| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | IN74HCT244ADW | Octal 3-State Noninverting Buffer/Line Driver/Line Receiver | 67K |
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| 2 | IN74HCT244ADW | Octal 3-State Noninverting Buffer/Line Driver/Line Receiver High-Performance Silicon-Gate CMOS | 297K |
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