Technical summary
Features:
DS1302 timing IC
This real time clock has the ability to track second, minute, hour, day, week, month, year, and the ability to adjust a leap year
Wide working voltage: 2.0~5.5V
When the working voltage is 2.0V, the current is less than 300nA
Read/write clock or RAM data have two transmission modes: single-byte / many bytes group
Simple 3 line interface. Easy to install
Pin out:
VCC -> Vsupply (Arduino 3.3V)
GND -> Arduino GND
CLK -> (SCLK_PIN)
DAT -> (IO_PIN)
RST -> (CE_PIN)
