16 MHz Ultra-Low-Power Microcontroller with 4 KB FRAM, .5 KB SRAM, 60 IO, 10-bit ADC, LCD, IR Logic

16 MHz Ultra-Low-Power Microcontroller with 4 KB FRAM, .5 KB SRAM, 60 IO, 10-bit ADC, LCD, IR Logic - MSP430FR4131

Special Note

For MCUs with LCD support that offer more memory and AES256 encryptioning consider the MSP430FR6972 MCU family.


The TI MSP430 family of low-power microcontrollers consists of several devices that feature different sets of peripherals targeted for various applications. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active mode in less than 10 µs.


  • Embedded Microcontroller
    • 16-Bit RISC Architecture up to 16 MHz
    • Wide Supply Voltage Range From 1.8 V to 3.6 V
  • Optimized Low-Power Modes (at 3 V)
    • Active Mode: 126 µA/MHz
    • Standby Mode: <1 µA With Real-Time Clock (RTC) Counter and Liquid Crystal Display (LCD)
    • Shutdown (LPM4.5): 15 nA
  • Low-Power Ferroelectric RAM (FRAM)
    • Up to 15.5KB 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
    • IR Modulation Logic
    • Two 16-Bit Timers With Three Capture/Compare Registers Each (Timer_A3)
    • 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
    • Enhanced USCI B (eUSCI_B) Supports SPI and I2C
  • High-Performance Analog
    • 10-Channel 10-Bit Analog-to-Digital Converter (ADC)
      • Internal 1.5-V Reference
      • Sample-and-Hold 200 ksps
    • Low-Power LCD Driver
      • Supports up to 4×36- or 8×32-Segment LCD Configuration
      • On-Chip Charge Pump to Keep LCD Active in Standby Mode (LPM3.5)
      • Each LCD Pin Software Configurable as SEG or COM
      • Contrast Control From 2.6 V to 3.5 V by 0.06-V Steps
  • 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 (XT1)
    • 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
    • 60 I/Os on 64-Pin Package
    • 16 Interrupt Pins (P1 and P2) Can Wake up MCU From LPMs
    • All I/Os are Capacitive Touch I/O
  • Development Tools and Software
    • Free Professional Development Environments
    • Development Kit (MSP-TS430PM64D)
  • Family Members
    • MSP430FR4133: 15KB of Program FRAM + 512B of Information FRAM + 2KB of RAM
    • MSP430FR4132: 8KB of Program FRAM + 512B of Information FRAM + 1KB of RAM
    • MSP430FR4131: 4KB of Program FRAM + 512B of Information FRAM + 512B of RAM
  • Package Options
    • 64-Pin: LQFP (PM)
    • 56-Pin: TSSOP (G56)
    • 48-Pin: TSSOP (G48)

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Parametrics Compare all products in Value Line MCUs

Non-volatile Memory (KB)
ADC: Channels (#)
GPIO Pins (#)
Comparator Channels (#)
Package Group
Approx. Price (US$)
Timers - 16-bit
Bootloader (BSL)
Special I/O
Operating Temperature Range (C)
Package Size: mm2:W x L (PKG)
10-bit SAR    
0.95 | 1ku    
-40 to 85    
64LQFP: 144 mm2: 12 x 12(LQFP)
48TSSOP: 101 mm2: 8.1 x 12.5(TSSOP)
56TSSOP: 113 mm2: 8.1 x 14(TSSOP)    
Real-Time Clock    

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