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.
Dick
-----Original Message-----
From: James Willing [SMTP:jimw_at_agora.rdrop.com]
Sent: Thursday, July 15, 1999 11:54 AM
To: Discussion re-collecting of classic computers
Subject: Help ID this RAM chip?
Have a bad one in an OMNIbus memory card. DS9804PC Got to love some of
these numbers...?
Figures as a 1Kx1 static(?) RAM part, but I have not been able to cross
reference it in the couple of closest books I have at hand. Anyone have
any clues on this one? (before I have to start signal chasing?)
-jim
---
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Received on Fri Jul 16 1999 - 01:26:22 BST