贴片直插MC74VHC157ML1，MC74VHC14MELG，MC74VHC157DTG，4

MC74VHC14DTG | MC74VHC14DTR2G | MC74VHC157DR2G

丝印MC74VHC1G125 MC74VHC157DT MC74VHC14DTG MC74VHC14DR2

贴片直插MC74VHC240DTG，MC74VHC157MEL，MC74VHC157ML2，4