| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | MC74AC4040D | 12-STAGE BINARY RIPPLE COUNTER | 122K |
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| 2 | MC74AC4040D | 12-STAGE BINARY RIPPLE COUNTER | 139K |
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| 3 | MC74AC4040D | 12−Stage Binary Ripple Counter | 86K |
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| 4 | MC74AC4040DG | 12−Stage Binary Ripple Counter | 86K |
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| 5 | MC74AC4040DR2 | 12−Stage Binary Ripple Counter | 86K |
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| 6 | MC74AC4040DR2G | 12−Stage Binary Ripple Counter | 86K |
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