Texas Instruments MSP430F2xx series, MSP430F2122TRTVT, 16-bit MCU, 16MHz, 4KB Flash, 512 x 8 RAM, I²C/SPI/UART, 24 I/O, 1.8V-3.6V, -40°C to 105°C, 32-WQFN.
| Parameter | Value |
|---|---|
| Series | MSP430F2xx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 16MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 512 x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SCI, SPI, UART/USART |
| Number of i (O) | 24 |
| Core processor | MSP430 CPU16 |
| Case | 32-WFQFN Exposed Pad |
| Data converters | A/D 8x10b |
| Program memory size | 4KB (4K x 8 + 256B) |
The MSP430F2122TRTVT: The 32-WFQFN with exposed pad (5x5 mm body) keeps the footprint small.
The MSP430F2xx series has been a long-running TI portfolio, so PCN risk is low. No second-source alternate is officially cross-referenced, but the MSP430G2xxx family shares the same core and peripheral set — pin compatibility varies by package, so check the footprint before substituting.
The core runs at 16 MHz. At that speed the Flash requires one wait state inserted before the first instruction fetch; the MSP430 CPU16 handles this transparently, but firmware that times critical loops should account for the extra cycle on code fetches.
The MSP430G2xxx family uses the same CPU16 core and a similar peripheral set, but package options and pin assignments differ. The G2xxx parts are generally lower-cost and may omit some interfaces (e.g., LINbus). If you are considering a swap, compare the specific G2xxx variant's pinout against the 32-WQFN footprint of this part — they are not drop-in replacements without a board spin.
The full datasheet is published by Texas Instruments under the base product number MSP430F2122. It covers the electrical characteristics, timing diagrams, register map, and application notes for the entire MSP430F2xx family. The document is available from TI's website and through most distributor portals.