80MHz Cortex-M3 with 64KB flash and CAN/USB
The LM3S5P31-IQC80-C0T: The 32-bit Cortex-M3 core delivers 80MHz throughput for control-loop and protocol-stack processing, while the 64KB flash and 24KB RAM together budget for a moderate firmware image with a real-time operating system and application heap.
Connectivity includes CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, and USB — covering fieldbus, sensor, and human-interface links from a single chip. The 67 GPIOs provide enough pins to interface with external memory, displays, and discrete sensors without a port expander. On-chip peripherals include a brown-out detect/reset, DMA controller, POR, PWM outputs, and a watchdog timer. The 16-channel 10-bit ADC captures analog signals from multiple sensors or potentiometers without an external multiplexer.
Texas Instruments lists the LM3S5P31-IQC80-C0T as obsolete. No official successor or pin-compatible replacement is recorded in the product documentation. Availability and current pricing are verified at quote time.