> I am planning to drive 16 servos directly from the PIC16F877's ports. Is it > OK? Do I need a buffer (74LS367?) Depends on what you mean by "servo", and what kind of input characteristics this servo has. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.