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_at_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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>
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>
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>
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Received on Sat Apr 01 2000 - 07:44:51 BST