| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MM74HC161MTC | Synchronous Binary Counter with Asynchronous Clear . Synchronous Binary Counter with Synchronous Clear | 87K |
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| 2 | MM74HC161MTC | Synchronous Binary Counter with Asynchronous Clear Synchronous Binary Counter with Synchronous Clear | 110K |
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