8 Jun
2019
8 Jun
'19
11:05 a.m.
desperately looking for jedec file of PAL16L8 position U69 part # 1820-2991 for my HP9816
8 Jun
8 Jun
1:18 p.m.
L series are combinatorial only. You (or someone who has a working one)
should be able to figure out a logic map by either running through all
the input permutation or putting it in a reader that will do the same
(vs reading the fuse data).
-Alan
Good luck.
On 2019-06-08 11:05, Piero Andreini via cctech wrote:
desperately looking for jedec file of PAL16L8 position
U69 part #
1820-2991 for my HP9816
2:53 p.m.
Do you have a schematic that shows what it does. You could write your own file is not
really complicated for a 16L8. I wrote my own for my 6532to6530 adapter for the KIM-1.
I'll admit I did a logic mistake the first time but I'd have done the same with
palasm.
Dwight
________________________________
From: cctech <cctech-bounces at classiccmp.org> on behalf of Alan Hightower via
cctech <cctech at classiccmp.org>
Sent: Saturday, June 8, 2019 10:18 AM
To: General Discussion: On-Topic Posts
Subject: Re: HP9816 PAL16L8
L series are combinatorial only. You (or someone who has a working one)
should be able to figure out a logic map by either running through all
the input permutation or putting it in a reader that will do the same
(vs reading the fuse data).
-Alan
Good luck.
On 2019-06-08 11:05, Piero Andreini via cctech wrote:
desperately looking for jedec file of PAL16L8 position
U69 part #
1820-2991 for my HP9816
2:57 p.m.
On Sat, Jun 8, 2019 at 6:18 PM Alan Hightower via cctech
<cctech at classiccmp.org> wrote:
L series are combinatorial only. You (or someone who has a working one)
Not so. The 16L8 has feedback connectoionsfrom the outputs to the logic
array. So while there are no registers (D types), you can make SR type
circuits in it.
-tony
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participants (4)
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alan＠alanlee.org -
ard.p850ug1＠gmail.com -
dkelvey＠hotmail.com -
pieroandreini＠gmail.com