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Unboxing C64/SX PLA replacement by Manosoft

November 24th, 2010 3 comments
Manosoft PLA Replacement

Autopsy:

Manosoft the author of the famous interface C64SD in these days is selling a replacement part for our Commodore 64 (first model) and SX64, we are talking about the PLA chip (906114-01), the component for excellence of failure of many Commodore 64.

The chip PLA (906114-01) is no longer sold as spare part, but the file for build a ‘homebrew’ PLA clone is available online. The Manosoft PLA is designed specifically to meet all people.

I and Manosoft after a careful reading of C64 forums we concluded that we must utilize a 27C512 PROM 90ns from ST (instead of an EPROM). This means you get a good compatibility (like 99%) with all Software and Hardware available for the Commodore 64.

source: c64sd.roxer.com