| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | UM82C54L | CMOS PROGRAMMABLE INTERVAL TIMER | 1340K |
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| 2 | UM82C54L | CMOS PROGRAMMABLE INTERVAL TIMER | 1340K |
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| 3 | UM82C54L-2 | CMOS PROGRAMMABLE INTERVAL TIMER | 1340K |
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| 4 | UM82C54L-2 | CMOS PROGRAMMABLE INTERVAL TIMER | 1340K |
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