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

[mjmahon@aol.com (Michael J. Mahon)]

Mark C. Spaeth wrote:

>In comp.sys.apple2 Euphoric <nospam@nospam.net> wrote:
>: Browsing through the discussion at 6502.org 's forum can be tedious, and
>: Daryl doesn't read these newsgroups, so here is his original post on
>: 6502.org:
>: 
>: "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)
>
>Doesn't this seem a little ridiculous when 6502s can still be had
>for under $10?
>
>I think everyone would be happier trying to twist someone's arm (ie 
>someplace like rocelec.com) into finding, dicing, and packaging some
>old 6502 wafers (assuming WDC isn't interested), and having the real thing.
>
>In any case, I probably have well over 100 6502s in my house on arcade
>game PCBs, and that's a much bigger market than retro PCs...

I think you missed the point.

6502s and 65C02s are easy to find.  What's hard to find is a
65C02-pin- and timing-compatible processor with the 16-bit
65816 extensions.

The 65C802 was such a chip, and now someone is proposing
to build a chip-socket adapter for the 65816 to provide similar
capability (but no additional addressing).

-michael

Check out amazing quality sound for 8-bit Apples on my
Home page:  http://members.aol.com/MJMahon/