| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | TC74HC27AFN | TRIPLE 3 INPUT NOR GATE | 246K |
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| 2 | TC74HC27AFN | TRIPLE 3 INPUT NOR GATE | 246K |
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| 3 | TC74HC27AFN | CMOS Digital Integrated Circuit Silicon Monolithic Triple 3-Input NOR Gate | 264K |
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