IC快速检索：
型号 / 厂家，封装，批号，备注，订购
74LS190J / Raytheon Electronics,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS191DR / TI,3.9mm,00+,0755-83980010 订购 PDF文档
74LS191FC / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档
74LS191NA / ,,最新批号,原装现货 订购 PDF文档
74LS192DC / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS191J / Raytheon Electronics,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档
74LS192J / Raytheon Electronics,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS192W / Raytheon Electronics,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS191W / Raytheon Electronics,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档