The LM3S2965-EQC50-A2: The 100-pin LQFP package exposes 56 general-purpose I/O lines and includes a 4-channel 10-bit ADC.
This is the official signal from Texas Instruments that the part is in its phase-out trajectory — no longer intended for new product designs, though still available for existing production runs and repairs. For a board-level repair technician, this is the part that keeps a legacy controller board running; for a procurement team, it means the supply window is finite.
50 MHz core and peripheral mix
The 50 MHz ARM Cortex-M3 core is a proven workhorse — not the fastest in the Stellaris family, but fast enough for most real-time control loops and protocol handling. The CANbus interface, alongside I²C, SPI, and UART, makes this MCU a natural fit for a gateway node that bridges a CAN fieldbus to a local sensor network.
The 0.5 mm pitch means a standard reflow profile works, but the fine pitch demands a clean solder-paste stencil. The thermal pad is not exposed on this package, so heat dissipation is through the leads only — keep the ambient airflow in mind if the MCU is running near the 105°C limit with all peripherals active.