18 Jun
2009
18 Jun
'09
12:14 a.m.
On Jun 18, 2009, at 12:04 AM, Alexandre Souza wrote:
Did you have problems with air bubbles, or something else? The
way to solve air bubble problems is to place it under vacuum before
it cures.
-Dave
--
Dave McGuire
Port Charlotte, FL
One problem
with taking advantage of a PACE chip (free or
otherwise) is
that the I/O pads aren't compatible with TTL, or with much of
anything
else either. The specs are very strange. National made some
buffer and
transceiver chips designed to work with it, but of course they are
even
more like unobtanium these days than the PACE itself. I suspect that
the easiest thing to interface to it nowdays would be CD4000B series
CMOS logic, which is extremely slow, but then so is the PACE.
No, I'm not talking about the PACE chip, but the keyfob with the
386 die encased in plastic :o)
I never got to encase in resin a chip and make it crystal clear.
I tried many many times with no success :(