型號(hào) / 廠家，封裝，批號(hào)，備注，訂購(gòu)

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74F257ASJ_NF042 / FSC,,07+,全新原裝熱賣(mài) 訂購(gòu) PDF文檔

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74F253FC / Various,Datasheet,07+,4-Line Digital Multi 訂購(gòu) PDF文檔

74F257L1C / Various,Datasheet,07+,2-Line Digital Multi 訂購(gòu) PDF文檔