Description:

The RTC module is specifically designed for Raspberry Pi. It communicated with Raspberry Pi through the 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 its power down. Set a serial port, TTL conveniently way online debugging.

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
• Accuracy ±2ppm from 0°C to +40°C
• Work voltage 5V
• Battery Backup Input for Continuous Timekeeping
• 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

Package List:

• 1 x Raspberry Pi RTC Expansion Module