114100001

114100001 is a 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 an Analog Devices DS1307 and CR1220 button cell on the board to keep the real time for a long time after the Raspberry Pi has its 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 board. Real-time clock counts seconds, minutes, hours, day, date, month, and year with leap year, compensation valid up to 2100.

• Use Analog Devices 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
• Accuracy ±20ppm from 0°C to +40°C
• Work voltage is 5V
• Battery backup input for continuous time keeping
• Work temperature range from 0°C to +70°C