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Hengjiaan 2PCS Tiny DS1307 I2C RTC DS1307 24C32 Real Time Clock Module
Descripition: Memory storage: 24C32 32K I2C EEPROM With CR2032 battery With reading and writing function Using time: About 1 year (Fully charged) Provide clock signal for microcontroller Cascade other I2C devices With full BCD clock calendar chip of 56byte non-volatile RAM Address and data transmission via serial cable with dual-line dual-direction The chip can provide second£¬ minute£¬ hour etc information. AM/PM mark£¬ for working 24-hour or 12-hour Built-in power sensor circuit in the chip£¬ with brownout detection and battery switch function Under battery backup mode£¬ power consumption is below 500uA Accurate calendar up to year 2100 Great for DIY project