31 Mar
2000
31 Mar
'00
11:44 p.m.
9102=2102 sram. It's just another number for the same thing.
74C92x is TI and you need to find a TI or maybe motorola CMOS databook
CA1980ish.
Allison
From: Ethan Dicks <ethan_dicks(a)yahoo.com>
AMD 91L02 - I know it's some kind of SRAM but not
the size or pinout. The
9101
is 256x4. This one is likely to be either 1024x1 or
1024x4 but I don't
know
which.
NS 74C921 - The 74C922 and 74C923 are somewhat common keyboard encoders,
one
of which was used on the Netronics Elf-II design. I
can't find any info on
the pinout of the 74C921, but I did find several places selling them from
$6 USD to 72 Danish Kroner (however much that is)
I have a few of each, along with 2Kb of 21L02 chips (-2L and -4L speeds,
whatever they are), all with 1979 - 1983 date codes.
Any clues?
Thanks,
-ethan
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