Real Time Clock DS1307 RTC I2C Module AT24C32 with CR2032 Coin Battery

Specifications: Size: 28mm (length) * 25mm (W) * 9mm (height) Weight: 8g Operating voltage :5?V Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation IIC bus interface, the maximum transmission speed of 400 KHz (working voltage of 5V) Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57 Descriptions: 24C32 32K I2C EEPROM Memory Backup by AT24C32 32 Kbit DS1307,AT24C32 can work separated Leads to the DS1307 clock pin, to provide the clock signal for the micro controller DS1307 I2C real time clock chip (RTC) LIR2032 rechargeable Lithium battery with charging circuit Fully charged, can power DS1307 module for 1 year DS1307 can provide clock for micro controller I2C devices can be cascaded