Texas Instruments MSP430F2xx series 16-bit MCU, MSP430F2101IDW, 16MHz core, 1KB Flash, 128 x 8 RAM, 16 I/O, 20-SOIC, -40°C to 85°C.
| 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~85°C(TA) |
| Speed | 16MHz |
| Package | Tube |
| RAM size | 128 x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of i (O) | 16 |
| Core processor | MSP430 CPU16 |
| Case | 20-SOIC (0.295\", 7.50mm Width) |
| Data converters | Slope A/D |
| Program memory size | 1KB (1K x 8 + 256B) |
Its 16 MHz core speed drives the 1 KB Flash program memory and 128 x 8 RAM — a combination that fits a single control loop, a few sensor reads, and a simple communication protocol, but leaves no room for a real-time OS or large data buffers. The 16 I/O lines and integrated peripherals — brown-out detect/reset, POR, PWM, and watchdog timer — let it handle switch debouncing, LED dimming, and basic supervisory tasks without external glue.
Both are 16-bit MSP430F2xx MCUs in a 20-SOIC package, but the MSP430F2101IDW offers 1 KB Flash and 128 x 8 RAM, while the MSP430F2013IDW typically provides 2 KB Flash and 128 B RAM — the memory difference is the primary deciding factor for firmware size. The peripheral set and pinout are similar across the family.