16-bit MSP430 core with 2 KB Flash — the low-power controller for sensor and I²C/SPI nodes
It runs at 16 MHz and carries 2 KB of program Flash (2K x 8 plus 256 B) and 128 x 8 bytes of RAM — a memory footprint sized for simple control loops, sensor readout, and I²C or SPI communication without external memory.
2 KB Flash and 128 B RAM — what fits and what doesn't
With 2 KB of program Flash and 128 bytes of RAM, this MCU is not a general-purpose application processor. It targets firmware that fits in a few hundred instructions — state machines for I²C temperature sensors, SPI DAC configuration, or PWM fan control. The 256 B information memory segment (part of the 2 KB) can store calibration constants or bootloader flags. If your code exceeds 2 KB, step up to the MSP430F2xx parts with 4 KB or 8 KB Flash in the same 16-QFN footprint.
16-QFN with exposed pad — footprint and thermal notes
The 16-VQFN Exposed Pad package (supplier device package 16-QFN, 4x4 mm) is a compact surface-mount option. Reflow profile follows standard lead-free (ROHS3 compliant) profiles. The 10 general-purpose I/O pins are multiplexed with the ADC, I²C, and SPI peripherals, so pin assignment needs to be checked against the peripheral map before layout.
The series MSP430F2xx remains a supported TI portfolio, so PCN notifications are published through the standard TI change-notification system.