Mike Hord wrote :

> With PORTB as inputs, and the internal pullups enabled,
> the current draw is, you guessed it, 825 uA.

What about if the wpu's are disabled ?

> The datasheet tells me that at 5V, I should expect Ipu to
> be not more than 400 uA.

I read that value (Ipu) to be *per* pin. If a pin with
spu enabled is tied to Vss (gnd), you will have aprox 400uA
(= Ipu) floating through the wpu, out from the pin to gnd.

Jan-Erik.



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