HD74HC590FPEL(P/B) HD74HC4052FPEL(BP) HD74HC393FP(EL，TR)
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全新HD74HC4060FP HD74HC4053FP HD74HC4052FP HD74HC4051FP
HD74HC4052FDEL HD74HC4051FPEL HD74HC4051FP-E HD74HC4040PFEL
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