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Altera_Forum
Honored Contributor
12 years agoCMOS General Input Output (IO) pin speed specification of cyclone IV
Hi, We want to connect 3.3V 125MHz CMOS signal to one of the banks of Cyclone -IV FPGA EP4CE30F23C8N. . We want to know the maximum IO speed specification of this device ? Regards, ...
Altera_Forum
Honored Contributor
9 years agoCyclone IV datasheet specifies
--- Quote Start --- I/Os using general-purpose I/O standards such as 3.3-, 3.0-, 2.5-,1.8-, or 1.5-LVTTL/LVCMOS are capable of a typical 200 MHz interfacing frequency with a 10 pF load. --- Quote End --- I don't see a reason to expect lower speed for Cyclone V, but it's a different question if 200 MHz is feasible with the connected peripherals.