16 MHz MSP430 CPU16 with 92 KB flash
The MSP430F2617TZQW is a 16-bit microcontroller from the MSP430F2xx series, built around the MSP430 CPU16 core clocked at 16 MHz. The 92 KB on-chip flash and 8 KB RAM give enough headroom for a moderate control loop or sensor-fusion firmware stack without external memory.
113-ball BGA Microstar Junior — rework reality
This comes in a 113-VFBGA (7x7 mm Microstar Junior) package. That is a fine-pitch BGA with no visible leads — you are looking at a hot-air rework station and a stencil to place it. Not a field-swap part; plan for a reflow profile and a bake cycle if the moisture barrier has been breached. The 64 I/O pins route out through the BGA ball field, which means the PCB fan-out needs vias-in-pad or at least a 4-layer board to break out all signals cleanly.
Peripheral set and data converters
On-chip peripherals include I²C, SPI, UART/USART, IrDA, and LINbus for wired connectivity, plus a 12-bit ADC with 8 multiplexed channels and two 12-bit DACs. The DMA controller can move ADC results to RAM without CPU intervention, which matters for continuous sampling applications. Brown-out detection, POR, and a watchdog timer are built in — no external supervisor needed for basic reset handling in an industrial control board.
No pin-compatible direct replacement from TI is documented. If your BOM requires this exact order code, the supply path is the secondary market — expect to verify date codes and lot traceability at quote time.