| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MC54HC240A | Octal 3-State Inverting Buffer/Line Driver/Line Receiver | 112K |
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| 2 | MC54HC240A | Octal 3-State Inverting Buffer/Line Driver/Line Receiver | 175K |
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| 3 | MC54HC240AJ | Octal 3-State Inverting Buffer/Line Driver/Line Receiver | 120K |
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