DS1302 Real Time Clock RTC Module (3-Wire Serial Clock Calendar Module)

The DS1302 Real Time Clock (RTC) Module is a compact timekeeping module designed to provide accurate date and time information for embedded systems and microcontroller applications. Based on the DS1302 RTC IC, it maintains seconds, minutes, hours, day, date, month, and year information, even during power interruptions when powered by a backup battery. The module communicates using a simple 3-wire serial interface, making it compatible with Arduino, ESP32, ESP8266, STM32, PIC, Raspberry Pi (with suitable libraries), and other embedded development platforms.

Key Features -

• Based on DS1302 real-time clock IC

• Maintains date and time information

• Supports seconds, minutes, hours, day, month and year

• Battery backup for uninterrupted timekeeping

• 3-wire serial communication interface

• Onboard backup battery holder

• Low power consumption

• Compact module with header pins

• Easy microcontroller interfacing

• Ideal for timekeeping applications

Specifications -

• Product type - Real Time Clock Module

• RTC chip - DS1302

• Operating voltage - 5V DC

• Communication interface - 3-Wire Serial

• Backup battery - CR2032 Supported

• Timekeeping - Seconds, Minutes, Hours, Day, Date, Month and Year

• Clock accuracy - Standard Crystal Timekeeping

• RAM - 31 Bytes Battery-Backed RAM

• Operating temperature - Standard Ambient

• Mounting type - PCB Module

Applications -

• Digital clocks

• Data loggers

• Alarm systems

• Scheduling systems

• Attendance systems

• Home automation

• Embedded electronics