On 7/13/2016 4:27 PM, smf wrote: > On 13/07/2016 18:12, Jim Brain wrote: >> In any case, the PCB in my store attaches _OE of the 2764 socket to >> _CS of the 2364. If your 2764 does the same, you're done. If it >> uses _CE to trigger (which I have not seen), cut the trace and >> jumper. If it uses both (which I have seen, though rarely), It's OR >> gate time. If you deadbug the IC, you can stash it in the interior >> of the 24 pin socket, as you only need 5 connections (A,B,Y,PWR,GND) > > In light of reading the datasheets in further detail I agree. > > However I still think you won't just be able to throw a MCM6876x in a > converter, stick that in an eprom programmer that only supports 27xx > and burn it. The adapter only deals with the read differences, not the > write differences. > > > Message was sent through the cbm-hackers mailing list I can't argue there. I think such an adapter makes the most sense if you need to put a 2364 into a programmer for reading, or you need to put a 2364 into a circuit that accepts a 2764 (not sure what that use case would be, but I will concede it as a use case) or you bought a 2364 ROM-el from some Commodore fanboy's store and you need to program it in a regular programmer, in which case you don't have to worry about Vpp, as the ROM-el is a 49F001 or 49F512, and you'll need to wire up a flying lead to use as _WE. Jim -- Jim Brain brain@jbrain.com www.jbrain.com Message was sent through the cbm-hackers mailing listReceived on 2016-07-14 00:00:02
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