ORCA4 family — logic density and I/O budget
The OR4E04-3BM680C is a Lattice Semiconductor ORCA™4 FPGA with 10368 logic elements (equivalent to 1296 LABs/CLBs) and 643000 system gates. The 466 user I/O count is the headline number for board-fit decisions — it determines how many parallel buses, memory interfaces, or peripheral channels the device can service without external muxing. On-chip block RAM totals 113664 bits, enough for small FIFOs, coefficient tables, or register files in control-path applications. The core supply is 1.425 V — a tight rail that demands a regulator with ±3 % or better accuracy to keep timing closure across temperature.
Temperature grade and deployment boundary
This FPGA is not specified for industrial or automotive environments — if the enclosure sees condensation, -20°C startup, or 85°C soak, the timing model and reliability figures do not apply. The 1.425 V core rail and 466 I/O banks must be decoupled per the ORCA4 layout guidelines; the Bulk package (loose trays) means the part arrives without tape-and-reel carrier, so the pick-and-place feeder setup uses a tray feeder or tube handler.
Active lifecycle — sourcing posture
Lattice lists the OR4E04-3BM680C as Active.