Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!calhoun
From: calhoun@cis.ohio-state.edu (robert r calhoun)
Newsgroups: comp.sys.cbm
Subject: what is this chip(65C802)
Message-ID: <41063@tut.cis.ohio-state.edu>
Date: 29 Mar 89 21:54:54 GMT
Sender: calhoun@tut.cis.ohio-state.edu
Lines: 17


	Being an engineering senior at OSU, my brother has been picking my 
	brain.  He wanted me to rig a Seagate compatible hard drive
	expansion for his C64, This has taken some time and effort, but
	finally paid off.  While I was researching the 6502, I came across
	a 65C02 which is a CMOS 4MHZ version of the 6502.  I noticed also
	that there is a 65C802.  From what I know, this appears to be an
	Advanced CMOS 8MHZ processor.  He now wants me to rearrange his 
	C64 to use the fastest 65??02 I can find.  If the 65C802 is truly
	an 8MHZ processor I calculate that he will need 100ns memory chips.
	I don't recall seeing 64k 100ns chips so I guess I'll have to 
	make it accept 256's.  (whether or not to have it access all of that
	I haven't decided.)  With this idea, I would like to know if there is
	a faster C64 video chip so that I won't have to continuously write
	a copy of video ram to the old 150ns RAM.  The wait states would be
	too harsh to consider.  Anyone who has tried any of these, I would
	greatly appreciate learning from your experiences and mistakes.