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贴片直插SN74LS541ML1G，SN74LS393ML2G，SN74LS541MELG，4
贴片直插SN74LS641MEL SN74LS541ML1 SN74LS541MR1 4
贴片直插SN74LS541NG/SN74LS42ML1/SN74LS38ML2/SN74LS393DG/4
贴片直插SN74LS541MEL SN74LS393MEL SN74LS42ML1G 4
贴片直插SN74LS377NG/SN74LS38ML1/SN74LS541MG/SN74LS42MEL/4
