DFRobot (DFR0641) MEMS Precise RTC Module, Fermion, Arduino Board

Product InformationAccessory Type: MEMS Precise RTC ModuleFor Use With: Arduino BoardProduct Range: -Product OverviewDFR0641 is a Fermion: DS3231M MEMS Precise RTC (Breakout). This MEMS precise RTCbreakout board adopts DS3231M chip, which integrates MEMS resonator andtemperature compensator. Compared to quartz crystal clock, the real-time clockreduces the risk of mechanical failure. Therefore, it can be used in a highlyvibrating environment. Within -45 C to +85 C, the accuracy of the DS3231M is5ppm ( 0.432 s/D).High anti-vibrationInternal MEMS resonator and temperature compensatorClock calendar2 programmable calendar alarmsOperating voltage range from 3.3V to 5.5VDimension is 22.5 x 21mm / 0.886 x 0.827inch