HD74HC4052FPELHD74HC590FPELHD74HC393FPTR
HC74HD全新
HD74HC393RPELHD74HC393FPTL全新4538
HD74HC393FPHD74HC393RPHD74HC4017PHD74HC4020B
中体HD74HC393FPEL正品HD74HC393FP
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HD74HC123AFPHD74HC139FP原装74LS14
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二进制集成电路封装HD74HC393FP
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