on 11/2/02 10:30 AM, David Duffy at piclist@AUDIOVISUALDEVICES.COM.AU wrote:

Hi Dave,

> No real difference if you are using RA4 as an input. "Open Drain" means that
> when using the pin as an output, it can drive low but not high. When you set
> RA4 high, it actually floats much like when set as an input. It you are
> driving
> another logic input with RA4, you need to add a pull-up resistor (10K will do)
> from RA4 to Vcc. This ensures that the pin will be pulled high when you set
> it high. That's about it really.  :-)

Aw, is that all? Than I've got a perfect use for the little guy! What was I
worried about? :-)

Cheers,

Sean

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