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Texas Instruments MSP430FR5949IRHAR — Microcontrollers & Processors (MCU / MPU / DSP)

TI MSP430FR5949IRHAR 16-bit MCU, 64KB FRAM, 16 MHz, 40-VQFN

MPNMSP430FR5949IRHAR
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Texas Instruments MSP430FR5949IRHAR, MSP430™ FRAM series, 16-bit MCU, CPUXV2 core, 16 MHz, 64KB FRAM, 2K x 8 RAM, 33 I/O, 14x12-bit ADC, I²C/SPI/UART, 1.8V-3.6V, -40°C to 85°C, 40-VQFN (6x6 mm).

$6.3000Ref. price · indicative, final on quote
Texas Instruments MSP430FR5949IRHAR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430FR5949IRHAR 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); Cut Tape (CT)
RAM size2K x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI²C, IrDA, SCI, SPI, UART/USART
Number of i (O)33
Core processorMSP430 CPUXV2
Case40-VFQFN Exposed Pad
Data convertersA/D 14x12b
Program memory size64KB (64K x 8)

Product details

64 KB FRAM — the non-volatile memory that writes like RAM

Its defining feature is 64 KB of FRAM program memory — a non-volatile storage technology that combines the write speed and endurance of SRAM with the data retention of Flash. The FRAM is organized as 64K x 8 bits, and the part also carries 2K x 8 of conventional RAM for stack and scratchpad use. This makes the MSP430FR5949IRHAR a strong fit for applications that need frequent data logging, field-upgradeable firmware, or low-energy writes without the erase-cycle overhead of Flash.

Peripheral set for sensor-heavy designs

A 14-channel, 12-bit ADC handles multi-sensor acquisition without external converters — think temperature, pressure, and current sensing on one die. The 33 general-purpose I/O lines support parallel interfaces and keypad scanning.

The MSP430FR5949IRHAR comes in a 40-pin VFQFN with an exposed thermal pad (6x6 mm body). The package is surface-mount only, so hand-assembly requires a hot-air station or reflow oven.

This is a standard-production TI MSP430 part, so it is available through the usual distribution channels.

Frequently asked questions

What is the FRAM size and how is it organized in MSP430FR5949IRHAR?

The FRAM program memory is 64 KB, organized as 64K x 8 bits. There is also 2K x 8 of conventional SRAM for stack and variable storage. The FRAM offers near-SRAM write speed with non-volatile retention, so no separate EEPROM is needed for calibration constants or data logs.

Can I replace MSP430FR5949IRHAR with another MSP430 part?

Pin-compatible alternatives exist within the MSP430FR5949 family — parts with different FRAM densities (e.g., 32 KB or 128 KB variants) share the same 40-VQFN footprint and peripheral set. Check the base product number MSP430FR5949 for the density options.