16 Jul
1999
16 Jul
'99
11:50 a.m.
Well, this must be a stock number. My old AMD and National books, both of
which have cross-references, which is why I still have them, don't have the
number, nor does my '86 or '78 IC master.
Looks like you've got your work cut out for you!
Dick
-----Original Message-----
From: James Willing [SMTP:jimw@agora.rdrop.com]
Sent: Friday, July 16, 1999 8:47 AM
To: Discussion re-collecting of classic computers
Subject: RE: Help ID this RAM chip?
On Fri, 16 Jul 1999, Richard Erlacher wrote:
Some indication as to which mfg might have made it
would be helpful. The
number of package pins would help too. It could be a National part with
the prefix, though AMD used a set in that range also. If they're
18-pins,
they might be non-multiplexed dynamic rams, and if
they're 16-pin 5980's
they might be 4k DRAMs ala 4027, with the terminal 4 meaning 450 ns
access
cycle, i.e. 250ns access time + 200 ns RAS precharge.
AMD logo, 16 pins...
-jim
---
jimw(a)computergarage.org
The Computer Garage - http://www.computergarage.org
Computer Garage Fax - (503) 646-0174
>> Coming soon to www.computergarage.org - the
CBBS/NW on-line archives
>> Coming to VCF III (2-3 October 1999) - CBBS/NW
live!
16 Jul
16 Jul
12:26 p.m.
On Fri, 16 Jul 1999, Richard Erlacher wrote:
Well, not the first (or the last time). B^}
Someone offered that they recalled having come across that part somewhere
along the way in a configuration where they were intermixed with 2102
parts, so they suspected they were the same.
Last night just on a lark, after a little quick signal poking to make sure
that at least power was in the right places, I dropped a 2102 part in to
place for the deceased AMD part, and it seems to work.
No release of 'magic smoke', and I can read/write the bit... So...
YMMV! B^}
-jim
---
jimw(a)computergarage.org
The Computer Garage - http://www.computergarage.org
Computer Garage Fax - (503) 646-0174
AMD logo, 16
pins...
Well, this must be a stock number. My old AMD and National books, both of
which have cross-references, which is why I still have them, don't have the
number, nor does my '86 or '78 IC master.
Looks like you've got your work cut out for you! >> Coming soon to www.computergarage.org - the
CBBS/NW on-line archives
>> Coming to VCF III (2-3 October 1999) - CBBS/NW
live!
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