IC快速检索：
型号 / 厂家，封装，批号，备注，订购
74LS89 / Fairchild Semiconductor,Datasheet,07+,Full Line Condensed 订购 PDF文档
74LS89FC / Various,Datasheet,07+,General-Purpose Stat 订购 PDF文档
74LS89PC / Various,Datasheet,07+,General-Purpose Stat 订购 PDF文档
74LS90FC / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS90J / Raytheon Electronics,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS90ND / ,,最新批号,原装现货 订购 PDF文档
74LS91W / Raytheon Electronics,Datasheet,07+,8-Bit Shift Register 订购 PDF文档
74LS92NS / ,,最新批号,原装现货 订购 PDF文档
74LS92W / Raytheon Electronics,Datasheet,07+,Binary Up 订购 PDF文档