[Coco] CoCo3 PIA?

[Mark Marlette]

I also noticed that the NAND(IC14) could be using it's inputs to pull  
the IC5's inputs high. That way Tandy would have had to spend the  
$0.01 on the pullup resistors. :)

Quoting Robert Gault <robert.gault at worldnet.att.net>:

> PS.
>
> The closest I can come to info on this chip is
> "industrial PIA (18V open drain)"
> I'm still looking.
>
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