1 Features
• Embedded microcontroller
– 16-bit RISC architecture up to 16 MHz
– Wide supply voltage range from 3.6 V down to
1.8 V (minimum supply voltage is restricted by
SVS levels, see the SVS specifications)
• Optimized low-power modes (at 3 V)
– Active mode: 120 μA/MHz
– Standby
• LPM3.5 with VLO: 1 μA
• Real-time clock (RTC) counter (LPM3.5 with
32768-Hz crystal): 1 μA
– Shutdown (LPM4.5): 34 nA without SVS
• High-performance analog
– 8-channel 10-bit analog-to-digital converter
(ADC)
• Integrated temperature sensor
• Internal 1.5-V reference
• Sample-and-hold 200 ksps
– Enhanced comparator (eCOMP)
• Integrated 6-bit DAC as reference voltage
• Programmable hysteresis
• Configurable high-power and low-power
modes
• Low-power ferroelectric RAM (FRAM)
– Up to 3.75KB of nonvolatile memory
– Built-in error correction code (ECC)
– Configurable write protection
– Unified memory of program, constants, and
storage
– 1015 write cycle endurance
– Radiation resistant and nonmagnetic
• Intelligent digital peripherals
– One 16-bit timer with three capture/compare
registers (Timer_B3)
– One 16-bit counter-only RTC counter
– 16-bit cyclic redundancy checker (CRC)
• Enhanced serial communications
– Enhanced USCI A (eUSCI_A) supports UART,
IrDA, and SPI
• Clock system (CS)
– On-chip 32-kHz RC oscillator (REFO)
– On-chip 16-MHz digitally controlled oscillator
(DCO) with frequency-locked loop (FLL)
• ±1% accuracy with on-chip reference at
room temperature
– On-chip very-low-frequency 10-kHz oscillator
(VLO)
– On-chip high-frequency modulation oscillator
(MODOSC)
– External 32-kHz crystal oscillator (LFXT)
– Programmable MCLK prescalar of 1 to 128
– SMCLK derived from MCLK with programmable
prescalar of 1, 2, 4, or 8
• General input/output and pin functionality
– 12 I/Os on 16-pin package
– 8 interrupt pins (4 pins of P1 and 4 pins of P2)
can wake MCU from LPMs
– All I/Os are capacitive touch I/Os
• Development tools and software (also see Tools
and Software)
– Free professional development environments
– Development kits
• MSP-TS430PW20
• MSP‑FET430U20
• MSP‑EXP430FR2311
• MSP‑EXP430FR4133
• Family members (also see Device Comparison)
– MSP430FR2111: 3.75KB of program FRAM,
1KB of RAM
– MSP430FR2110: 2KB of program FRAM,
1KB of RAM
– MSP430FR2100: 1KB of program FRAM,
512 bytes of RAM
– MSP430FR2000: 0.5KB of program FRAM,
512 bytes of RAM
• Package options
– 16-pin: TSSOP (PW16)
– 24-pin: VQFN (RLL)

2 Applications
• Appliance battery packs
• Smoke and heat detectors
• Door and window sensors
• Lighting sensors
• Power monitoring
• Personal care electronics
• Portable health and fitness devices

3 Description
MSP430FR2000 and 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 accessories.
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
Code Composer Studio™ IDE desktop and cloud versions within TI Resource Explorer. MSP430 MCUs are also
supported by extensive online collateral, such as our housekeeping example series, MSP Academy training, and
online support through the TI E2E™ support forums.
For complete module descriptions, see the MSP430FR4xx and MSP430FR2xx Family User's Guide.