dr. Imre Bartfai wrote :

> On Mon, 22 Nov 2004, Jan-Erik Soderholm wrote:

I did NOT !!
Please be carefull when quoting. The calculation below
was from the original poster.

> 
> [SNIP]
> >
> >> Looks like PORTA pins can sink 25mA, so that's 5/0.25=20R, right?
> >

> NO! The formula is 5/0.025 and this gives 200R. The nearest standard 
> value is 220R which may be used on the sure side. 20R is a mistake!

Which wasn't interesting anyway, since the original poster was
talking about an *input* pin (from a switch) in this case. This was
cleared out later in the same thread.

Best Regards,
Jan-Erik.
_______________________________________________
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist