型號(hào) / 廠家，封裝，批號(hào)，備注，訂購(gòu)

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74AC191SCX_NL / Fairchild Semiconductor,Datasheet,07+,Up/Down with 訂購(gòu) PDF文檔

74AC191SCX_Q / FSC,,07+,全新原裝熱賣(mài) 訂購(gòu) PDF文檔