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贴片直插TC74VHC541FT，TC74VHC393FK，TC74VHC540FT，4
TC74VHC32FK(EL,K)(74VHC32 74VHC374 74VHC393 74VHC4020 FT
贴片直插TC74VHC393FN，TC74VHC373FT，TC74VHC374FK，4
贴片直插TC74VHC541FT，TC74VHC393FT，TC74VHC541FK，4
