| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MC74HC157ADTR2 | Quad 2-Input Data Selectors/Multiplexers | 182K |
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| 2 | MC74HC157ADTR2 | Quad 2−Input Data Selectors / Multiplexers | 118K |
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| 3 | MC74HC157ADTR2G | Quad 2−Input Data Selectors / Multiplexers | 118K |
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