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寄存器移位SN74LS164N芯片
74LS163N74LS163P74LS164D74LS164J
GD74LS166D16474LS166D全新
16474HC全新
74LS164P74LS164N74LS165A74LS165D
SN74LS164JSN74LS164DSN74LS164NSN74LS165A
寄存器移位贴片SN74LS164DR
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