116 KB Flash, 8 KB RAM, 16 MHz — the memory-and-speed envelope
The MSP430F2618TZQWR is a 16-bit MSP430 CPU16 microcontroller from the MSP430F2xx series, carrying 116 KB of program Flash and 8 KB of RAM on a 16 MHz core. The 116 KB Flash (organized as 116K x 8 plus 256 bytes) and 8K x 8 RAM define the application footprint — firmware, lookup tables, and a moderate heap fit within this boundary without external memory.
Analog and serial integration — 8×12b ADC, 2×12b DAC, multi-protocol serial
On-chip data converters include an 8-channel 12-bit A/D converter and a 2-channel 12-bit D/A converter, covering many mixed-signal control loops without an external converter. The 64 I/O lines provide enough GPIO for parallel buses, keypad matrices, and sensor interfaces alongside the serial peripherals. Serial connectivity spans I²C, SPI, UART/USART, IrDA, and LINbus — the LINbus support makes this part suitable for automotive body-control nodes that communicate on a LIN cluster, while the IrDA port handles infrared data links in handheld or industrial terminals.
Texas Instruments lists the MSP430F2618TZQWR as Obsolete. For a BOM line that depends on this exact MCU, the supply path runs through independent distribution — surplus inventory, last-time-buy leftovers, and broker channels. Quantities are lot-specific and confirmed at RFQ. The 113-ball VFBGA (Microstar Junior, 7×7 mm) package is the footprint that must be matched if a replacement is considered — a different BGA ball map or pitch means a board respin.