Texas Instruments Stellaris ARM Cortex-M3S 800 series LM3S818-IQN50-C2, 32-bit single-core MCU, 50 MHz, 64 KB Flash, 8 KB RAM, 6x10b A/D, Microwire/QEI/SPI/SSI/UART, -40°C to 85°C, 3 V–3.6 V, 48-LQFP tray.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 800 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~85°C |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | Microwire, QEI, SPI, SSI, UART/USART |
| Number of i (O) | 30 |
| Core processor | ARM® Cortex®-M3 |
| Case | 48-LQFP |
| Data converters | A/D 6x10b |
| Program memory size | 64KB (64K x 8) |
The LM3S818-IQN50-C2 is a Texas Instruments Stellaris ARM Cortex-M3 MCU clocked at 50 MHz with 64 KB of Flash and 8 KB of RAM. That 50 MHz core on a single-cycle multiply architecture handles a 10 kHz current-control loop with margin for the comms stack.
Connectivity covers Microwire, QEI (for quadrature encoder feedback), SPI, SSI, and UART/USART. The 30 I/O pins in the 48-LQFP leave room for a keypad, status LEDs, and a few discrete signals alongside the serial buses.
The LM3S818-IQN50-C2 runs at 50 MHz on an ARM Cortex-M3 core with a 32-bit single-cycle multiply.
The LM3S818-IQN50-C2 is rated for -40°C to 85°C, making it suitable for industrial and outdoor telecom equipment.