808786 Raspberry Pi RTC Expansion Module v1.1

The RTC module is specifically designed for Raspberry Pi. It communicated with Raspberry Pi through I2C bus. 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 off. In order to offering a convenient way to debug, there are five pin has been setup which are 5v, 3.3v, Rxd,Txd on borad.

CR1220 button cell not included.

FEATURES

• • Use Maxim DS1307 chip
• • Extends CR1220 button cell backup
• • Can be operated by a shell
• • Set a serial port connector
• • Programmable square-wave output signal
• • Consumes Less than 500nA in Battery-Backup Mode
• • Automatic Power-Fail Detect and Switch Circuitry
• • Programmable Square-Wave Output Signal
• Raspberry Pi3 compatible

PARAMETERS

• • Accuracy ±2ppm from 0°C to +40°C
• • Work voltage 5V
• • Battery Backup Input for Continuous Time keeping
• • Real-Time Clock Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year • Compensation Valid Up to 2100
• • Work temperature 0°C to +70°C

PART LIST

• • 1 x RTC Module

DOCUMENTS

Please visit our wiki page for more info about this product.