Logic fabric and memory budget
The XC7A35T-2FGG484C packs 33,280 logic elements distributed across 2,600 configurable logic blocks — enough for a soft-core processor, a few DSP pipelines, and the glue logic that ties them to the pins, all in one die. On-chip block RAM totals 1,843,200 bits, which translates to about 225 KB of dual-port SRAM for FIFOs, line buffers, or small frame stores without going off-chip. The 250 user I/O route out to the 484-ball BGA — the 23x23 mm package keeps the footprint manageable for a 4- to 6-layer board, though the 0.8 mm ball pitch still demands careful fan-out planning.
Core supply and temperature envelope
Core voltage range is 0.95 V to 1.05 V — a 1.0 V nominal rail with ±5 % tolerance. The 0.95 V floor means the regulator must hold regulation under load transients; a standard 1.0 V LDO or POL converter with 1 % accuracy covers it cleanly. Operating temperature is 0 °C to 85 °C junction — commercial grade. This covers most indoor equipment, test gear, and communications infrastructure, but not extended industrial or automotive ambient. If the enclosure sees 70 °C internal air, the junction will run 15-20 °C above that under load, so budget the thermal margin.
Lifecycle and compliance
The part ships in a tray, surface-mount, ready for standard lead-free reflow profiles.