Re: Clock Card?

[dempson@actrix.gen.nz (David Empson)]

Steve Coffman <vendingmaster@nospam.yahoo.com> wrote:

> I have an unusual card I am trying to identify.  I pulled it out of a
> IIe, and what I find strange is that there is no name on the card.  It
> has 5 RCA X CDM6116E2 chips on it, and a host of other, smaller chips.

The 6116 is usually a 2Kx8 static RAM, so this card has 10KB RAM, which
seems like a rather odd amount.  The chip I'm thinking of has 24 pins
and is half an inch wide (the same width as most ROMs and EPROMs, twice
as wide as standard 74LSxxx logic chips).

> There are two AAA batteries on it, and what looks kind of like a Disk II
> plug in.  What is it?  I can provide a complete list of all the chips on
> it if needed.

Yes, that would help.  You can ignore any plain TTL logic chips for now
(74LSxxx series), but there could be other chips which are more
interesting.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand