Stellaris 300-series ARM Cortex-M3 for industrial control
At 25 MHz the core delivers roughly 0.8 DMIPS/MHz, or about 20 DMIPS total — enough to run a PID loop at 10 kHz with margin for protocol framing. The single-cycle multiply and hardware divide keep FFT or CRC calculations from stalling the pipeline.
Memory budget for firmware and data
16 KB of Flash holds a modest application — a bootloader plus a single application image fits, but an OTA staging area would need external SPI Flash. The 4 KB SRAM is the tight spot: a 1 KB DMA buffer plus a 1 KB protocol stack leaves 2 KB for stack and variables, so watch your call depth.
The brown-out detect and POR handle supply ramps without an external supervisor.
TI has not issued a last-time-buy notice for this exact code, but the NRND flag means the part is in the tail of its production life. New designs should migrate to a current Stellaris or TM4C series device; existing production lines can continue sourcing through independent distribution while stock lasts.