What are you talking about?
https://www.digikey.com/product-detail/en/maxim-integrated/DS12885/DS12885-ND/1196867
-Alan
On 2017-11-21 14:16, Maciej W. Rozycki via cctech wrote:
On Mon, 13 Nov 2017, systems_glitch wrote:
Good stuff! I recently designed a module to build new DS1287 and
DS12887
modules from the bare DS1285 and DS12885 ICs:
https://imgur.com/a/cgKm5
Nice!
That wouldn't solve my problem though, given the apparent
unavailability
of DS1285 chips (in any packaging, whether surplus or used), compared
with
the ubiquity of used DS1287 and DS1287A ones, possibly because they
were
often socketed. Using my systems as a reference for the Linux port I
want
to avoid any deviation from their original specification so that
software
does not make use of it by chance.
As to the DS12887 and DS12887A chips -- these are still manufactured
and
readily available, as someone mentioned a while ago, although a bit
highly
priced, so either reworking an old one or using your alternative does
help
cutting cost, which may especially matter if you need more than just a
few.
Maciej
