DORHEA DS3231 AT24C32 IIC RTC Module Clock Timer Memory Module Beats Replace DS1307 I2C RTC Board ,Batteries not Included20 PCS Male to Female Jumper Wire Cable

DS3231 16-pin memory chips - AT24C32,extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. , Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line. , Provides two configurable alarm clock and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bidirectional bus. , Highly accurate RTC completely manages all timekeeping functions. The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping. , A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output. In addition, RST pin is monitored as generating a P reset.