Quote Originally Posted by The Master View Post
dhouston, Its a PIC16F877A. Doesnt really matter much about which pin. I guess it wouldnt hurt to add diodes in myself just to be sure. I did a search for "clamp" in the datasheet so thats why i didnt find anything. "clamp" wont find a diagram
Look at the diagrams in section 4.0 I/O PORTS. Most of the pin diagrams have the following... Note 1: I/O pins have protection diodes to VDD and VSS.