| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74LVQ240SC | Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs | 90K |
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| 2 | 74LVQ240SC | Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs | 67K |
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| 3 | 74LVQ240SCX | Dual 4-Bit Inverting Buffer/Driver | 64K |
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