xcluma PCF8563 PCF8563T 8563 IIC I2C Real Time Clock RTC Module(Blue)

The PCF8563 RTC Board provides the real-time clock/calendar function, which can be driven by a battery on board and works independently even when the MCU is turned off.Low-cost, extremely accurate I2C real-time clock (RTC)More steady and precise than DS1302 or DS1307Support I2C bus cascade (by pin, row seat docking method, which can use multiple I2C module)Wide voltage range: 1.0-5.5VTypical value: 0.25uAOutput frequency: 32.768KHz, 1024Hz, 32Hz, 1Hz4 kinds of real-time clock/calendar functions