[sdiy] RAM CCD

ChristianH chris at scp.de
Tue Jan 25 11:02:10 CET 2005


Yep, that's right. To replace a 2112 (or two), it should be possible to
do some stripboard hack using a 6116 at a pinch. 
Address In, common Data I/O, WR, CE - it's all there.

I found the data sheet in that big fat 1977 Intel data book, for the
time being it's available (no, not the whole book ;-) at
  ftp://ftp.scp.de/pub/user/chris/2112.zip
(still no proper web site...)

D4016D looks like NEC, meaning uPD4016D. Sometimes NEC had a different
numbering scheme than the rest of the world. Found nothing about that
one though. My 1979 NEC book appears to be too fresh for that...

cu
Christian



On Fri, 21 Jan 2005 17:45:39 -0800 James Patchell <patchell at cox.net>
wrote:

> The 2112, as I recall, was a 256 x 4 static ram (I used to use these 
> things....getting old...)....
> 
> At 04:43 PM 1/21/2005 -0500, Roy J. Tellason wrote:
> >On Thursday 20 January 2005 08:36 pm, anthony wrote:
> >
> > > Heh I can't even find a datasheet online for this RAM. It says D4016D,
> > > which I think is like a 2112 or something like that.
> >
> >Nope.  I don't know of a "2112" (except maybe a tune by that name?) but there
> >were 2102 (1Kx1) and 2114 (1Kx4) which were _static_ ram,  the 4016 (and
> >4116) were 4Kx1 _dynamic_ ram.




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