ORCA4 logic fabric and memory budget
The OR4E04-3BM416C is a Lattice Semiconductor ORCA™4 FPGA with 10368 logic cells arranged in 1296 configurable logic blocks (CLBs). On-chip memory totals 113664 bits of distributed RAM, backed by a gate count of 643000 gates — enough for medium-density glue logic, state machines, and small FIFO buffers without external SRAM. The 290 user I/O pins give the board designer room to fan out to multiple peripheral buses, parallel data paths, or a wide memory interface without resorting to I/O multiplexing.
Core supply and temperature grade
The commercial-grade window suits indoor, temperature-controlled environments — telecom racks, test equipment, or industrial control cabinets with forced air — but not extended outdoor or under-hood deployment.