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型号 / 厂家,封装,批号,备注,订购

DM74S257 / Fairchild Semiconductor,Datasheet,06/07+,3-STATE Quad 1-of-2 订购 PDF文档

DM74S257CW / Fairchild Semiconductor,Datasheet,07+,Quad 3-STATE 2-to-1 订购 PDF文档

DM-74S257N. / ,,,原装现货 订购 PDF文档

DM74S270J / National Semiconductor,Datasheet,07+,General Purpose 订购 PDF文档

DM74S271J / National Semiconductor,Datasheet,07+,General Purpose 订购 PDF文档

DM74S271N / National Semiconductor,Datasheet,07+,General Purpose 订购 PDF文档

DM74S280N? / ,,最新批号,原装现货 订购 PDF文档

DM74S280WM / National Semiconductor,Datasheet,07+,9-Bit Parity Generat 订购 PDF文档

DM74S283 / Fairchild Semiconductor,Datasheet,07+,4-Bit Binary Adder w 订购 PDF文档

DM74S283N? / ,,最新批号,原装现货 订购 PDF文档