NRND — plan your BOM migration
The LM3S5749-IQC50-A0T: This is the official signal that the part remains available for existing production runs but is not intended for new design-ins. If you are qualifying a fresh BOM, look for a pin-compatible successor within the Stellaris family — the same 100-LQFP footprint and peripheral set may carry forward with a different base product number.
50 MHz Cortex-M3 with USB and CAN
The 61 general-purpose I/O lines give plenty of headroom for sensor multiplexing or parallel display interfaces.
What the peripheral set means for your BOM
The 8-channel 10-bit ADC covers basic analog sensing — think potentiometer feedback, thermistor readout, or current-sense amplifier outputs. The DMA controller can move ADC results to SRAM without CPU intervention, which matters if you are running a control loop at the full 50 MHz.