Thank you all for the replies, yes i read the datasheet carefully still
didn't know for sure. Since i'm designing the pcb i'd rather be a 100% sure.
Thx !!
Aart.

> > if i use PortC of the 16F877 as a "normal" output do i need to add an
> > extra pull > up resistor?  (just like Ra.4 of the 16F84, this is also
> > a ST-buffer )
>
> You could have easily found this answer in the data sheet if you had
looked.
> Page 33, section 3.3 "PORTC and the TRISC Register" clearly documents port
C
> as having totem pole outputs.  So no, you don't need a pullup resistor.
>
>
i get tired to scroll down every message so i prefer to anwser on top..

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