Texas Instruments Stellaris ARM Cortex-M3 MCU LM3S102-IGZ20-C2, 32-bit single-core, 20 MHz, 8 KB Flash, 2 KB RAM, 18 I/O, I²C/SPI/SSI/UART, 48-VQFN, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 100 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 20MHz |
| Package | Tray |
| RAM size | 2K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 18 |
| Core processor | ARM® Cortex®-M3 |
| Case | 48-VFQFN Exposed Pad |
| Program memory size | 8KB (8K x 8) |
20 MHz Cortex-M3 delivers roughly 20 MIPS. Enough for a PID loop at a few kHz, polling UARTs or SPI.
Lifecycle entry shows eol_hot, indicating end-of-life announced. Official product status shows Active.
Yes, the part carries an eol_hot lifecycle indicator, meaning the manufacturer has announced end-of-life. The official product status shows Active, which may reflect remaining inventory or a last-time-buy period. For new designs, plan for a replacement.
Yes, the connectivity block includes I²C, Microwire, SPI, SSI, and UART/USART interfaces.