| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | DS1644P | Nonvolatile Timekeeping RAM | 309K |
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| 2 | DS1644P | PowerCap with Crystal | 40K |
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| 3 | DS1644P | Nonvolatile Timekeeping RAM | 221K |
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| 4 | DS1644P+120 | Nonvolatile Timekeeping RAM | 309K |
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| 5 | DS1644P-120 | Nonvolatile Timekeeping RAM | 309K |
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| 6 | DS1644P120+ | Nonvolatile Timekeeping RAM | 309K |
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| 7 | DS1644P-120+ | Nonvolatile Timekeeping RAM | 221K |
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