Gravity I2C Real Time Clock Module (SD2405)

Description Operation voltage range:3.3V~5.5V Countdown timer interrupt High precision time trimming circuit 12-hour/24-hour time display selectable The Gravity I2C Real Time Clock Module (SD2405) is dual power supply system. When the primary power supply goes down to an assigned value or resumes from low power, the system can switch between the primary power supply and battery automatically. Even there is no external power, it can still work for 5~8 years, 1uA ultra-low power consumption (inner battery, Ta=25°C). View more What's Included 1x - Gravity: I2C SD2405 RTC Module 1x - Gravity I2C 4-Pin Sensor Cable 1x - XH2.54-5pin header Dimensions Size 35.50 x 22.00(mm)/1.4 x 0.87 inches Weight: 6g Links PDF Files Gravity I2C Real Time Clock Module (SD2405) Datasheet Gravity I2C Real Time Clock Module (SD2405) Schematic Gravity I2C Real Time Clock Module (SD2405) Dimensions ZIP File Gravity I2C Real Time Clock Module (SD2405) Documentation Specifications 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 Programmable Square-Wave Output: 32768hz, 4096hz...1hz..1/16hz