DFRobot (DFR0821) Precise RTC Module, Fermion, DS3232, Arduino Board

Product InformationAccessory Type: DS3232 Precise RTC ModuleFor Use With: Arduino BoardProduct Range: -Product OverviewFermion DS3232 precise RTC (breakout). This real-time clock module (RTC) usesthe DS3232 chip that integrates a crystal resonator and a temperaturecompensator, which improves the long-term accuracy of the module. In the rangeof -40 C to +85 C the accuracy of DS3231 remains at 3.5ppm ( 0.3024seconds/day). The DS3232 integrates 236byte SRAM storage that can store datawith extremely low power consumption and it also can be used in scenarios suchas low power consumption collection of the Internet of Things. The deviceincorporates a battery input and maintains high precision timing when the mainpower to the device is interrupted. The RTC provides information of seconds,minutes, hours, week, day, month and year and it can automatically adjust thedate at the end of the month, including corrections for leap year. The clockoperates in either the 24-hour or 12-hour format with AM/PM indicator.XTAL integrated resonator and 236byte storage1500nA timing current and 3.3V-5.5V operating voltageInternal integrated crystal resonator, small deviationInternal integrated temperature compensator, small temperature driftComplete clock calendar functionTwo programmable time-of-day alarms0 x 68 I2C address, 1970 to 2100 timing rangeWorking temperature range -40 C ~ +85 CTiming accuracy: 3.5ppm ( 0.3024 seconds/day)Suitable: event reminder, MCU external wakeup source, clock, alarm O/P, IoT datacollection, storage