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_at_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
---
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Received on Fri Jul 16 1999 - 11:50:52 BST