Texas Instruments Stellaris LM3S8630-EQC50-A2T, ARM Cortex-M3 32-bit MCU, 50MHz, 128KB Flash, 32KB RAM, Ethernet + CANbus, 31 I/O, 2.25V–2.75V, -40°C to 105°C, 100-LQFP.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 8000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.25V ~ 2.75V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 50MHz |
| Package | Tape & Reel (TR) |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | CANbus, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 31 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Program memory size | 128KB (128K x 8) |
The Texas Instruments Stellaris LM3S8630-EQC50-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 8000 series, clocked at 50 MHz with 128 KB of Flash program memory and 32 KB of SRAM. The 31 GPIOs, internal oscillator, and brown-out/POR/WDT peripherals reduce external component count in space-constrained 100-LQFP designs.
The 50 MHz Cortex-M3 core runs a TCP/IP stack alongside a CANopen master or Modbus TCP gateway without a separate protocol coprocessor.
Texas Instruments has not published a direct pin-compatible replacement for the LM3S8630-EQC50-A2T. For new designs, consider a current-generation Stellaris or Tiva C Series MCU with Ethernet and CANbus, though a PCB respin and firmware port will be required.
No pin-compatible second source is listed. Other Cortex-M3 MCUs with both Ethernet and CANbus exist (e.g., NXP LPC176x series, STM32F107), but they differ in pinout, peripheral set, and voltage range — a board redesign is needed.
The LM3S8630 operates from 2.25 V to 2.75 V (Vcc/Vdd).