On 12/30/20 3:56 PM, afachat_at_gmx.de wrote: > On Dienstag, 29. Dezember 2020 18:19:02 CET MichaĆ Pleban wrote: >> afachat_at_gmx.de wrote: >>> Also, the RAM would need to be much faster, and I don't know if there are >>> faster versions of the 5V tolerant CPLD. Currently I'm using the 6ns >>> version, I don't think we can go much faster than this. >> >> I am running my 8088 board at 12 MHz with the ATF1508 5V CPLD and SRAMs >> without any problems. >> > > I just checked the available RAM chips. Through hole parts go down to 55ns > (maybe 45ns) - that is max 10MHz if at all. Anything faster is SMD ... should > be possible though. You can get faster SRAM in DIP. Check older 486 boards for part numbers, 25ns are doable. GerritReceived on 2020-12-30 17:00:40
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