16 MHz FRAM MCU – unified memory and low-power fit
The MSP430FR2433IYQWR: Its program memory is 15.5 KB of FRAM, which combines the non-volatility of Flash with the write speed and endurance of RAM, and it also carries 4K x 8 of SRAM.
Package and mounting – 24-DSBGA with 0.4 mm pitch
This MCU comes in a 24-UFBGA / DSBGA package (supplier device package 24-DSBGA). Surface-mount only.
This part is available to order through independent distribution channels. The 24-DSBGA package is less common than the TSSOP or QFN variants in the MSP430FR2433 family, so lead time may vary — a quick RFQ check is the practical step before committing the BOM line.