| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | 74F579PC | 8-Bit Bidirectional Binary Counter with 3-STATE Outputs | 72K |
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| 2 | 74F579PC | 8-Bit Bidirectional Binary Counter with 3-STATE Outputs | 86K |
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| 3 | 74F579PCQR | 8-Bit Bidirectional Binary Counter with TRI-STATE Outputs | 201K |
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