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Author Topic: Nick and Dave pinouts (Read 1422 times)

Offline Zozosoft

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Nick and Dave pinouts
« on: 2013.June.18. 10:56:28 »
Unfortunately the Nick and Dave documentations don't include the chips pinout.
On the schematics can be found, but hard to find specific pin on the real chip, especially about one strange thing: the "logical" chips have a 68 pins, but the real ones have a 72! Easy to find two, because not have a pin, but another two looks a real pin.
Bruce! Do you have any idea why these "fake" pins?

Finally I collected out the pinouts, and SlasNet made very nice graphics. Thanks!!!

Offline BruceTanner

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Re: Nick and Dave pinouts
« Reply #1 on: 2013.June.18. 11:32:56 »
Quote from: Zozosoft
Bruce! Do you have any idea why these "fake" pins?
Very useful! Will you put them on your web site along with the schematics so people can find them easily?

No I don't know why there are fake pins but it is very possible that 72 pins was just a standard size from the manufacturers. The contents of the chips was custom but I doubt whether the actual package and pinout shape was (although I can't actually remember!). It is also possible that one or more of the "spare" pins is an undocumented test pin, ie. something interesting to the designers (and no doubt you :twisted:!) is output on them.

Offline Zozosoft

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Re: Nick and Dave pinouts
« Reply #2 on: 2013.June.19. 10:22:50 »
Quote from: BruceTanner
Will you put them on your web site along with the schematics so people can find them easily?
Done!