| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | SL74LS161 | Synchronous 4 Bit Counters; Binary, Direct Reset | 47K |
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| 2 | SL74LS161D | Synchronous 4 Bit Counters; Binary, Direct Reset | 47K |
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| 3 | SL74LS161N | Synchronous 4 Bit Counters; Binary, Direct Reset | 47K |
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