> Quick question: I have the PIC16F876 IC and I would like to run it on 3.3V > rail with 4Mhz crystal. What is the probability that the IC will run? Let's not waste time on this sort of nonsense again. The LF part will do 4MHz down to 2.0V and 10MHz at 3.0V. All the other variants require 4.0V to do 4MHz. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu