80 MHz Cortex-M3 with CAN and USB — what this part brings
The LM3S5P3B-IBZ80-C5: The peripheral set includes CANbus, USB, I2C, SPI, UART/USART, IrDA, LINbus, and Microwire connectivity, plus a 16-channel 10-bit ADC, PWM timers, a quadrature encoder interface (QEI), DMA, and a watchdog timer.
Texas Instruments has discontinued the Stellaris family and no longer manufactures the LM3S5P3B-IBZ80-C5. Date-code provenance and authenticity screening are critical when buying from this channel — verify the PCN timeline and request traceable stock.
64 KB Flash and 24 KB SRAM — sizing the firmware budget
The 24 KB SRAM is adequate for a few packet buffers and a modest heap, but consider external SRAM or a larger-memory sibling if your design requires significant data buffering. The 80 MHz core executes from Flash with wait states; the memory map and prefetch buffer details are in the datasheet for timing closure.
108-ball BGA — footprint and assembly notes
The 108-LFBGA package measures 10x10 mm. It requires multi-layer PCB routing and X-ray inspection after reflow.