Obsolete silicon with Ethernet — what it means for a BOM line
Any new-design win should target a current-generation Stellaris or Tiva-C family part. For existing production, the remaining supply moves through independent distribution, and each lot's date-code provenance matters — verify the PCN trail before committing a BOM line.
25 MHz Cortex-M3 with Ethernet — peripheral fit and memory headroom
The 25 MHz core with 96 KB Flash and 32K x 8 SRAM is sized for control-oriented designs that need a network stack — think remote I/O nodes, industrial gateways, or building-management controllers. The 2x10-bit ADC handles basic analog sensing, and the 34 I/O lines suit moderate GPIO counts.
108-ball BGA — layout and rework considerations
Housed in a 108-LFBGA (10x10 mm body), this part demands a multi-layer PCB with via-in-pad or microvia capability for fanout. The BGA pitch is fine enough that manual rework needs a hot-air station with a calibrated profile and a reball stencil.