型號(hào) / 廠家，封裝，批號(hào)，備注，訂購(gòu)

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

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

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

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

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

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

DM74S287J/A+ / National Semiconductor,Datasheet,06/07+,Fuse-Programmable PR 訂購(gòu) PDF文檔

DM74S288A / National Semiconductor,Datasheet,06/07+,1K x 8 TTL PROM Memo 訂購(gòu) PDF文檔

DM74S288AJ/A+ / National Semiconductor,Datasheet,06/07+,Fuse-Programmable PR 訂購(gòu) PDF文檔

DM74S288AV? / ,,最新批號(hào),原裝現(xiàn)貨 訂購(gòu) PDF文檔