[Coco] 6821 and 6551 compatible parts @ 14Mhz Bus Speed
goosey at virgo.sdc.org
Mon Apr 30 03:21:47 EDT 2007
>Date: Sun, 29 Apr 2007 11:12:57 -0500
>From: Joel Ewy <jcewy at swbell.net>
>coco at yourdvd.net wrote:
>> 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
>Looks as if they're even pin-compatible. Nice! Even makes me wonder
>what I could do with some of the spare 68000 chips I have lying around...
That has to be on an asynchronous bus... I mean, no way did the IIGS
come with 35 ns memory.
Willard Goosey goosey at sdc.org
Socorro, New Mexico, USA
"I've never been to Contempt! Isn't that somewhere in New Mexico?"
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