RTC 21 click

Type RTC Applications Can be used for various time-keeping applications, including daily alarms, metering applications, and others requiring an accurate RTC for their operation On-board modules PT7C4311 - real-time clock (RTC) from Diodes Incorporated Key Features Low power consumption, programmable square-wave output, high-speed I2C interface, clock/calendar counter, 24-hour format, 56 bytes RAM, automatic lepa year compensation, automatic backup switchover, and more Interface I2C Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V