IC ID help needed

From: Bill Dawson <whdawson_at_mlynk.com>
Date: Fri Mar 31 23:48:07 2000

-> I've done the basic digging (www.chipdir.com, etc.) and can't find info
-> on the following chips I found in a box of stuff some one gave me a while
-> back:
->
-> 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.

IIRC, this is the same as a 21L02, a lower power version of the 2102. AMD
just subs a 9 for a 2. 1024x1, BTW.

-> 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)

Sorry, can't help on this one.

-> I have a few of each, along with 2Kb of 21L02 chips (-2L and -4L speeds,
-> whatever they are)

-2L = 200ns, -4L = 400ns

-> -ethan

Bill

whdawson_at_mlynk.com
Received on Fri Mar 31 2000 - 23:48:07 BST