| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MC74AC240MEL | OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS | 102K |
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| 2 | MC74AC240MEL | Octal Buffer/Line Driver with 3−State Outputs | 111K |
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| 3 | MC74AC240MELG | Octal Buffer/Line Driver with 3−State Outputs | 111K |
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