型号 / 厂家，封装，批号，备注，订购

74AC257MTC. / FAIRCHILD,,08/09+,全新原装深圳库存 订购 PDF文档

74AC257PC_NL / Fairchild Semiconductor,Datasheet,07+,Quad 2-Input Multipl 订购 PDF文档

74AC257PMQB / National Semiconductor,Datasheet,07+,Quad 2-Input Multipl 订购 PDF文档

74AC257-R / ,,最新批号,原装现货 订购 PDF文档

74AC257SCQR / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

74AC257SCX_Q / FSC,,07+,全新原装热卖 订购 PDF文档

74AC257SMQB / National Semiconductor,Datasheet,07+,Quad 2-Input Multipl 订购 PDF文档

74AC257TTR / ST Microelectronics,Datasheet,07+,QUAD 2 CHANNEL MULTI 订购 PDF文档

74AC258DC / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

74AC258DCQR / National Semiconductor,Datasheet,07+,Quad 2-Input Multipl 订购 PDF文档