SN74BCT540ANSR
SN74BCT540ANSRE4
SN74BCT540ANSRG4
SN74BCT541ADB
SN74BCT541ADBE4
SN74BCT541ADBG4
SN74BCT541ADBR
SN74BCT541ADW
SN74BCT541ADWE4
SN74BCT541ADWG4