型号 / 厂家，封装，批号，备注，订购

MC74LCX257DR2G / ON,,04+原装,010-62106431 订购 PDF文档

MC74LCX257DTG / ON,TSSOP,,010-66001623/66001621 订购 PDF文档

MC74LCX257M / ON SEMI,,,全新原装 订购 PDF文档

MC74LCX257SD / CYPRESS,,02+,原装现货 订购 PDF文档

MC74LCX258DG / ON,,04+原装,010-62106431 订购 PDF文档

MC74LCX258DT / CYPRESS,,02+,原装现货 订购 PDF文档

MC74LCX2952DT / ,,07+,全新原装 订购 PDF文档

MC74LCX32ADTR2 / ON,TSSOP-16,05+,原装特价 订购 PDF文档

MC74LCX32ADTR2G / ,,,原装现货 订购 PDF文档

MC74LCX32DR2G / ON,,04+原装,010-62106431 订购 PDF文档