型號(hào) / 廠家，封裝，批號(hào)，備注，訂購

DM74LS469AJ / National Semiconductor,Datasheet,07+,8-Bit Up/Down e 訂購 PDF文檔

DM74LS469AN / National Semiconductor,Datasheet,07+,8-Bit Up/Down e 訂購 PDF文檔

DM74LS471J/A+ / National Semiconductor,Datasheet,07+,Fuse-Programmable PR 訂購 PDF文檔

DM74LS490 / National Semiconductor,Datasheet,06/07+,Dual Decade 訂購 PDF文檔

DM74LS490M / National Semiconductor,Datasheet,07+,BCD-Output Decade Up 訂購 PDF文檔

DM74LS490N / National Semiconductor,Datasheet,07+,BCD-Output Decade Up 訂購 PDF文檔

DM74LS491 / National Semiconductor,Datasheet,06/07+, 訂購 PDF文檔

DM74LS491A / National Semiconductor,Datasheet,07+,10-Bit 訂購 PDF文檔

DM74LS491AV / National Semiconductor,Datasheet,07+,10-Bit 訂購 PDF文檔

DM74LS498A / National Semiconductor,Datasheet,07+,Octal Shift Register 訂購 PDF文檔