型号 / 厂家，封装，批号，备注，订购

74HC257DR / TI,,02+,原装/现货 订购 PDF文档

74HC257DR2 / MOT,,03+,010-62106431 订购 PDF文档

74HC257DRS / ,,,原装现货 订购 PDF文档

74HC257F3A=5962-8512401EA / HAR,,05+,010-66001623/66001621 订购 PDF文档

74HC257FPEL / HITACHI,SOP,02+,原装010-66001623 订购 PDF文档

74HC257M(SMD,2.5K REEL) D/C91 / ,,,原装现货 订购 PDF文档

74HC257N / TOP,SOT23-5,05+, 订购 PDF文档

74HC257N,652 / PHILIPS,,,010-62106431 订购 PDF文档

74HC257PW / PHI,TSSOP,03+,全新原装 订购 PDF文档

74HC257RM13TR / ST,16,9644,全新库存特价 订购 PDF文档