Specification



Operation voltage range:3.3V~5.5V.



Low-power:typical 1uA (inner battery, Ta=25°C)



Timing Range: To 2099 (with leap year compensation)



Accuracy ±5ppm from -40°C to +85°C.



Fast (400kHz) I2C Interface(4.5~5.5V).



Real-Time Clock Counts Seconds, Minutes,Hours, Day, Date, Month, and Year with Leap Year

Compensation Valid Up to 2100.



Time-of-Year,Month,Day,Week,Hour,Minute,Second Alarms.

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Programmable Square-Wave Output:32768hz,4096hz...1hz..1/16hz.

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Countdown timer interrupt.

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High precision time trimming circuit.



12-hour/24-hour time display selectable



Dimension: 35.50 * 22.00(mm)/1.4 * 0.87 inches



Weight: 6g

Board Overview

Gravity: I2C SD2405 RTC Module

Num

Label

Description

1

Gravity Interface

SDA: IIC Data

SCL: IIC Clock

GND: GND

VCC: 3.3~5V

2

XH2.54 Pins

SDA: IIC Data

SCL: IIC Clock

GND: GND

VCC: 3.3~5V

INT: Interrupt