Description
Documents: Datasheet / Module Lineup / Gallery
Description: Battery backed up I2C real time clock module.
Features:
- Uses PCF8563 RTC circuit.
- Clock trimmed to better than +/-2ppm at 25C.
- 700nA current consumption enables 200 days of backup with on-board rechargeable battery.
- PCF8563 has low voltage detector that sets register bit "VL" if battery ever drops below its minimum voltage requirement.
- Battery charged from module supply voltage.
- On board 3V regulator for module and battery charging.
- External I2C interface operating range is 3.0 to 5.5VDC using on-board level shifter.
- Clock-out can be enabled in software
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