HD74HC4020FPER HD74HC4020FPEL HD74HC4017FPEL HD74HC377FPDEL
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贴插HD74HC377FPDEL-HD6433644RA62H-HD6433977SA66F-B
贴片直插HD74HC377FPDEL HD6473238F-10I LC78815MF-TE-R 9
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