| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | SN74LS27D | TRIPLE 3-INPUT POSITIVE-NOR GATES | 229K |
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| 2 | SN74LS27D | TRIPLE 3-INPUT NOR GATE | 125K |
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| 3 | SN74LS27DE4 | TRIPLE 3-INPUT POSITIVE-NOR GATES | 229K |
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| 4 | SN74LS27DR | TRIPLE 3-INPUT POSITIVE-NOR GATES | 229K |
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| 5 | SN74LS27DRE4 | TRIPLE 3-INPUT POSITIVE-NOR GATES | 229K |
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