Real time clock module ds1307

Tiny RTC I2C Modules 24C32 Memory DS1307 Real Time Clock Chip RTC Module Board Feature: 1. DS1307 I2C Real-time Clock Chip (RTC). 2. 24C32 32K I2C EEPROM Memory. 3. Using CR2032 battery. 4. Solve the problem that DS1307 can not read and write with standby batteries. 5. After full charge, DS1307 timing can be provided for one year. 6. Compact design. 7. The clock pin of DS1307 is introduced to provide clock signal for MCU. 8. Other I2C devices can be cascaded. Specifications: Product size: 28mm*27mm*8.4mm/1.1*1.06*0.33'' Packing weight: 3g Mode: w/Battery, No Battery Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 x Real Time Clock Chip RTC M