[Retracted] FPGA-Based Photoelectric Detection Control System with Image Signal Acquisition

Table 2

Features of the Cyclone II family.

Features	EP2C5	EP2C20	EP2C35	EP2C70
Les	4,608	18,752	33,216	68,416
M4K RAM blocks	26	52	105	250
RAM bits	1,19,808	2,39,616	4,83,840	1,152,000
PLLs	2	4	4	4
User I/O pins	158	315	475	622