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I/O voltage at 1.8V?

I/O voltage at 1.8V?

2004-03-19 by Matthias Weingart

Is it possible to work with 1.8V for the I/O (Vdd3)? There are many
cases where no external 3.3V logic is needed and I could live with 1.8V
levels at the outputs. But this seems not possible with current devices.
Maybe with future ones?

Matthias

Re: I/O voltage at 1.8V?

2004-03-19 by redsp@yahoo.com

--- In lpc2000@yahoogroups.com, Matthias Weingart <lpc2000@p...> wrote:
> Is it possible to work with 1.8V for the I/O (Vdd3)? There are many
> cases where no external 3.3V logic is needed and I could live with 1.8V
> levels at the outputs. But this seems not possible with current devices.
> Maybe with future ones?
> 
> Matthias

I think the Philips app guy said the Vio also powers the analog core.
 Are you using the analog circuits?  If not, you may have a chance at
1.8v for the core.

Re: I/O voltage at 1.8V?

2004-03-19 by redsp@yahoo.com

--- In lpc2000@yahoogroups.com, redsp@y... wrote:
> --- In lpc2000@yahoogroups.com, Matthias Weingart <lpc2000@p...> wrote:
> > Is it possible to work with 1.8V for the I/O (Vdd3)? There are many
> > cases where no external 3.3V logic is needed and I could live with
1.8V
> > levels at the outputs. But this seems not possible with current
devices.
> > Maybe with future ones?
> > 
> > Matthias
> 
> I think the Philips app guy said the Vio also powers the analog core.
>  Are you using the analog circuits?  If not, you may have a chance at
> 1.8v for the core.

Opps, make that, "If not, you may have a chance at 1.8v for the *IO*."

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