16KB FRAM, 24MHz — the MSP430FR2153TDBTR in context
FRAM is the headline feature here — it combines non-volatile storage with fast write speeds and near-infinite endurance, so you can treat it like a unified memory for both code and data without worrying about wear leveling or write-cycle budgets.
FRAM vs Flash — what the memory type means for the BOM
The 16KB FRAM program memory is the differentiator versus conventional Flash MCUs in the same price tier. FRAM writes at bus speed with no erase cycle, so firmware updates and data logging don't stall the core. For a design that stores calibration constants or runtime counters in the same memory space as code, FRAM eliminates the separate EEPROM or battery-backed SRAM line item. The 2K x 8 SRAM is modest — sized for register-heavy control loops rather than buffering large data frames — so plan your stack and DMA buffers accordingly.
Package and placement — 38-TSSOP
Housed in a 38-TSSOP (4.40mm width, 0.65mm pitch), this is a standard fine-pitch SSOP footprint that pick-and-place handles without trouble. MSL level is not listed in the record, but the TSSOP family typically runs MSL 1 or 2 — still, check the reel label before skipping the bake if the moisture barrier bag has been open. The 0.65mm pitch is tight enough that solder paste volume and stencil thickness matter; a 125µm stencil with area ratio above 0.66 keeps opens rare.
Lifecycle and sourcing
The base product number MSP430FR2153 covers a family of density and package variants, so if the 38-TSSOP doesn't fit your board, a pin-compatible sibling in the same series is worth checking.