Core architecture and on-chip memory
The LM3S1816-IQR50-C5 is a 32-bit single-core microcontroller built around the ARM Cortex-M3 core, part of the Stellaris ARM Cortex-M3S 1000 series.
On-chip peripherals include a brown-out detect/reset, DMA controller, POR, PWM outputs, and a watchdog timer. The device provides 33 general-purpose I/O lines and an 8-channel 10-bit A/D converter. Connectivity options cover I²C, IrDA, Microwire, SPI, SSI, and UART/USART interfaces, making it suitable for sensor aggregation and serial communication in embedded control applications.
Texas Instruments has marked the LM3S1816-IQR50-C5 as obsolete.