SN74AHCT540NSG4
SN74AHCT540NSR
SN74AHCT540NSRE4
SN74AHCT540NSRG4
SN74AHCT540PW
SN74AHCT540PWE4
SN74AHCT540PWG4
SN74AHCT540PWR
SN74AHCT540PWRE4
SN74AHCT540PWRG4