IC快速检索：
型号 / 厂家，封装，批号，备注，订购
SN74LS540DBRE4 / Texas Instruments,Datasheet,07+,OCTAL BUFFERS and LI 订购 PDF文档
SN74LS540DW / TI,,08/09+,010-62106431 订购 PDF文档
SN74LS540DWR2 / MOTOROLA,,08/09+,010-62106431 订购 PDF文档
SN74LS540J / ,,08/09+,全新原装现货库存 订购 PDF文档
SN74LS540N / TI,20PIN,08/09+,全新原装 订购 PDF文档
SN74LS540NE4 / Texas Instruments,Datasheet,07+,OCTAL BUFFERS and LI 订购 PDF文档
SN74LS540NS / TI,SOP,08/09+,全新原装 订购 PDF文档
SN74LS540NSRE4 / Texas Instruments,Datasheet,06/07+,OCTAL BUFFERS and LI 订购 PDF文档