型号 / 厂家，封装，批号，备注，订购

74H53DC / FC,,,特价 订购 PDF文档

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74H53PC / Various,Datasheet,07+,2-2-2-3-Input AND-OR 订购 PDF文档

74H54 / FAIRCHILD,,N/A,010-62106431 订购 PDF文档

74H54DC / Various,Datasheet,07+,2-2-2-3-Input AND-OR 订购 PDF文档

74H54J / ,,,原装现货 订购 PDF文档

74H54PC / Various,Datasheet,07+,2-2-2-3-Input AND-OR 订购 PDF文档

74H55N / SYNCMOS,DIP,,现货特价 订购 PDF文档

74H574 / ,,,010-62106431 订购 PDF文档

74H574D / PHILIPS,,,全新原装 订购 PDF文档