The LM3S2730-EQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from TI's Stellaris series, built on the Cortex-M3S 2000 core. It runs at 50 MHz with 128 KB of Flash program memory and 64 KB of SRAM, and packs a CANbus interface alongside SPI, UART, and SSI serial connectivity. With 60 I/O lines in a 100-LQFP package and an operating range of -40°C to 105°C, this part was originally aimed at industrial control, sensor hubs, and networked actuator nodes where CAN connectivity and moderate processing headroom were needed.
50 MHz Cortex-M3 — performance tier
The 50 MHz core speed places this MCU in the mid-range of Cortex-M3 parts — enough for real-time control loops, protocol bridging, and data logging, but not suited for heavy DSP or high-frame-rate graphics. The 128 KB Flash and 64 KB SRAM give it room for a moderate firmware stack with a CANopen or custom protocol layer, plus a few kilobytes of buffered sensor data.
Industrial temperature and connectivity
Rated from -40°C to 105°C, the LM3S2730-EQC50-A2T operates on a 2.25 V to 2.75 V supply. The internal oscillator saves an external crystal.