Texas Instruments MSP430G2xx, MSP430G2152IRSA16T, 16-Bit MCU, 16MHz, 1KB Flash, 128 x 8 RAM, 10 I/O, 8x10b ADC, I²C/SPI/USI, 1.8V-3.6V, -40°C to 85°C, 16-QFN.
| Parameter | Value |
|---|---|
| Series | MSP430G2xx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 16MHz |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| RAM size | 128 x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, SPI, USI |
| Number of i (O) | 10 |
| Core processor | MSP430 CPU16 |
| Case | 16-VQFN Exposed Pad |
| Data converters | A/D 8x10b |
| Program memory size | 1KB (1K x 8) |
It runs at 16 MHz, which is the typical ceiling for this value-line tier — enough for sensor polling, serial protocol handling, and control loops that don't need a Cortex-M0+ clock rate. The 1 KB Flash and 128 bytes of RAM mean firmware has to be tight: no room for a full RTOS or large lookup tables.
The 10 general-purpose I/O lines are enough for a few buttons, LEDs, and a serial bus. Connectivity covers I²C, SPI, and USI, which handles both synchronous and asynchronous serial links.
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