型號(hào) / 廠家，封裝，批號(hào)，備注，訂購(gòu)

SN74LS28JDS / ,,最新批號(hào),現(xiàn)貨庫(kù)存 訂購(gòu) PDF文檔

SN-74LS28N / ,,最新批號(hào),原裝現(xiàn)貨 訂購(gòu) PDF文檔

SN74LS290FN / Texas Instruments,Datasheet,06/07+,BCD-Output Decade Up 訂購(gòu) PDF文檔

SN74LS292FN / Texas Instruments,Datasheet,06/07+,Programmable Frequen 訂購(gòu) PDF文檔

SN74LS290DR2 / On Semiconductor,Datasheet,06/07+,DECADE 4-BIT 訂購(gòu) PDF文檔

SN-74LS292N / ,,最新批號(hào),原裝現(xiàn)貨 訂購(gòu) PDF文檔

SN74LS292N3 / ,Datasheet,06/07+,Programmable 32-Bit 訂購(gòu) PDF文檔

SN74LS293DR2 / On Semiconductor,Datasheet,06/07+,DECADE 4-BIT 訂購(gòu) PDF文檔

SN74LS297AN / ,,最新批號(hào),現(xiàn)貨庫(kù)存 訂購(gòu) PDF文檔

SN74LS293FN / Texas Instruments,Datasheet,06/07+,4-Bit Binary Up Coun 訂購(gòu) PDF文檔