Stellaris ARM Cortex-M3 MCU for embedded control
The Texas Instruments LM3S613-IGZ50-C2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 600 series, clocked at 50 MHz. It carries 32 KB of Flash program memory and 8K x 8 of SRAM, with 32 general-purpose I/O lines and a 4-channel 10-bit ADC.
The 32 I/O lines and connectivity set (I²C, Microwire, SPI, SSI, UART/USART) let this MCU handle mixed-sensor interfaces and serial-communication bridges without an external UART or SPI expander.
32 KB Flash and 8K x 8 RAM — firmware footprint limits
The 8K x 8 SRAM supports a handful of moderate-size buffers; watch the stack depth and DMA buffers when using the ADC and serial peripherals concurrently.