114100001

Raspberry Pi RTC Expansion Module v1.1 SKU 114100001 DESCRIPTION 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. 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 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 Copyright ©2008-2016 Seeed Development Limited