型號(hào) / 廠家，封裝，批號(hào)，備注，訂購

DM54LS490N / National Semiconductor,Datasheet,07+,Dual Decade 訂購 PDF文檔

DM54LS491A / National Semiconductor,Datasheet,07+,10-Bit 訂購 PDF文檔

DM54LS491AJ/883 / National Semiconductor,Datasheet,06/07+,Binary Up-Down 訂購 PDF文檔

DM54LS491J/883 / National Semiconductor,Datasheet,07+,Binary Up-Down 訂購 PDF文檔

DM54LS498 / National Semiconductor,Datasheet,06/07+,Octal Shift Register 訂購 PDF文檔

DM54LS83A / National Semiconductor,Datasheet,06/07+,4-Bit Binary Adder w 訂購 PDF文檔

DM54LS498AJ / National Semiconductor,Datasheet,07+,Octal Shift Register 訂購 PDF文檔

DM54LS498J / National Semiconductor,Datasheet,07+,8-Bit Shift Register 訂購 PDF文檔

DM54LS83AW/883 / National Semiconductor,Datasheet,07+,4-Bit Parallel Full 訂購 PDF文檔

DM54LS498J/883 / National Semiconductor,Datasheet,06/07+,8-Bit Shift Register 訂購 PDF文檔