The TI MSP430FR688x and MSP430FR588x families of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals. The architecture, combined with seven low-power modes, is optimized to achieve extended battery life for example in flow metering applications. The devices features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency.
The MSP430FR688x and MSP430FR588x devices are microcontroller configurations with an extended scan interface (ESI) for background water, heat and gas volume metering together with up to five 16-bit timers, a comparator, eUSCIs that support UART, SPI, and I2C, a hardware multiplier, DMA, an RTC module with alarm capabilities, up to 83 I/O pins, and a high-performance 12-bit ADC. The MSP430FR698x devices also include an LCD module with contrast control for displays with up to 320 segments.