-SRAM speed and supports 10^15 write cycles, so you can treat it like a unified memory for code and data without worrying about wear-leveling.
FRAM vs Flash — what the memory type means for firmware updates and data logging
Unlike conventional Flash-based MCUs, the 32 KB FRAM on this part writes at bus speed with no erase-before-write penalty. That lets you store calibration constants, configuration tables, or sensor logs directly in program memory without a separate EEPROM or wear-leveling algorithm. For a design that logs data every second over a ten-year life, FRAM eliminates the 100k-cycle endurance ceiling that Flash imposes. The 2K x 8 RAM is available for stack and scratchpad, but for most data-acquisition tasks you can map variables directly into the FRAM region and keep the RAM free for interrupt-heavy processing.
That means it runs directly off a 3.3 V rail without an external LDO, and can also operate from a 1.8 V rail in deeply battery-powered designs. The brown-out detect (BOD) and POR peripherals keep the core safe during power-up and brown-out events — no external supervisor needed for most applications.
Package and footprint — 56-TSSOP with 0.65 mm pitch
The 56-TSSOP footprint is common across the MSP430FR69xx family, so a board layout can be reused for different memory-density variants.