I was surprised to find a local supplier clearing old stock of 2112 RAMs.
This is an NMOS static RAM 256bit x 4. The chips are new, labelled SY2112-A
(Synertek I think) and they're supposedly 350 nS devices.
I believe this was the chip used in late-model Commodore PETs (after they
designed out the earlier 6550 chips); maybe someone wants to confirm this
for the list. I seem to recall the Heathkit micro trainer used a couple
too, but I could be mis-remembering.
Not as commonly needed as the 2102 or 2114 I know, but if anybody wants some
I could pick them up. They're 5 for a buck, plus whatever it costs to mail
them-- unless of course you want to offer me something extra for my trouble
:)
--
Arlen Michaels
arlen.michaels(a)sympatico.ca