型號(hào) / 廠家，封裝，批號(hào)，備注，訂購

DM74S257CW / Fairchild Semiconductor,Datasheet,07+,Quad 3-STATE 2-to-1 訂購 PDF文檔

DM-74S257N. / ,,,原裝現(xiàn)貨 訂購 PDF文檔

DM74S270J / National Semiconductor,Datasheet,07+,General Purpose 訂購 PDF文檔

DM74S271J / National Semiconductor,Datasheet,07+,General Purpose 訂購 PDF文檔

DM74S271N / National Semiconductor,Datasheet,07+,General Purpose 訂購 PDF文檔

DM74S280N? / ,,最新批號(hào),原裝現(xiàn)貨 訂購 PDF文檔

DM74S280WM / National Semiconductor,Datasheet,07+,9-Bit Parity Generat 訂購 PDF文檔

DM74S283 / Fairchild Semiconductor,Datasheet,07+,4-Bit Binary Adder w 訂購 PDF文檔

DM74S283N? / ,,最新批號(hào),原裝現(xiàn)貨 訂購 PDF文檔

DM74S287AJ/A+ / National Semiconductor,Datasheet,07+,Fuse-Programmable PR 訂購 PDF文檔