What this MCU packs for the BOM
The Texas Instruments TM4C129EKCPDTI3 is a Tiva C series ARM Cortex-M4F 32-bit MCU running at 120 MHz, with 512 KB Flash, 256 KB RAM, and 6 KB EEPROM — enough firmware and data space for a connected industrial controller or IoT gateway without external memory. The integrated Ethernet MAC+PHY and USB OTG with Host/Device/OTG support eliminate external PHY and USB controller chips. Ninety GPIOs, 20-channel 12-bit ADC, CAN, and multiple serial interfaces (UART, SPI, I²C, SSI) make this a single-chip solution for motor drives, building automation controllers, and medical equipment panels.
A motion-control PWM peripheral and quadrature encoder interface (QEI) are on-chip, so a servo axis can close the loop directly from the MCU. The 120 MHz core provides higher instruction throughput than lower-speed parts, relevant for tight control loops or Ethernet stack overhead.
For BOM freeze planning, the base product number TM4C129 covers a range of Flash/RAM and temperature variants.
Connectivity check: Ethernet and USB onboard
Yes — the TM4C129EKCPDTI3 integrates both an Ethernet MAC with integrated PHY and a USB OTG controller. The Ethernet PHY is on-chip, but external magnetics are still required on the board.