| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | U4089B-M | MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | 678K |
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| 2 | U4089B-M | MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | 678K |
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| 3 | U4089B-MFN | MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | 678K |
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| 4 | U4089B-MFN | MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | 678K |
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| 5 | U4089B-MFNG3 | MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | 678K |
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| 6 | U4089B-MFNG3 | MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | 678K |
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| 7 | U4089B-MSD | Speakerphone Circuit | 1315K |
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