型號 / 廠家，封裝，批號，備注，訂購

DM7551D / National Semiconductor,Datasheet,06/07+,Single D-Type Flip-F 訂購 PDF文檔

DM7552W / National Semiconductor,Datasheet,07+,BCD-Output Decade Up 訂購 PDF文檔

DM7553J / National Semiconductor,Datasheet,07+,Octal R-S-Type Latch 訂購 PDF文檔

DM7553W / National Semiconductor,Datasheet,07+,Octal R-S-Type Latch 訂購 PDF文檔

DM75493J / National Semiconductor,Datasheet,07+,Interface IC Data Bo 訂購 PDF文檔

DM7554W / National Semiconductor,Datasheet,07+,4-Bit Binary Up Coun 訂購 PDF文檔

DM7555N / National Semiconductor,Datasheet,07+,BCD-Output Decade Up 訂購 PDF文檔

DM7556 / National Semiconductor,Datasheet,06/07+,TRI-STATE(R) Program 訂購 PDF文檔

DM7555W / National Semiconductor,Datasheet,07+,BCD-Output Decade Up 訂購 PDF文檔

DM7556N / National Semiconductor,Datasheet,07+,Modulo-N Up 訂購 PDF文檔