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型號 / 廠家，封裝，批號，備注，訂購
SN74LS221DRE4 / Texas Instruments,Datasheet,07+,DUAL MONOSTABLE MULT 訂購 PDF文檔
SN74LS221D-TI / TI,,08/09+,全新原裝 訂購 PDF文檔
SN74LS221J / ,DIP,08/09+,原裝特價 訂購 PDF文檔
SN74LS221NS / MOT,DIP,08/09+,全新原裝深圳庫存 訂購 PDF文檔
SN74LS221NSE4 / 原廠家,SOP,N/A,上海實貨庫存!歡迎查詢! 訂購 PDF文檔
SN74LS221NS-EL / TI,,08/09+,010-62106431 訂購 PDF文檔
SN74LS221NSR / ,,08/09+,全新原裝深圳庫存 訂購 PDF文檔
SN74LS221N-TI / TI,,08/09+,全新原裝 訂購 PDF文檔