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BQ3285LF,pdf(Y2K-Enhanced Real

消耗积分:2 | 格式:rar | 大小:187 | 2010-10-28

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The CMOS bq3285LF is a low-power microprocessor peripheral providing a time-of-day clock and 100-year calendar with alarm features and battery operation. The architecture is based on the bq3285 RTC with added features: century bit, low-voltage operation, 32.768kHz output, 126 additional bytes of CMOS, two shadow registers of last address used, and a day-of-month alarm to be compliant with the ACPI RTC specification.

A 32.768kHz output is available for sustaining power-management activities. The bq3285LF 32kHz output is always on whenever VCC is valid. In VCC standby mode, the 32kHz is active, and the bq3285LF typically draws 100uA. Wake-up capability is provided by an alarm interrupt, which is active in battery-backup mode.

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