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Gravity: SD2405AL RTC Module

SKU: DFR0469

The Gravity SD2405AL RTC Module is a highly precise I2C real-time clock with crystal compensation and an inner chargeable battery, suitable for industrial applications requiring accurate timekeeping across various temperature ranges.

Front of SD2405AL RTC module with USB and pins for real time clock-DFRobot product sku:DFR0469 image.

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    • Specification

    Parameter Value
    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
    I2C Interface Fast (400kHz) (4.5~5.5V)
    I2C Address 0x32
    Real-Time Clock Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100
    Alarms Time-of-Year, Month, Day, Week, Hour, Minute, Second Alarms
    Programmable Square-Wave Output 32768hz, 4096hz...1hz..1/16hz
    Interrupt Countdown timer interrupt
    Time Trimming Circuit High precision
    Time Display 12-hour/24-hour selectable
    Dimension 35.50 x 22.00(mm)/1.4 x 0.87 inches
    Weight 6g

    Pinout

    DFR0469 Gravity: SD2405AL RTC Module Pinout

    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

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