Re: MAX Machine PLA

From: Pete Rittwage <>
Date: Fri, 29 Jul 2016 22:51:20 -0400
Message-ID: <>
> Hello!
> My MAX Machine died, and it turned out that infortunately it's the 6703
> PLA. Which is not as bad as it sounds, since theoretically the PLAN
> could be replaced by a modern replacement.
> However, it is not the Signetics PLA used on other Commodore products.
> It has 11 inputs and 15 outpus, and I cannot find any information about
> it on the Web. But before I start reverse-engineering it on my own, I'd
> like to ask here if there is any info avilable on this chip?

I'm quite surprised the MAX has a PLA. I didn't think it had any
alternative memory configurations, so it is likely a very simplified
version of the C64 version handling only the RAM timings, etc.

Good luck on your quest! They are so rare that I doubt anyone has reversed
one before.

I got a broken one last year, but luckily it was only a bad CPU and it


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Received on 2016-07-30 04:00:02

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