Texas Instruments Stellaris ARM Cortex-M3S 2000 series LM3S2911-IQC50-A2, 32-bit single-core MCU, 50MHz, 256KB Flash, 64KB SRAM, 60 GPIO, CANbus/I²C/SPI/SSI/UART, 100-LQFP (14x14mm), -40°C to 85°C, 2.25V–2.75V.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 2000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.25V ~ 2.75V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 60 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Program memory size | 256KB (256K x 8) |
The LM3S2911-IQC50-A2 is a 32-bit ARM Cortex-M3 MCU from the Stellaris series, clocked at 50 MHz. It carries 256 KB of Flash and 64 KB of SRAM, with 60 GPIOs and CANbus, I²C, SPI, SSI, UART interfaces.
The 50 MHz core handles a CANopen stack with millisecond control loops and a UART-based HMI update. The 64 KB SRAM provides headroom for a modest RTOS heap and communication buffers.
The core runs at 50 MHz, which is the maximum clock for this Cortex-M3 device.