BUFFER/DRIVER,dual,4-BIT,AC-CMOs,sOP,16PIN,PLAsTIC BUFFER/DRIVER,dual,4-BIT,AC-CMOs,TssOP,16PIN,PLAsTIC BUFFER/DRIVER,dual,4-BIT,AC-CMOs,TssOP,20PIN,PLAsTIC BUFFER/DRIVER,dual,4-BIT,AC-CMOs,sOP,20PIN,PLAsTIC BUFFER/DRIVER,dual,4-BIT,AC-CMOs,DIP,20PIN,PLAsTIC From old datasheet system