型号 / 厂家，封装，批号，备注，订购

74HC451A / ,,,原装现货 订购 PDF文档

74HC452 / ,,,绝对现货 订购 PDF文档

74HC4520AP / TOSHIBA,,05+,010-66001623/66001621 订购 PDF文档

74HC4520B1 / ST,DIP,96+,优势现货库存 订购 PDF文档

74HC4520BIR / ST,,DIP,现货库存 订购 PDF文档

74HC4520D / TI,SOT23-3,05+, 订购 PDF文档

74HC4520D,118 / ,,,原装现货 订购 PDF文档

74HC4520D.112PBF / PH,,05+,原装特价 订购 PDF文档

74HC4520DB / PHI/SSOP,,2002,优势现货库存 订购 PDF文档

74hc4520m1tr / PHILIPS,,05+,全新原装现货 订购 PDF文档