I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment - BU9873FJ

The BU9873 is a CMOS real-time clock, which has a built-in interrupt generation function. This product is connected to the CPU via I²C interface, and configured to perform serial transmission of time and calendar data to the CPU. A high-precision oscillation adjustment circuit is also integrated, which is capable of adjusting time counts with digital method, and correcting deviations in the oscillation frequency of the crystal oscillator.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BU9873FJ-GTE2ActiveSOP-J825002500TapingYes

BU9873FJ Data Sheet

Specifications
Time Keeping Voltage(Min.)[V]1.45
Time Keeping Current(Typ.)[uA]0.4
Time Keeping Current(Max.)[uA]1
Supply voltage(Min.)[V]1.8
Supply voltage(Max.)[V]5.5
Access Frequency 1 [kHz]100
Access Frequency 1 [kHz]400
Technical Documents
Pin Configuration
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