Re: 16-bit 6502 replacement bulk order : PCB schematics

[Rubywand <rubywand@swbell.net>]

Jerry Penner writes ...
> 
> Rubywand wrote:
> > Euphoric writes ...
 ....

> >>
> >>"After several months and many more revisions, I've completed laying out the
> >>traces for the converter. I still need to clean it up - straighten some
> >>traces, add 45 deg bends on the corners, check spacing around all pads and
> >>vias, etc.
> >>
> >>I added to the schematic. There are two jumpers. J2 allows you to select the
> >>gate for the 74x245 and J3 selects 2 inverters or 4 inverters as inputs to
> >>the AND gate.
> >>
> >>Check out the schematic, layout draft, and expressPCB files on my web site.
> >>
> >>http://65c02.tripod.com/conv.html
> >>
> >>Estimated cost for 10 boards would be $200. ($20 each)
> >>
> >>Daryl
> >
 ....

> 
> Is the 65802 not available anymore?  It was a 16-bit plug-in replacement
> for the 65C02 at least (not sure about the 6502).  I think I still have
> one kicking around here somewhere.
> 
 ....

     Me, too. The 65C802 never attracted much interest because the
chips available at the time of introduction offered no great
advantage vis-a-vis the 65C02 and because interest focused on the
65C816.

     Besides, you didn't have any really fast 65C802's. Anyone thinking
of a reasonably simple performance upgrade back then would have gone for 
one of the 6502- or 65C02-based accelerators. 

     A 65C816 board is interesting because the 65C816 is better than the
65C802 and it's the uP that actually got used-- e.g. in the Apple IIgs
and accelerators. So, along with having fast 65C816's to plug in, there
is a lot of 65C816 software around.



Rubywand