Cortex-M3 core at 50 MHz — on-chip memory for control-loop firmware
The LM3S610-EGZ50-C2: The 32 KB on-chip flash and 8 KB SRAM are sized for a single control-loop firmware image with room for a modest RTOS footprint and a few hundred bytes of stack per task. Two 10-bit ADC channels provide basic analog measurement without an external converter.
Industrial temperature grade and VQFN package — board-fit realities
The 48-VFQFN with exposed pad (7x7 mm body) requires a thermal via array under the paddle to keep the junction below the 105°C ceiling in a still-air enclosure. The 0.50 mm pitch on the VQFN perimeter means the inner rows of the exposed pad are not routable on a two-layer board without blind vias — budget for a four-layer stack if all 34 I/O are used. The supplier device package is 48-VQFN (7x7).
Active production — sourcing posture for this Stellaris MCU
TI lists the LM3S610-EGZ50-C2 as active (current lifecycle stage). No pin-compatible second-source is listed — the Stellaris family is TI's own ARM core line, so the BOM carries single-source risk for this order code.