IC快速检索：
型号 / 厂家，封装，批号，备注，订购
74LS289 / Fairchild Semiconductor,Datasheet,07+,64-BIT RANDOM ACCESS 订购 PDF文档
74LS28DC / Various,Datasheet,07+,NOR-Function Buffer 订购 PDF文档
74LS28J / Raytheon Electronics,Datasheet,07+,NOR-Function Buffer 订购 PDF文档
74LS290FC / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS290QQ / ,,最新批号,原装现货 订购 PDF文档
74LS28W / Raytheon Electronics,Datasheet,07+,NOR-Function Buffer 订购 PDF文档
74LS293DC / Various,Datasheet,07+,4-Bit Binary Up Coun 订购 PDF文档
74LS290DC / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档
74LS293FC / Various,Datasheet,07+,4-Bit Binary Up Coun 订购 PDF文档