Real-Time Clock Module DS1302 (Real-Time Clock Module), 3.3V-5V, 3-wire serial interface (universal)

A highly efficient and economical general-purpose real-time clock (RTC) electronic module. This board is designed for integration into various microcontroller control systems, educational robotics platforms and automation devices to keep accurate, independent track of the current time and date. The module's main job is to store and continuously update time data even when the main supply voltage to the controller is completely switched off. FEATURES: Part type — Electronic real-time counting module (interface)Main chip — Energy-efficient DS1302 real-time clock chip (in a removable DIP-8 socket)Operating voltage — 2.0 V to 5.5 V DC (DC 2.0V-5.5V)Current consumption — Ultra-low, below 300 nA at 2.0 V in standalone mode;Communication interface — Simple 3-wire serial interface (CLK, DAT, RST)Calendar functions — Counts seconds, minutes, hours, day of month, month, day of week and year, including leap years up to 2100Built-in memory — 31 bytes of non-volatile RAM for storing user data;Backup power — Dedicated built-in plastic compartment (holder) for a CR2032 lithium coin cell;Clock generator — A cylindrical 32.768 kHz quartz crystal resonator is soldered onto the board