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From: daveh@cbmvax.cbm.UUCP (Dave Haynie)
Newsgroups: comp.sys.apple
Subject: Re: 6502, 65C02, 65802, 65C802, 65816 and the 65C816
Message-ID: <1568@cbmvax.cbmvax.cbm.UUCP>
Date: Tue, 17-Mar-87 13:25:45 EST
Article-I.D.: cbmvax.1568
Posted: Tue Mar 17 13:25:45 1987
Date-Received: Thu, 19-Mar-87 00:39:30 EST
References: <5705@reed.UUCP>
Distribution: world
Organization: Commodore Technology, West Chester, PA
Lines: 36

in article <5705@reed.UUCP>, kamath@reed.UUCP (Sean Kamath) says:

> As for speed up boards, as far as I know, the fastest a 6502 can go is
> 3MHz (6502B).  65C02 - 4MHz. I don't know how fast the 802 and 816 go,
> but I am sure that in a little while (if not already) they'll have 8 MHz
> versions out.  So if you have a speedup board that runs at 2 MHz, you
> might as well have a 6502 in it as a 802!  Unless the SOFTWARE takes
> advantage of it.
> 
> Sean Kamath
> kamath@reed.edu.UUCP
> tektronix!reed!kamath

As of last fall, GTE, who's the only vendor of 65C802s and 65C816s, had
2MHz versions of both in quantity, 4MHz versions of the 65802s to whomever
wanted them, and enough 65C816s to sell to Apple for around $8 a piece.
They hadn't produced anything in the 65C02 line at 4MHz yet in production
quantities, though they were in the process of redesigning the 65C02 to
run at 4MHz.  Rockwell MAY have had 4MHz 65C02s longer, I'm not sure about
them.  MOS, who invented the 6502, only makes NMOS versions, and their
fastest 6502 family chip is the the C128, running at 2.04MHz.   Most of the
data sheets supplied on 65C02s list 4MHz parts, and the 65C802/65C816
data sheets list 8MHz parts.  The reason for this is, in very small 
quantites, you can probably get these parts, or some close to them.  I
know GTE can deliver a 6MHz 65C802, but these are basically just 4MHz
parts that pass the 6MHz test.  They're hand picked; OK for hobbiests or
small companies that make accelerator cards, but useless for big companies
that Apple that sometimes make 20,000 computers a month or more.
-- 
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Dave Haynie     Commodore Technology              // /|  ___   __   __   __ 
  {ihnp4|caip|rutgers}!cbmvax!daveh          |\  // /_|     | /  \ /  \ /  \
Commodore rarely admits to knowing me,        \\// /  |  +--+ |  | |  | |  |
  much less sharing my personal opinions.      \/ /   |  |___ \__/ \__/ \__/

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