80 MHz Cortex-M3 with industrial connectivity
The Texas Instruments LM3S5K31-IBZ80-C5T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 5000 series, clocked at 80 MHz with 128 KB of Flash and 24 KB of RAM. It carries a full peripheral set including CAN, USB, I²C, SPI, SSI, UART, IrDA, and a quadrature encoder interface, plus 16-channel 10-bit ADC and PWM. The 108-ball BGA package (10x10 mm) and -40°C to 85°C industrial temperature range make it suited for embedded control in factory automation, motor drives, and networked sensor nodes where a single-chip CAN/USB gateway is needed.
80 MHz — what it means for the bus
The Cortex-M3 core runs at 80 MHz. The 24 KB RAM is the tighter resource.
Obsolete — sourcing reality
Connectivity and I/O in a 10x10 BGA
The 108-ball BGA (10x10 mm) provides 67 GPIOs. Connectivity includes CAN, USB, I²C, SPI, SSI, UART, IrDA, Microwire, and QEI.