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贴片直插MC74VHC157MELG，MC74VHC139ML2G，MC74VHC157DR2G，4
贴片直插MC74VHC14DTR2G，MC74VHC139DTEL，MC74VHC139MELG，4
MC74VHC125DT(HC125MELG HC126D HC126DT HC138DT HC139DT
