The Texas Instruments MSP430 family of ultralow-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low power modes is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 5?μs.

The MSP430F643x series are microcontroller configurations with four 16-bit timers, a high performance 12-bit analog-to-digital (A/D) converter, two universal serial communication interfaces (USCI), hardware multiplier, DMA, real-time clock module with alarm capabilities, comparator, and up to 74?I/O pins.