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Hot!Output pin Rds(on)?

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upand_at_them
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2020/08/14 16:40:15 (permalink)
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Output pin Rds(on)?

Is there a spec for the Rds(on) of an output pin of, say, a 16F1829?  I saw a mention on an electronics forum by a knowledgeable guy, saying 250 ohms combined for high and low...that was powering an LED via two port pins.  My own measurements are showing somewhat less...more like 85 ohms for the high side FET and 75 ohms for the low side.
 
I couldn't find anything in the datasheet about this.
 
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    ric
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    Re: Output pin Rds(on)? 2020/08/14 16:44:26 (permalink)
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    It varies with supply voltage and temperature.
    The best you will get is figures 31-41 to 31-46 in the datasheet.
     

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    upand_at_them
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    Re: Output pin Rds(on)? 2020/08/14 17:54:05 (permalink)
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    At least that's something.  Thanks.
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