IC快速检索：
型号 / 厂家，封装，批号，备注，订购
74LS399DC / Fairchild Semiconductor,Datasheet,07+,2-Line Digital Multi 订购 PDF文档
74LS399PC / Fairchild Semiconductor,Datasheet,07+,2-Line Digital Multi 订购 PDF文档
74LS40W / Raytheon Electronics,Datasheet,07+,NAND-Function Buffer 订购 PDF文档
74LS42DR / ,,最新批号,原装现货 订购 PDF文档
74LS42J / Raytheon Electronics,Datasheet,07+,BCD-to-One-of-Ten De 订购 PDF文档
74LS43J / Raytheon Electronics,Datasheet,07+,Excess-3-to-Decimal 订购 PDF文档
74LS43W / Raytheon Electronics,Datasheet,07+,Excess-3-to-Decimal 订购 PDF文档
74LS447DC / Various,Datasheet,07+,7-Segment Display Dr 订购 PDF文档
74LS44J / Raytheon Electronics,Datasheet,07+,Excess-3-Gray-to-Dec 订购 PDF文档