The role of clock chip Clock chip is one of the most widely used consumer electronic products in daily life. It provides people with accurate real-time time, which can time the year, month, day, Sunday, hour, minute and second, and has many functions such as leap year compensation. Or provide an accurate time reference for the electronic system. At present, most real-time clock chips use high-precision crystal oscillators as clock sources.

The abbreviation of clock chip real-time clock is RTC(Real_Time Clock). RTC is an integrated circuit, usually called clock chip.