> Hi, I've got a microcontroller sending a TTL logic to a 74L14 schmidt > trigger. I found out that the inverted logic high is somewhere 4.5v to > 4.6v. Is there anyway I can make it output a perfect 5v? No. Perfect is unattainable as there will always be some error. ***************************************************************** 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.