DEC 8640 Pinout

Rob Jarratt robert.jarratt at ntlworld.com
Sun Oct 28 12:53:06 CDT 2018


I am trying to trace the reason why the CPU on my Pro 350 is apparently
being constantly reset. I have reached a DEC 8640 chip. Does anyone have a
pinout for it, perhaps even a datasheet, so I can understand what it is
supposed to do and whether the pin is an input or an output?

 

Thanks

 

Rob



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