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