| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | KK74ACT193 | Presettable 4-Bit Binary UP/DOWN Counter High-Speed Silicon-Gate CMOS | 520K |
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| 2 | KK74ACT193D | Presettable 4-Bit Binary UP/DOWN Counter High-Speed Silicon-Gate CMOS | 520K |
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| 3 | KK74ACT193N | Presettable 4-Bit Binary UP/DOWN Counter High-Speed Silicon-Gate CMOS | 520K |
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