Texas Instruments Stellaris ARM Cortex-M3S 100 series 32-bit MCU, LM3S102-EGZ20-C2, 20 MHz core, 8 KB Flash, 2 KB RAM, 18 I/O, I²C/SPI/UART, -40 to 105°C, 48-VFQFN exposed pad.
| 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~105°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) |
It carries 8 KB Flash and 2 KB RAM, with 18 I/O lines and I²C, SPI, UART interfaces.
At 20 MHz, this Cortex-M3 executes single-cycle multiply and hardware divide. The 8 KB Flash limits firmware to bootloaders or sensor fusion; the 2 KB RAM caps data buffers.
That discrepancy means the part may be in a last-time-buy window. We source it through independent distribution and quote to order against an RFQ.
The ARM Cortex-M3 core runs at 20 MHz, with single-cycle multiply and hardware divide for efficient control-loop execution.
It is rated from -40°C to 105°C, making it suitable for industrial and automotive under-hood environments.