The 100-pin LQFP package brings out 60 GPIOs and a 16-channel 10-bit ADC.
Ethernet, CAN, and USB OTG — the connectivity that defines this part
The Ethernet MAC with integrated PHY is the headline differentiator versus lower-tier Stellaris parts. Combined with dual CAN controllers and USB OTG, this MCU was designed for industrial gateway, protocol converter, and remote terminal unit (RTU) roles where multiple fieldbus and network stacks must coexist. The 80 MHz Cortex-M3 core has enough headroom to run a lightweight TCP/IP stack alongside a CANopen or Modbus application without an external network coprocessor.
256 KB of program Flash is adequate for a full Ethernet stack plus application code, but leaves limited room for over-the-air update staging — plan for external serial Flash if you need dual-image OTA. The 96 KB SRAM supports moderate-size packet buffers (several Ethernet frames) and a real-time OS heap.
Obsolete — sourcing reality and replacement planning
Buyers should verify date code and condition at quote time. For new designs, a pin-compatible replacement within the Stellaris family is not confirmed — a full BOM-level migration to a current TI Cortex-M4 series part is the practical path.