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贴片直插MC74VHC157ML1，MC74VHC14MELG，MC74VHC157DTG，4
贴片直插MC74VHC1G08DFT，MC74VHC157DTR2，MC74VHC157ML1G，4
贴片直插MC74VHC157DR2，MC74VHC14ML1G，MC74VHC14ML2G，4
贴片直插MC74VHC240DT，MC74VHC14ML1，MC74VHC157DG，4
