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Texas Instruments MSP430FR5731IRHAT — Microcontrollers & Processors (MCU / MPU / DSP)

TI MSP430FR5731IRHAT 16-bit MCU, 24 MHz, 4KB FRAM, 40-VQFN

MPNMSP430FR5731IRHAT
NRND

Texas Instruments MSP430™ FRAM series, MSP430FR5731IRHAT, 16-bit MCU, 24MHz, 4KB (4K x 8) FRAM, 1K x 8 RAM, 14x10b ADC, I²C/SPI/UART, 40-VQFN (6x6), -40°C~85°C.

$3.0200Ref. price · indicative, final on quote
Texas Instruments MSP430FR5731IRHAT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430FR5731IRHAT specifications
ParameterValue
SeriesMSP430™ FRAM
MountingSurface Mount
Oscillator typeInternal
Program memory typeFRAM
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed24MHz
PackageTape & Reel (TR); Cut Tape (CT)
RAM size1K x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SCI, SPI, UART/USART
Number of i (O)32
Core processorMSP430 CPUXV2
Case40-VFQFN Exposed Pad
Data convertersA/D 14x10b
Program memory size4KB (4K x 8)

Product details

The MSP430FR5731IRHAT is a 16-bit MCU with a 24 MHz core, 4 KB FRAM, and 1 KB SRAM. It includes a 14-channel 10-bit ADC.

FRAM program memory — field updates without wear limits

4 KB of FRAM replaces both Flash and EEPROM in one block. It supports over 10¹⁵ write cycles — effectively unlimited for field firmware updates — and writes at bus speed without erase cycles. That means no wear-leveling code, no write-page buffers, and no 10 ms erase delay. For a product that ships with factory firmware and receives OTA patches in the field, FRAM simplifies the memory management layer.

NRND — plan the last-time buy now

TI lists the MSP430FR5731IRHAT as NRND.

Frequently asked questions

What is the closest pin-compatible alternative to MSP430FR5731IRHAT?

The base product number MSP430FR5731 covers a family of density variants sharing the same 40-VQFN footprint and peripheral set. A higher-FRAM-density sibling (e.g., MSP430FR5739 with 16 KB FRAM) is a drop-in replacement without a board spin, though the exact order code should be verified against the current TI product selector.

What is MSP430FR5731IRHAT's listed speed?

The core runs at 24 MHz, which is the maximum clock for the MSP430 CPUXV2 in this device.

What series does MSP430FR5731IRHAT belong to?

It is part of the MSP430™ FRAM series, TI's ultra-low-power MCU family with integrated ferroelectric RAM.