TC74VHC240FK(EL,K) TC74VHC240FK(ELK) TC74VHC240FS TC74VHC240FS(EL) TC74VHC240FS-EL TC74VHC240FT TC74VHC240FT- TC74VHC240FT(EL) TC74VHC240FT(ELK) TC74VHC240FT(SPL)