| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | SN74ALS232B | 16 】 4 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORY | 127K |
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| 2 | SN74ALS232BDW | 16 】 4 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORY | 127K |
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| 3 | SN74ALS232BFN | 16 】 4 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORY | 127K |
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| 4 | SN74ALS232BN | 16 】 4 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORY | 127K |
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