Any PACE users out there?

Dave McGuire mcguire at
Thu Jun 18 02:14:59 CDT 2009

On Jun 18, 2009, at 12:04 AM, Alexandre Souza wrote:
>> 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 :(

   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 McGuire
Port Charlotte, FL

More information about the cctalk mailing list