What the 72 MHz core means for the BOM
72 MHz on a Cortex-M3 is a mid-range sweet spot — fast enough to handle USB polling, a real-time control loop, and a display update in the same tick, but not so fast that you need external SDRAM or a multi-layer PCB for signal integrity. The 12 KB SRAM is tight for heavy buffering; if the application queues USB packets alongside ADC samples, watch the memory budget.
No NRND or EOL flags. For dual-sourcing planning, the LPC1347 sits in the wider LPC13xx family; pin-compatible density variants exist across the series, but no official second-source alternate is recorded in this listing.