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Texas Instruments MSP430F2131TPW — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments MSP430F2131TPW 16-bit MCU, 16 MHz

MPNMSP430F2131TPW
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Texas Instruments MSP430F2xx 16-bit MCU, MSP430F2131TPW, 16 MHz, 8 KB Flash (8K x 8 + 256B), 256 x 8 RAM, 16 I/O, Slope A/D, internal oscillator, 1.8V–3.6V, -40°C to 105°C, 20-TSSOP.

$3.5381Ref. price · indicative, final on quote
Texas Instruments MSP430F2131TPW datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MSP430F2131TPW specifications
ParameterValue
SeriesMSP430F2xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~105°C(TA)
Speed16MHz
PackageTube
RAM size256 x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
Number of i (O)16
Core processorMSP430 CPU16
Case20-TSSOP (0.173\", 4.40mm Width)
Data convertersSlope A/D
Program memory size8KB (8K x 8 + 256B)

Product details

It runs at 16 MHz and carries 8 KB of Flash program memory (8K x 8 plus 256 bytes) with 256 x 8 bytes of RAM — a combination that targets small-footprint, low-power embedded control.

256 bytes of RAM — the hard constraint

With only 256 bytes of RAM (organized as 256 x 8), this part demands disciplined variable allocation. It can handle small state machines, register-based sensor calibration, and simple communication buffers, but any data logging, packet queuing, or RTOS context storage will overflow the available memory. The 8 KB Flash is generous for the firmware image, but the RAM ceiling is the real limiter in application design.

For dual-sourcing resilience, the MSP430F2132 (same 20-TSSOP footprint, double the Flash and RAM) is a pin-compatible upgrade path if the application needs more headroom.

Frequently asked questions

Can MSP430F2131TPW be used with a 3.3V supply?

Yes.

What is the closest pin-compatible alternative to MSP430F2131TPW?

The MSP430F2132 is a pin-compatible upgrade in the same 20-TSSOP package, offering 16 KB Flash and 512 bytes of RAM while keeping the same 16 MHz core, peripheral set, and supply range. It is a direct drop-in replacement for designs that need more memory headroom.