型號 / 廠家，封裝，批號，備注，訂購

SN74LS21N / Motorola,,08/09+,全新原裝 訂購 PDF文檔

SN74LS21NA16 / 原廠家,PDIP,N/A,上海實貨庫存!歡迎查詢! 訂購 PDF文檔

SN74LS21NE4 / Texas Instruments,Datasheet,06/07+,Dual 4-input Positiv 訂購 PDF文檔

SN74LS21NS 中體 / TI,,N/A,上海實貨庫存!歡迎查詢! 訂購 PDF文檔

SN74LS21NSE4 / 原廠家,SOP,N/A,上海實貨庫存!歡迎查詢! 訂購 PDF文檔

SN74LS21NSRE4 / Texas Instruments,Datasheet,07+,Dual 4-input Positiv 訂購 PDF文檔

SN74LS21P / MIT,,08/09+,特價 訂購 PDF文檔

SN74LS221DBR / ,,08/09+,全新原裝深圳庫存 訂購 PDF文檔

SN74LS221DBRE4 / Texas Instruments,Datasheet,06/07+,DUAL MONOSTABLE MULT 訂購 PDF文檔

SN74LS221DE4 / Texas Instruments,Datasheet,07+,DUAL MONOSTABLE MULT 訂購 PDF文檔