Introduction - If you have any usage issues, please Google them yourself
DS1302 is DALLAS companies in the United States launched a high-performance, low power consumption, real-time clock circuit with the RAM, it can be for the year, month, day, Sunday, when, minutes and seconds time, have a leap year compensation function, the working voltage of 2.5 V to 5.5 V. Using three line interface with CPU for synchronous communication, and USES the way of breaking a send multiple bytes of the clock signal or RAM data.