Re: GS-RAM, not Plus

["Bill Garber" <willy46pa@comcast.net>]

"jsnospam@cimmeri.com" <js@cimmeri.com> wrote in message
1158246395.821534.223250@e3g2000cwe.googlegroups.com">news:1158246395.821534.223250@e3g2000cwe.googlegroups.com...
:
: Looking at the GS-RAM with the glue on
: the right side, there's two verticle
: stacks of chips.
:
: 1st (left): 74F139, 74F244, 74F244
: 2nd (right: PAL26LB-15CN, 74LS245N

Thanks,

Mine is this PAL, and I'm sure you meant
to type L8. You should look at that again.

 "2nd (right: PAL16L8-15CN, 74LS245N"

That would be the (c)1986 version. They
changed the logic from that to (c)1987.
I'm still studying them to see why.
Neither one works properly in a ROM03,
and I'm also looking at why that is also.
Maybe a jumper wire or 2 will rectify it.

Bill Garber
Owner - Garberstreet Enterprizez
Co-owner - GSE-Reactive.com
(610)935-7676 (610)329-8996