3 May
2002
3 May
'02
4:05 p.m.
It would probably be easy to program a PIC or UBICOM
to GO/NOGO them. Maybe even look for bit pattern
sensitivity or check for speed. I'm building old
8080/6800/8008 stuff, and I'm thinking of using these,
but that's a lot of socket, wire wrap, board real
estate, and time! Wow, do they use power also, even
the low power ones. I prefer using 2114(L)'s, but
those seem to have become a little scarcer and more
expensive recently. OTOH, 2102's are very reliable. If
you have a good #, I'd trade you a 6871 or 6875 - the
6800 clock chips, surprisingly hard to find/expensive
- for some.
--- Tothwolf <tothwolf(a)concentric.net> wrote:
I just came across a large number of loose 2102
chips in a junkbox, and
wondered if anyone has a schematic of a test circuit
for these. I'm not
sure how many of them there are yet, but they all
appear to be from the
same batch; AM9102BPC/P2102A-4 7632QD [32nd week,
1976]. An couple
interesting facts I dug up on these chips is that
the AM9102 was AMD's
first RAM product, and it was first produced in
quantity in 1975.
I'm thinking these chips might be a good source of
ram for a 6800 based
homebrew system, especially since I already have the
chips and lots of
wirewrap (and patience)...
-Toth
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