27 Feb
2018
27 Feb
'18
5:44 p.m.
Hi, all,
I'm going through a box of random ICs and one particular item is not
showing up on my searches outside of a couple eBay auctions for chip
collectors.
The IC is a 20-pin ceramic body with side brazed legs, gold pins, chromed
lid, with NEC D2168D on it with "-2" painted on the ceramic and date codes
from 1984. It's almost certainly a RAM chip of
some kind, but I'm not
finding any pinouts or data sheets.
Anyone recognize this? Anyone know a system that uses them? I have more
than 10, and since I haven't run across them before, I probably don't have
a machine that needs them.
Thanks for any tips.
-ethan