--- Daniele Gratteri <email@example.com> wrote: > Can this link: > http://hero.dsavage.net/robots/Hero1/buildit/Hero1_RomUpg.html be useful to > you? It mentions the 68764 and how to make a 2764 work like that, if I > didn't misunderstood any. Who knows. I think that's the idea. Nice find. > I went to the best electronic shop of my city and I didn't find the 68764: > they're obsolete parts :-( I have been burning PROMs and ROMs for 20 years. I've _never_ seen the 68764 in any circuit I've seen at work or home. It's not only obsolete, but rare. Mostly, people took the 2716->2732->2764 route. Commodore took a slightly different path (2716->2532...) because of the pin differences with the 23xx mask-programmed ROM series. I remember getting 4K EPROMs burned for extra utilities for my PET (32K, BASIC 2.0) and how hard it was to find 2532 chips that fit the motherboard without buying a Skyles or other brand of ROM adapter. I've saved every 2532 I've seen since (about 6 ;-) -ethan -ethan ===== Visit "The Seventh Continent" http://penguincentral.com/penguincentral.html __________________________________________________ Do You Yahoo!? Check out Yahoo! Shopping and Yahoo! Auctions for all of your unique holiday gifts! Buy at http://shopping.yahoo.com or bid at http://auctions.yahoo.com Message was sent through the cbm-hackers mailing list
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