MSP430FR215x / MSP430FR235x Microcontrollers Texas Instruments MSP430FR215x / MSP430FR235x Microcontrollers (MCUs) are ultra-low-power low-cost devices for sensing and measurement applications. The MSP430FR235x MCUs integrate four configurable signal-chain modules called smart analog combos, each of which can be used as a 12-bit DAC or a configurable programmable-gain Op-Amp. These can be used to meet the specific needs of a system while reducing the BOM and PCB size. The device also includes a 12-bit SAR ADC and two comparators.