| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74ALS161 | Synchronous Four-Bit Counter | 94K |
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| 2 | 74ALS161 | Synchronous Four-Bit Counter | 94K |
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| 3 | 74ALS161B | 4-bit binary counter | 172K |
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| 4 | 74ALS161BD | 4-bit binary counter | 172K |
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| 5 | 74ALS161BDB | 4-bit binary counter | 172K |
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| 6 | 74ALS161BN | 4-bit binary counter | 172K |
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