The LM3S310-EGZ25-C2: Connectivity options cover Microwire, SPI, SSI, and UART/USART interfaces.
25 MHz core and memory sizing
The 25 MHz ARM Cortex-M3 core delivers enough throughput for real-time control loops, serial protocol handling, and basic signal processing. The 4 KB RAM supports a few hundred bytes of stack plus moderate-sized data buffers for UART or SPI transactions. For designs that need more memory headroom, the Stellaris family offers pin-compatible density upgrades without a board respin.
Package and board-level fit
The 48-VFQFN exposed pad package (7x7 mm body) needs a via-stitched thermal land on the PCB for heat dissipation.
For dual-sourcing or supply resilience, the Stellaris family includes multiple density and package variants that share the same Cortex-M3 core and peripheral set, though pin compatibility should be verified against the specific ordering code.