AT24C32 Module High Precision Clock Module With Battery&Leap Year Compensation.Features: The module is a low cost, high precision I2C real time clock (RTC) with integrated temperature compensated crystal oscillator (TCXO) and crystal. The device includes a battery input port that maintains accurate timing when the mains supply is disconnected. Integrated crystal oscillator improves long-term accuracy of the device. Both commercial and industrial temperature ranges are being provide , adopting a