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型號(hào) / 廠家，封裝，批號(hào)，備注，訂購
SN74LS642NSE4 / 原廠家,SOP,N/A,上海實(shí)貨庫存!歡迎查詢! 訂購 PDF文檔
SN74LS642NSRE4 / Texas Instruments,Datasheet,06/07+,Octal bus transceive 訂購 PDF文檔
SN74LS643-1N / TI,,08/09+,特價(jià) 訂購 PDF文檔
SN74LS644 / TI,,08/09+,原裝010-62106431 訂購 PDF文檔
SN74LS644IN / TI,,08/09+,全新原裝 訂購 PDF文檔
SN74LS644-IN / TI,DIP-20,08/09+,庫房原裝現(xiàn)貨 訂購 PDF文檔
SN74LS644NT / ,,08/09+,現(xiàn)貨特價(jià) 訂購 PDF文檔
SN74LS645 -1N / ,,08/09+,現(xiàn)貨特價(jià) 訂購 PDF文檔