IC快速检索：
型号 / 厂家，封装，批号，备注，订购
74LS221J / Raytheon Electronics,Datasheet,07+,Dual Monostable Mult 订购 PDF文档
74LS221SJ / FAIRCHILD,SOP5.2,N/A,上海实货库存!欢迎查询! 订购 PDF文档
74LS221W / Raytheon Electronics,Datasheet,07+,Dual Monostable Mult 订购 PDF文档
74LS22FC / Various,Datasheet,07+,4-Input NAND-Functio 订购 PDF文档
74LS21W / Raytheon Electronics,Datasheet,07+,4-Input AND-Function 订购 PDF文档
74LS221-N / ,,最新批号,原装现货 订购 PDF文档
74LS221TJ / ,,最新批号,原装现货 订购 PDF文档
74LS22W / Raytheon Electronics,Datasheet,07+,4-Input NAND-Functio 订购 PDF文档