| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | DM74LS461J | Octal Counter | 123K |
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| 2 | DM74LS461J | Octal Counter | 123K |
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| 3 | DM74LS461J/A+ | Synchronous Up Counter | 137K |
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| 4 | DM74LS461J/B+ | Synchronous Up Counter | 137K |
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