I2C RTC DS1307 Real Time Clock Module for Raspberry

Description: 

The RTC module is specifically designed for Raspberry Pi. It communicated with Raspberry Pi through I2C Interface. 

There is a Maxim DS1307 and CR1220 button cell on the board to keep the real time for a long time after the Raspberry Pi has it’s power down. 

Set a serial port, TTL convenient way online debugging User Manual: 
https://wiki.52pi.com/index.php/DS1307_RTC_Module_with_BAT_for_Raspberry_Pi_SKU:_EP-0059

Technical Details： 

• Work Voltage: 5V 
• Weight: 4.35g 
• Maximum Current: 1.5mA 
• VBAT Current: 800nA 
• Work temprature: 0～+50℃ 
• Crystal Oscilator: Epson 20 
• ppm scale: 22x26x18.6(mm) 
• Battery: CR1220 
• RTC chip: DS1307 
• Mount hole: 2*5 Stacking Header