Introduction - If you have any usage issues, please Google them yourself
RTC, English full name: Real-time clock, Chinese Name: real time clock, refers to the electronic equipment can be a result of actual time clock output, usually is the integrated circuit, so it is also called the clock chip. The real-time clock chip is one of the most widely used consumer electronic products in daily life. It provides accurate real-time time, or provides accurate time reference for electronic system. At present, most of the real-time clock chips use higher precision crystal oscillator as the clock source.