| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | PI74LPT244L | Dual 4-Bit Non-Inverting Buffer/Driver | 173K |
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| 2 | PI74LPT244L | Fast CMOS 3.3V 8-Bit Buffer/Line Driver | 555K |
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| 3 | PI74LPT244LE | Fast CMOS 3.3V 8-Bit Buffer/Line Driver | 555K |
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