型号 / 厂家，封装，批号，备注，订购

SN74LS640-1DBE4 / 原厂家,SSOP,N/A,上海实货库存!欢迎查询! 订购 PDF文档

SN74LS640-1DW / TI,,08/09+,原装特价 订购 PDF文档

SN74LS640-1N / TEXAS,DIP,08/09+,原装特价 订购 PDF文档

SN74LS640-1NE4 / Texas Instruments,Datasheet,06/07+,Octal bus transceive 订购 PDF文档

SN74LS640-1NSE4 / 原厂家,SOP,N/A,上海实货库存!欢迎查询! 订购 PDF文档

SN74LS640-1NSRE4 / Texas Instruments,Datasheet,06/07+,Octal bus transceive 订购 PDF文档

SN74LS640AN / ON,,08/09+,原装010-62106431 订购 PDF文档

SN74LS640DWE4 / Texas Instruments,Datasheet,07+,Octal bus transceive 订购 PDF文档

SN74LS640DWR / TI,SOP,08/09+,全新原装 订购 PDF文档

SN74LS640DWR2 / MOTOROLA,,08/09+,全新原装深圳库存 订购 PDF文档