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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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 Posted: Fri Nov 18, 2005 2:34 pm Post subject: Re: Need databook info on Intel 2763 |
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| CPUShack wrote: | Specifically, why/how is it different then the 2764?
-John |
I like this explanation that I found in newsgropus:
| Quote: | t's a 2764 in disguise.  My Zaxxon had 3 of 'em. I believe the 2763 designation was used because it had a custom part# (the Coleco number should be printed on it). I just popped 'em in the eraser and programmed 'em like 2764's. Mine were 21V, but YMMV. Try programming them at 12.5V, and if that doesn't work, erase and try again at 21V. In fact, I used the Zaxxon board and EPROMs for my prototype cart of my game.  |
Gennadiy |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Fri Nov 18, 2005 4:12 pm Post subject: |
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I doubt they were custom, as I have them from several years, in 2 different speed grades.
I knwow Intel made a 2764, then fixed a few rthings with it and got the 2764A. But not sure how the 63 fits in (and 63-3)
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