Logic density and I/O count for glue-logic integration
The EP4CE22F17I8L packs 22,320 logic elements across 1,395 LABs/CLBs, with 153 user I/O and 608,256 bits of embedded RAM. This density suits medium-scale state machines, sensor fusion pipelines, or display interface bridging where a small FPGA offloads the main processor. The 153 I/O count in a 256-FBGA package means roughly 60% of the balls are signal pins — the rest are power and ground. A four-layer board with a dedicated ground plane under the BGA is the practical minimum for fan-out; two-layer designs will struggle to route the inner rows.
The 0.97 V to 1.03 V core supply is tight — a 1.0 V rail with ±3% regulation is required; a standard 1.0 V LDO with 1% initial accuracy and 50 mV dropout at the FPGA's core current draw meets the window. The supply voltage tolerance is narrower than the 1.15 V typical of earlier Cyclone III parts — the board's power distribution network must keep DC drop below 30 mV from regulator output to the BGA balls to stay inside the 1.03 V ceiling.
Active lifecycle and sourcing posture
The base product number EP4CE22 covers multiple speed grades and temperature variants sharing the same die and package — the suffix I8L denotes the industrial temperature range and the lowest speed grade. A BOM line using this code can be cross-checked against the EP4CE22F17I7L (faster speed grade, same package and temperature range) if timing closure is marginal.