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Texas Instruments MSP430F1232IPWR — Microcontrollers & Processors (MCU / MPU / DSP)

MSP430F1232IPWR 16-bit MCU, 8KB Flash, 8 MHz, 28-TSSOP

MPNMSP430F1232IPWR
Active

Texas Instruments MSP430x1xx MSP430F1232IPWR, 16-bit MCU, MSP430 CPU16 core, 8 MHz, 8KB Flash, 256 x 8 RAM, 22 I/O, SPI, UART/USART, 8x10b ADC, 1.8V to 3.6V, -40°C to 85°C, 28-TSSOP.

$6.9100Ref. price · indicative, final on quote
Texas Instruments MSP430F1232IPWR datasheet (PDF)
Packaging28-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
SeriesMSP430x1xx
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MSP430F1232IPWR specifications
ParameterValue
SeriesMSP430x1xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed8MHz
PackageTape & Reel (TR); Cut Tape (CT)
RAM size256 x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivitySPI, UART/USART
Number of i (O)22
Core processorMSP430 CPU16
Case28-TSSOP (0.173\", 4.40mm Width)
Data convertersA/D 8x10b
Program memory size8KB (8K x 8 + 256B)

Product details

256 bytes RAM — the real constraint on firmware complexity

With 256 x 8 bits of RAM, every byte counts. The stack, global variables, and any buffering for SPI or UART transfers all share this pool. A typical firmware loop for reading the ADC, scaling the result, and sending it out over UART fits easily, but avoid dynamic allocation or large lookup tables. The 8 KB Flash is generous for the code space — the RAM is the tighter ceiling.

Industrial temperature rating and package reality

It's MSL 1 per TI's standard — no bake required before reflow if the sealed bag is intact. The 22 I/O lines are available on this 28-pin package, which is enough for a keypad, a small LCD segment driver, and a couple of sensor inputs.

TI continues to manufacture the MSP430x1xx series, and this part is available through franchised distribution.

Frequently asked questions

What programmer is used for MSP430F1232IPWR?

The MSP430F1232IPWR uses the standard TI Spy-Bi-Wire (SBW) or JTAG debug interface. Common programmers include the TI MSP-FET430UIF, the MSP-FET, and third-party tools like the Olimex MSP430-JTAG-TINY. The SBW interface only needs two signals (SBWTDIO and SBWTCK) plus Vcc and GND, which is convenient for in-circuit programming on a production board.

Can MSP430F1232IPWR be replaced with MSP430F1232?

Yes, the MSP430F1232IPWR is a specific ordering variant of the base part MSP430F1232. The 'IPWR' suffix indicates the 28-TSSOP package on Tape & Reel. The base part number MSP430F1232 covers the same die; the difference is only in packaging and shipping format. If your board is laid out for a 28-TSSOP, either the IPWR (reel) or the IPW (tube) variant will fit.

What is the equivalent of MSP430F1232IPWR?

Within the MSP430x1xx family, the MSP430F1232IPWR is the 8 KB Flash, 256-byte RAM, 8 MHz variant. A close functional equivalent with more memory is the MSP430F133IPWR (8 KB Flash, 256 bytes RAM, same peripherals). For a different architecture, the TI C2000 F280041PZQR is a 32-bit C28x core at 100 MHz with more RAM and ADC resolution, but it is not pin-compatible and requires a different supply voltage (1.14 V core). The MSP430F1232IPWR has no direct pin-compatible second source outside TI's own MSP430x1xx series.