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型號(hào) / 廠家，封裝，批號(hào)，備注，訂購(gòu)
SN74LS221DBRE4 / Texas Instruments,Datasheet,06/07+,DUAL MONOSTABLE MULT 訂購(gòu) PDF文檔
SN74LS221DE4 / Texas Instruments,Datasheet,07+,DUAL MONOSTABLE MULT 訂購(gòu) PDF文檔
SN74LS221DR / TI,3.9m,08/09+,全新原裝 訂購(gòu) PDF文檔
SN74LS221DR2 / MOTOROLA,,08/09+,全新原裝深圳庫(kù)存 訂購(gòu) PDF文檔
SN74LS221DRE4 / Texas Instruments,Datasheet,07+,DUAL MONOSTABLE MULT 訂購(gòu) PDF文檔
SN74LS221D-TI / TI,,08/09+,全新原裝 訂購(gòu) PDF文檔
SN74LS221J / ,DIP,08/09+,原裝特價(jià) 訂購(gòu) PDF文檔
SN74LS221NS / MOT,DIP,08/09+,全新原裝深圳庫(kù)存 訂購(gòu) PDF文檔
SN74LS221NSE4 / 原廠家,SOP,N/A,上海實(shí)貨庫(kù)存!歡迎查詢! 訂購(gòu) PDF文檔