Old battery-backed RAM/Clock chips (was Re: Old UNIX Systems) - test-drb@ccmp.vtda.org

31 May 2013

On Thu, May 30, 2013 at 6:06 PM, Dave <dave.g4ugm at gmail.com> wrote:
...
  On 30/05/2013 20:55, Ethan Dicks wrote:
 > hack the small bead of sealing epoxy at one
end of the battery... 
 I have fixed on in an Atari but this is different. It doesn't look like
 there is small bead. It looks like the whole thing has been potted in
 Epoxy.... 
The common-in-PCs DS1287 (or its successor DS12887) is entirely
encased.  The MKT02 and MKT08, etc, used in Sun equipment
has an epoxy-covered "bridge" at the nose and tail of the IC body
that conceals the connections to the crystal and the battery up in
the epoxy block on top.  It's on the order of 1mm x 2mm and is
shiny black, not matte black.

-ethan