[Coco] Hitachi HD63C09 Question

[jdaggett at gate.net]

On 20 Jun 2007 at 22:00, George's Coco Address wrote:

> Since you've asked this before and no one has replied, I would assume
> that no one has tried it, or won't admit to it. It is an interesting
> query.
> 
**************

KInd of why I am asking is I am working on a project that has a lot of 3.3V logic. If 
the processor would run at that voltage then it would simplify interfacing the 
processor to the rest of the circuit. I was just wondering if anyone had tried before 
I did. 

james 
> ----- Original Message ----- 
> From: <jdaggett at gate.net>
> To: "coCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Wednesday, June 20, 2007 8:41 PM Subject: [Coco] Hitachi HD63C09
> Question
> 
> 
> >I know the Coco Community has used the Hitachi 6309 chip for a while.
> >Most
> > operation has centered around speeding up the 63C09E be yond 3MHz. I
> > was wondering if anyone has experimented running the MPU at or below
> > 2MHz and at 3.3VDC instead of 5VDC? IF the 63C09 was designed in the
> > mid 80's then it is possible that at normal speeds the 63C09E just
> > might run at 3.3VDC.
> >
> > Has anyone attempted or does anyone know of any tests done with
> > lower VDC?
> >
> > james
> >
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> 
> 
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