two ways can be done. 1. make unused pins inputs and ground them. 2. make unused pins output and do not connect to any where do not ground output pins. Andre Abelian I will have several unused pins on my 16F877 Should the unused pins be set as inputs or outputs and should they be tied directly to GND or do I use a resistor. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu