型號(hào) / 廠家，封裝，批號(hào)，備注，訂購(gòu)

74LS283W / Raytheon Electronics,Datasheet,07+,4-Bit Parallel Full 訂購(gòu) PDF文檔

74LS289 / Fairchild Semiconductor,Datasheet,07+,64-BIT RANDOM ACCESS 訂購(gòu) PDF文檔

74LS28DC / Various,Datasheet,07+,NOR-Function Buffer 訂購(gòu) PDF文檔

74LS28J / Raytheon Electronics,Datasheet,07+,NOR-Function Buffer 訂購(gòu) PDF文檔

74LS290FC / Various,Datasheet,07+,BCD-Output Decade Up 訂購(gòu) PDF文檔

74LS290QQ / ,,最新批號(hào),原裝現(xiàn)貨 訂購(gòu) PDF文檔

74LS28W / Raytheon Electronics,Datasheet,07+,NOR-Function Buffer 訂購(gòu) PDF文檔

74LS293DC / Various,Datasheet,07+,4-Bit Binary Up Coun 訂購(gòu) PDF文檔

74LS290DC / Various,Datasheet,07+,BCD-Output Decade Up 訂購(gòu) PDF文檔

74LS293FC / Various,Datasheet,07+,4-Bit Binary Up Coun 訂購(gòu) PDF文檔