Texas Instruments MSP430x1xx series, MSP430F1222IDW, 16-bit MCU, 8 MHz, 4 KB Flash, 256 x 8 RAM, SPI, UART, 22 I/O, 8x10b ADC, 1.8 V to 3.6 V supply, -40°C to 85°C, 28-SOIC.
| Parameter | Value |
|---|---|
| Series | MSP430x1xx |
| 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 | 8MHz |
| Package | Tube |
| RAM size | 256 x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | SPI, UART/USART |
| Number of i (O) | 22 |
| Core processor | MSP430 CPU16 |
| Case | 28-SOIC (0.295\", 7.50mm Width) |
| Data converters | A/D 8x10b |
| Program memory size | 4KB (4K x 8 + 256B) |
SPI and UART/USART connectivity cover the common serial links.
The built-in brown-out detect and POR mean you don't need an external supervisor for basic reset — saves a component and a trace.
Yes. The IDW and IDWR share the same silicon and package; the only difference is the shipping medium — tube (IDW) versus tape-and-reel (IDWR). Firmware and footprint are identical.