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寄存器移位双向正品
74LS193FPEL74LS240FPEL74LS241FPEL74LS175R
74LS193PC74LS193NS74LS194AN74LS194AP
SN74LS194AJSN74LS194ANSN74LS194APSN74LS194FK
HD74LS161ANSN74LS160NDIP16194
计数器HD74LS190P芯片194AP
寄存器移位双向HD74LS194AP
SN74LS194ANHD74LS194APSN74LS194NHD74LS194P
HD74LS125APHD74LS163APHD74LS194AP原装
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