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贴片直插SN75HVD12DRG4 SN74VC245APWR SN75C1406DRG4 5
贴片直插74VC245APWR，74VCX162827，74VHC08MTCX，74VHC240MTC
贴片直插SN74VC245APWR SN74ABT373DWR SN74LV244ADWR 5
貼片直插75076234IIS 74VHC08MTCX 74VC245APWR 74VCX162827 6
