The MSP430FR604x and MSP430FR504x ultra-low-power microcontrollers feature different sets of peripherals. The architecture, combined with seven low-power modes, is optimized to achieve extended battery life for example in portable measurement applications. The devices features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency.

The MSP430FR604x and MSP430FR504x MCUs feature an ultrasonic sensing solution (USS) module, a low-energy accelerator (LEA), up to six 16-bit timers, up to six eUSCIs that support UART, SPI, and I²C, a comparator, a hardware multiplier, an AES accelerator, a 6-channel DMA, an RTC module with alarm capabilities, up to 57 I/O pins, and a high-performance 12-bit ADC. The MSP430FR604x MCUs also include an LCD controller module with contrast control for displays with up to 248 segments.