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Texas Instruments MSP430F2122TRHBR — Microcontrollers & Processors (MCU / MPU / DSP)

TI MSP430F2122TRHBR 16-bit MCU, 16MHz, 4KB Flash, 512B RAM

MPNMSP430F2122TRHBR
Active

Texas Instruments MSP430F2xx series, MSP430F2122TRHBR, 16-bit MCU, 16MHz, 4KB Flash, 512 x 8 RAM, 24 I/O, I²C/SPI/UART, 1.8V-3.6V, -40°C to 105°C, 32-VQFN.

$2.5855Ref. price · indicative, final on quote
Texas Instruments MSP430F2122TRHBR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MSP430F2122TRHBR 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
PackageTape & Reel (TR); Cut Tape (CT)
RAM size512 x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SCI, SPI, UART/USART
Number of i (O)24
Core processorMSP430 CPU16
Case32-VFQFN Exposed Pad
Data convertersA/D 8x10b
Program memory size4KB (4K x 8 + 256B)

Product details

What this 16-bit MCU brings to a BOM

The MSP430F2122TRHBR: It packs 4KB of Flash program memory and 512 x 8 bytes of RAM, with 24 general-purpose I/O lines. The 8-channel 10-bit ADC handles analog inputs directly.

At 105°C the Flash retention and oscillator stability are guaranteed per the datasheet limits, so a motor-drive control loop or a LIN-bus node in a truck cab stays reliable through a hot soak.

Package and footprint — 32-VQFN with exposed pad

The QFN's edge castellations make manual inspection possible, but rework requires a hot-air station with a fine nozzle; the pad pitch is tight enough that solder bridging between adjacent pins is a real risk without a stencil.

TI lists the MSP430F2122TRHBR as Active. The base product number MSP430F2122 spans several package and temperature options, so if the VQFN reel runs short, the TSSOP or PDIP sibling might serve as a drop-in on a redesigned board, but the footprint differs.

Frequently asked questions

How much RAM does MSP430F2122TRHBR have?

512 bytes (512 x 8) of RAM. That is tight — a serial buffer, a few state variables, and a modest call stack fit, but any heavy data buffering or large lookup tables need to live in Flash or external memory.

How many I/Os does MSP430F2122TRHBR have?

24 general-purpose I/O lines are available on the 32-VQFN package. Some pins share functions with the ADC inputs and serial peripherals, so the usable count depends on which peripherals are enabled.

Does MSP430F2122TRHBR have I2C interface?

Yes, the connectivity block includes I²C, along with IrDA, LINbus, SCI, SPI, and UART/USART — all on the same module, so only one serial interface can be active at a time unless you bit-bang a second.