型号 / 厂家，封装，批号，备注，订购

SN74LS244NSRG4 / Texas Instruments,Datasheet,07+,Octal Buffers And Li 订购 PDF文档

SN74LS257BD / MOTOROLA,,08/09+,全新原装深圳库存 订购 PDF文档

SN74LS244-TIT-SMD / ,,最新批号,原装现货 订购 PDF文档

SN74LS257BDE4 / Texas Instruments,Datasheet,07+,QUADRUPLE 2-LINE TO 订购 PDF文档

SN74LS245? / ,,最新批号,原装现货 订购 PDF文档

SN74LS257BDR2 / MOTOROLA,,08/09+,全新原装深圳库存 订购 PDF文档

SN74LS245ADB / HITACHI,,08/09+,全新原装深圳库存 订购 PDF文档

SN74LS257BMR1 / MOT,,08/09+,原装现货010-62565447/62566447 订购 PDF文档

SN74LS245ANS / NEC,DIP,08/09+,全新原装深圳库存 订购 PDF文档

SN74LS257BNE4 / Texas Instruments,Datasheet,06/07+,QUADRUPLE 2-LINE TO 订购 PDF文档