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? thanks mark _________________________________________________________________ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.