MSP430FR21xx devices are part of the MSP430™ microcontroller (MCU)
value line sensing portfolio. This ultra-low-power, low-cost MCU family offers memory sizes from
0.5KB to 4KB of FRAM unified memory with several package options including a small 3-mm×3-mm VQFN
package. The architecture, FRAM, and integrated peripherals, combined with extensive low-power
modes, are optimized to achieve extended battery life in portable, battery-powered sensing
applications. MSP430FR2000 and MSP430FR21xx devices offer a migration path for 8-bit designs to
gain additional features and functionality from peripheral integration and the data-logging and
low-power benefits of FRAM. Additionally, existing designs using MSP430G2x MCUs can migrate to the
MSP430FR2000 and MSP430F21xx family to increase performance and get the benefits of FRAM.
The MSP430FR2000 and MSP430FR21xx MCUs feature a powerful 16-bit RISC CPU, 16-bit
registers, and a constant generator that contribute to maximum code efficiency. The digitally
controlled oscillator (DCO) also allows the device to wake up from low-power modes to active mode
typically in less than 10 µs. The feature set of this MCU meets the needs of applications ranging
from appliance battery packs and battery monitoring to smoke detectors and fitness
The MSP ultra-low-power (ULP) FRAM microcontroller platform combines uniquely embedded
FRAM and a holistic ultra-low-power system architecture, allowing system designers to increase
performance while lowering energy consumption. FRAM technology combines the low-energy fast writes,
flexibility, and endurance of RAM with the nonvolatile behavior of flash.
MSP430FR2000 and MSP430FR21x MCUs are supported by an extensive hardware and software
ecosystem with reference designs and code examples to get your design started quickly. Development
kits include the MSP-EXP430FR2311 and
MSP430FR4133 LaunchPad™ development kit and the
MSP‑TS430PW20 20-pin target development
board. TI also provides free MSP430Ware™ software, which is available as a component of
Studio™ IDE desktop and cloud versions within
TI Resource Explorer. The MSP430 MCUs are also
supported by extensive online collateral, training, and online support through the
E2E™ Community Forum.
For complete module descriptions, see the MSP430FR4xx and MSP430FR2xx Family Users Guide.