chips - test-drb@ccmp.vtda.org

28 Jun 1999

SInce these are electrically eraseable it's of no consequence what the
previous program was.  These parts can be viewed as a relplacement for the
entire 16xN series where x=L or R and N ranges from 4 to 8.  They can
effectively emulate/replace 16L8, 16R4, 16R6 and 16R8 with a few exceptions.
The macrocells associated with pins 19 and 12 have no feedback path of their
own, i.e. it must be via the adjacent macrocell.  The data book (these are
AMD/Vantis parts) for the Lattice GAL parts will explain it adequately if
you can't lay hands on an AMD databook.

Dick

-----Original Message-----
From: Tony Duell &lt;ard(a)p850ug1.demon.co.uk&gt;
To: Discussion re-collecting of classic computers
&lt;classiccmp(a)u.washington.edu&gt;
Date: Monday, June 28, 1999 5:40 PM
Subject: Re: chips

...

 I found some 20 pin DIP chips, 8 chips in a plastic chip tube. I have no
 idea what they are, so i though i'd mention it here. maybe someone can
 use these.

    PALCE16V8H-15
    PC/4 9545ABA L 
They're PALs. The number can be decoded as follows :

16 - 16 inputs to the 'AND' matrix
V - 'Versatile'. Each output comes from a configurable block that allows
it to be either a normal output or a flip-flop
8 - 8 outputs

What they are, and if they're useful, depends on whether they've been
programmed, and if so, with what.

-tony