[Coco] 6821 and 6551 compatible parts @ 14Mhz Bus Speed

coco at yourdvd.net coco at yourdvd.net
Sun Apr 29 03:25:21 EDT 2007


I was browsing around the Western Design Center (for those who don't
remember, they created the 65C816 16-bit version of the 6502, which is
what made the Apple IIgs possible). They still manufacture components,
and so I thought perhaps their 6521 PIA would come in handy as CoCo
replacement parts and their 6551 for upgrading my RS-232 Program Pak
and Modem Pak to 2-mhz operation. I was surprised to find that their
version of these parts are rated at 14Mhz, which makes since, as the
65C816 is a 14Mhz part. Their prices are reasonable for brand-new
parts. Have a look:
http://www.65c816.com
Now that's cool :-) Wish I had a 14Mhz CoCo :-(    -robert
(have these lil' ASCII faces become an annoyance yet - I seem to be
using them a lot.....)




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