Cortex-M3 on a 50 MHz core with 32 KB Flash
The LM3S601-IQN50-C2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 600 series, clocked at 50 MHz. It carries 32 KB of on-chip Flash and 8 KB of SRAM — enough for a single industrial protocol stack, a motor-control loop, or a sensor hub firmware image.
At 50 MHz the Cortex-M3 executes a single-cycle multiply. The QEI peripheral captures encoder edges in hardware.
48-LQFP — board footprint and inspection
The 36 I/O break out to three sides; the fourth side carries power and ground.