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Product Information:- Accessory Type: I2C SD2405 RTC Module- For Use With: DFRduino UNO R3 - Arduino Compatible Board- Product Range: Gravity SeriesProduct Overview:- Gravity I2C SD2405 RTC module an extremely accurate I2C real-time clock (RTC)with crystal compensation, inner chargeable battery. The SD2405AL can generatesvarious periodic interrupt clock pulses lasting for long period (one year) andthree alarm interrupts can be made by year, month, date, days of the week, hoursand minutes, seconds. It also provides a selectable 32.768KHz~1Hz clock outputfor an external MCU. - The product incorporates a time trimming circuit thatadjusts the clock with higher precision by adjusting any errors in crystaloscillator frequencies based on signals from the CPU. A 12-bytes general SRAM isimplemented in the SD2405AL. * 3.3V to 5.5V operating range * To 2099 (with leap year compensation) timing range * Fast (400KHz) I2C interface(4.5 to 5.5V) * RTC counts sec, minutes, hrs, day, date, month and year with leap year compensation valid up to 2100 * Time-of-year, month, day, week, hour, minute, second alarms * Programmable square-wave output * Countdown timer interrupt * High precision time trimming circuit * 12-hour * 24-hour time display selectable * Operating voltage range: 3.3V-5V * Low-power operation: typical 1uA (inner battery, Ta=25°C) * Board size: 22x36mm * Weight: 6gApplications:- Embedded Design & Development, Electronics Design, IoT (Internet of Things)Contents:- Gravity I2C SD2405 RTC module, Gravity I2C 4-pin sensor cable, XH2.54-5pinheader.
