I2C RTC DS1307 AT24C32 Real Time Clock Module for Arduino

The DS1307 I2C Real Time Clock chips (RTC) I2C EEPROM Memory 24C32 32K Adopt LIR2032 rechargeable lithium battery, with the charging circuit Solved the problem of DS1307 with battery backup can not read and write Lead off clock pin of DS1307 to provide clock signal for MCU Net weight: 7 g / 0.25 oz Size: 28 x 26 x 7 mm / 1.1 x 1.02 x 0.28 inch