| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | DM74ALS640AWM | Inverting Octal Bus Transceiver | 49K |
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| 2 | DM74ALS640AWM/A+ | Single 8-Bit Inverting Bus Transceiver | 123K |
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| 3 | DM74ALS640AWM/B+ | Single 8-Bit Inverting Bus Transceiver | 123K |
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| 4 | DM74ALS640AWMX | Single 8-Bit Inverting Bus Transceiver | 49K |
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