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Texas Instruments MSP430FR4131IG48R — Microcontrollers & Processors (MCU / MPU / DSP)

MSP430FR4131IG48R 16-bit MCU, 16 MHz, 4.5 KB FRAM, 48-TSSOP

MPNMSP430FR4131IG48R
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Texas Instruments MSP430FR4131IG48R, 16-bit MSP430 CPU16 MCU, 16 MHz, 4.5 KB FRAM, 512 x 8 SRAM, 44 I/O, 8x10b ADC, LCD driver, I²C/SPI/UART, 1.8 V to 3.6 V, -40°C to 85°C, 48-TSSOP.

$1.1810Ref. price · indicative, final on quote
Texas Instruments MSP430FR4131IG48R datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430FR4131IG48R specifications
ParameterValue
SeriesMSP430™ FRAM
MountingSurface Mount
Oscillator typeInternal
Program memory typeFRAM
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTape & Reel (TR)
RAM size512 x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, LCD, POR, PWM, WDT
ConnectivityI²C, IrDA, SCI, SPI, UART/USART
Number of i (O)44
Core processorMSP430 CPU16
Case48-TFSOP (0.240\", 6.10mm Width)
Data convertersA/D 8x10b
Program memory size4.5KB (4.5K x 8)

Product details

FRAM instead of Flash — what it changes for the BOM

Its program memory is 4.5 KB of FRAM — not Flash — which means writes are nearly unlimited (10^15 cycle endurance) and occur at full speed without an erase step. For a firmware-update strategy or data-logging application, this eliminates the wear-leveling and sector-management overhead that Flash-based MCUs require. The 512 x 8 SRAM supports a small stack and variable workspace; the 44 I/O lines include a segment LCD driver, making this a natural fit for metering, portable instrumentation, and human-machine-interface panels where the display is a segment LCD rather than a graphics panel.

Frequently asked questions

What is FRAM in MSP430 microcontrollers?

FRAM (Ferroelectric Random Access Memory) is a non-volatile memory technology used in place of Flash. It offers much higher write endurance (10^15 cycles), faster write speeds (no erase needed), and lower write power. In the MSP430FR4131IG48R, the 4.5 KB program memory is FRAM, which simplifies firmware update handling and extends the product's useful life in data-intensive applications.

What is the closest pin-compatible alternative to MSP430FR4131IG48R?

Within the MSP430FR413x family, parts with the same 48-TSSOP package and pinout differ primarily in FRAM and SRAM size. The MSP430FR4132 and MSP430FR4133 offer larger memory options while remaining footprint-compatible. For an exact pin-compatible drop-in with the same peripheral set, check the base product number MSP430FR4131 — the IG48R suffix denotes the 48-TSSOP package and Tape & Reel. No exact second-source from another manufacturer exists for this specific order code.