80 MHz Cortex-M3 with on-chip memory for control applications
The LM3S1R26-IQR80-C3T runs an ARM Cortex-M3 core at 80 MHz, delivering enough throughput for real-time control loops, protocol stacks, and sensor fusion without external memory — the 256 KB Flash and 48 KB SRAM cover the firmware and runtime stack for many embedded designs. Texas Instruments Stellaris ARM Cortex-M3S 1000 series targets industrial and mixed-signal applications with a 32-bit single-core architecture, internal oscillator, and peripherals including brown-out detect, DMA, POR, PWM, and watchdog timer.
A pin-compatible alternative within the Stellaris family may exist, but the buyer should verify the exact memory and peripheral match against the BOM before committing.