| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74F779 | 8-bit bidirectional binary counter 3-State | 103K |
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| 2 | 74F779 | 8-Bit Bidirectional Binary Counter with 3-STATE Outputs | 76K |
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| 3 | 74F779PC | 8-Bit Bidirectional Binary Counter with 3-STATE Outputs | 76K |
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| 4 | 74F779PCQR | 8-Bit Bidirectional Binary Counter with TRI-STATE Outputs | 180K |
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| 5 | 74F779SC | 8-Bit Bidirectional Binary Counter with 3-STATE Outputs | 76K |
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| 6 | 74F779SCX | Synchronous Up/Down Counter | 76K |
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