| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | SP3243EHCT | High Speed Intelligent +3.0V to +5.5V RS-232 Transceivers | 236K |
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| 2 | SP3243EHCT | High Speed Intelligent +3.0V to +5.5V RS-232 Transceivers | 236K |
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| 3 | SP3243EHCT-L | 3 Driver/5 Receiver Intelligent +3.0V to +5.5V RS-232 Transceivers | 1158K |
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| 4 | SP3243EHCT-L/TR | 3 Driver/5 Receiver Intelligent +3.0V to +5.5V RS-232 Transceivers | 1158K |
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