| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | IN74HC139A | Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS | 105K |
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| 2 | IN74HC139A | Dual 1-of-4 Decoder/Demultiplexer | 214K |
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| 3 | IN74HC139AD | Dual 1-of-4 Decoder/Demultiplexer | 214K |
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| 4 | IN74HC139AN | Dual 1-of-4 Decoder/Demultiplexer | 214K |
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