型号 / 厂家，封装，批号，备注，订购

54LS27DMQB / National Semiconductor,Datasheet,07+,TRIPLE 3-INPUT NOR G 订购 PDF文档

54LS28DMQB / Various,Datasheet,07+,NOR-Function Buffer 订购 PDF文档

54LS27J/W / ,,最新批号,原装现货 订购 PDF文档

54LS27W / TI,,08/09+,原装正品 订购 PDF文档

54LS27YB / MOT,DIP,08/09+,全新原装深圳库存 订购 PDF文档

54LS290 / ,,08/09+,原装特价 订购 PDF文档

54LS290/883 / ,,08/09+,原装特价 订购 PDF文档

54LS28 / Fairchild Semiconductor,Datasheet,07+,Full Line Condensed 订购 PDF文档

54LS290F/883 / ,,08/09+,原装特价 订购 PDF文档

54LS293 / Fairchild Semiconductor,Datasheet,07+,Full Line Condensed 订购 PDF文档