What this Stellaris Cortex-M3 brings to the BOM
The LM3S8962-EQC50-A2 is a 32-bit ARM Cortex-M3 MCU from the Stellaris 8000 series, clocked at 50 MHz. It has 256 KB of Flash and 64 KB of RAM. On the connectivity side, this part integrates both Ethernet MAC+PHY and CAN bus — a pairing that lets a single MCU bridge an industrial CAN network to a plant Ethernet backbone. The 42 general-purpose I/O and the 4-channel 10-bit ADC cover local sensor read and actuator drive without an external CPLD.
50 MHz core — what it means for the control loop
At 50 MHz the Cortex-M3 executes a single-cycle multiply and a hardware divide, so a PID loop or a CAN message filter runs in deterministic time. The 64 KB of RAM is sized for a small RTOS with a few mailboxes — not a Linux-class heap, but adequate for a motor-drive state machine or a protocol gateway that handles one or two concurrent connections.
EOL lifecycle — plan the BOM transition now
This device is flagged as end-of-life (hot). Production has stopped or is in its final window. For a BOM that depends on this part, the procurement path is surplus and broker-channel sourcing.