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Lpc2000

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Re: 5V tolerant i/o pins

2004-03-05 by onceinfour

I suppose this is for the Philips Apps. 
OK all pins except a/d are 5V tolerant.  What level (in the high 
state) will I get on a pin configured as an output if I have a pullup 
to 5V, and what current will it draw.  Sorry to harp on, but I need 
to know what voltage level I can generate for my peripheral device, 
and what size of pull-up I can use.
Michael.

--- In lpc2000@yahoogroups.com, "philips_apps" <philips_apps@y...> 
wrote:
> Michael,
>   All the IO pins on that device are 5V tolerant EXCEPT any that 
can 
> be configured as an ADC input.  This is lacking in the 
documentation 
> and will be remedied.  In future devices the analog pins will also 
be 
> 5V tolerant.
> 
> Philips Apps.
> 
> 
> --- In lpc2000@yahoogroups.com, "onceinfour" <mmack287@h...> wrote:
> > I want to connect the LPC2114 (or other LPC2xxx) to 5V solenoid 
> > drivers (eg. UDN2981's).  Can I pull up the outputs of the LPC to 
> 5V 
> > with say 10K, to satisfy the input reqmts of the driver?
> > And secondly, I cant find a list anywhere in the datasheets of 
the 
> > LPC pins which are 5V tolerant, I notice some are specified as 
3.3V 
> + 
> > 0.6V but I cant figure out which ones, can anyone help please.
> > Michael.

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