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Like what 120ns, 100ns, 80ns.

Which one?

hyarion wrote:well, 250ns is really slow these days.
you don't need it to be exactly 250ns, a lower "address to output delay" is preferable.

Ok well then what eprom speed is not to old to get but still works fine on a nes?

Thanks for writing back.

I just went on to ebay to buy some 27c040 eprom and i asked them to be at 250ns and they said that doesn't exist!

Whats that about?

Hey i just want to know what speed should an eprom be for nes and for snes?

Thanks!