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用于计时芯片M41T56维护保持时间和数据的电源方法

消耗积分:5 | 格式:rar | 大小:72 | 2009-05-26

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This application brief describes an “environmentally friendly” way to back up time and data on the M41T56 TIMEKEEPERÒ device. Typically most systems use a battery to supply the energy source required to maintain data, and keep the real time clock section of the M41T56 running during a power supply outage. Disposing of the battery after it is depleted however can pose environmental concerns. In systems that only experience short power outages. Typically less than two days. Using a super cap can provide an alternative solution to using a battery.

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