The 74LS368 is fine. I found if you extend the pluse time to the 74LS374 or 74LS373 (clock input) it elementes false reads. Also extend the time delay when the +12 volts goes active to give the 1 uf capacator time to fully charge. If you get the first few location of your 8052 not to program correctly then this is your proglem. More information can be has at site "http://members.aol.com/HawaiianComputer"

Good luck

Charles Bannister