| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | CD74HC192PWE4 | High-Speed CMOS Logic Presettable Synchronous 4-Bit Up/Down Counters | 524K |
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| 2 | CD74HC192PWE4 | High-Speed CMOS Logic Presettable Synchronous 4-Bit Up/Down Counters | 383K |
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| 3 | CD74HC192PWE4 | High-Speed CMOS Logic Presettable Synchronous 4-Bit Up/Down Counters | 668K |
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