Texas Instruments MSP430P112IDW, MSP430x1xx series, 16-bit MCU, 8 MHz, 4 KB OTP, 256 x 8 RAM, 14 I/O, 20-SOIC wide, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | MSP430x1xx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | OTP |
| Voltage - supply (Vcc (Vdd)) | 2.7V ~ 5.5V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 8MHz |
| Package | Tube |
| RAM size | 256 x 8 |
| Core size | 16-Bit |
| Peripherals | POR, PWM, WDT |
| Number of i (O) | 14 |
| Core processor | MSP430 CPU16 |
| Case | 20-SOIC (0.295\", 7.50mm Width) |
| Program memory size | 4KB (4K x 8) |
4 KB program memory is one-time programmable. That locks the BOM to a fixed firmware image — no OTA, no reflash, no bug fix after the part leaves the programmer.
20-SOIC wide body (7.50 mm width). Hand-solderable with a fine-tip iron; no hot-air station required.
TI's MSP430F1xx Flash-based MCUs in the same 20-SOIC package are pin-compatible and offer in-system reprogrammability. The exact replacement depends on your required Flash and RAM size; check the MSP430F1101A or MSP430F1121A as starting points.
The core runs at 8 MHz. That clock rate sets the instruction cycle time for timing-critical loops and peripheral baud rates.
It belongs to the MSP430x1xx series, TI's baseline 16-bit ultra-low-power MCU family with the MSP430 CPU16 core.