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From: vadim on 17 Jun 2010 09:08
Maybe this is oftoppic, but i confess, that don't know a place
anymore, where i can ask about this...I have an vintage American
Research Corp. 286 (a grate treasure for understanding the hardware
part of PC) mobo whith empty DIP sockets for an N82S147 ROM, and 16L8A
PALs, in spite of that mobo is a clone of original IBM, i think, that
it's schematic is mutch close, and the PALs from IBM can work in this
mobo.Maybe sombody have a reference manual for the IBM AT where the
time diagrams of signals is
illustrated.Hopefully it help me to disclouse the structure of PLAs,
or somebody can share the dumps with me. Help me please..
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