120 MHz Cortex-M4F with integrated Ethernet MAC and dual CAN
The connectivity set is the headline feature: an internal Ethernet MAC (10/100), two CAN 2.0 controllers, and a USB OTG (Host/Device) interface coexist on the same die, alongside SSI/SPI, I²C, UART, and QEI peripherals. This makes the part a natural fit for industrial gateway panels, building automation controllers, and motor-drive HMIs where a single MCU handles both real-time control and protocol bridging. The 140 GPIOs and 24-channel 12-bit ADC provide enough mixed-signal headroom for multi-sensor acquisition and parallel actuator PWM outputs without an external FPGA or CPLD.
212-NFBGA (10x10) — board integration notes
The TM4C129DNCZADI3R is supplied in a 212-ball NFBGA package measuring 10x10 mm with a 0.5 mm ball pitch. This fine-pitch BGA requires a micro-via or HDI-capable PCB stack-up for breakout; a standard 4-layer board with through-hole vias will struggle to route all 140 I/O without adding layers. Plan for a minimum 6-layer stack with staggered or skip vias if signal integrity on the Ethernet differential pair is a concern. The supply range is 2.97 V to 3.63 V, so a single 3.3 V rail suffices. Brown-out reset and power-on reset are integrated, reducing external supervisor IC count.