Logic fabric and memory budget
The OR2C12A4M84-D packs 1296 logic elements (324 CLBs) into the ORCA™2 fabric, yielding 35800 usable gates — enough for glue logic consolidation or a modest state machine without starving the routing resources. On-chip block RAM totals 20736 bits, which feeds small FIFOs, coefficient tables, or a dual-port scratchpad without chewing into the LUT budget. 64 user I/O pins on the 84-position package give the board designer enough headroom for a 16-bit data bus, address decode, and control handshake — but count the pins honestly before the layout freezes, because the I/O count is the hard ceiling.
Supply rails and temperature grade
Core supply is 4.75 V nominal — a single 5 V rail powers the device, no separate VCCIO or VCCAUX needed for this generation.