| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | M41T81SM6F | Serial Access Real-Time Clock with Alarms | 449K |
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| 2 | M41T81SM6F | Serial access real-time clock with alarms | 289K |
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| 3 | M41T81SM6FT | Serial Access Real-Time Clock with Alarms | 449K |
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