DS3231 RTC Module Precise Real Time Clock I2C – AT24C02

DS3231 RTC Module – Precise Real-Time Clock with I2C Interface

The DS3231 RTC Module is a reliable, low-cost, and highly precise real-time clock solution. Powered by the DS3231 chip from Maxim, it integrates a temperature-compensated crystal oscillator and supports I2C communication, ensuring accurate timekeeping across various applications. With a built-in CR2032 battery holder, the module maintains time even during power interruptions, making it an ideal choice for systems requiring consistent time data.

Key Features

• Accurate Timekeeping: Tracks seconds, minutes, hours, day, date, month, and year, with automatic leap year adjustments valid up to 2100.
• Temperature Compensation: Offers accuracy of ±2 ppm (0°C to +40°C) and ±3.5 ppm (-40°C to +85°C).
• Multiple Modes: Supports 12-hour and 24-hour formats with AM/PM indication.
• Advanced Alarms: Two programmable alarms for customized notifications.
• I2C Interface: Fast 400 kHz I2C communication for seamless integration.
• Battery Backup: Onboard CR2032 battery holder ensures uninterrupted operation during power outages.
• Additional Functionality: Includes programmable square wave output, digital temperature sensor, and pushbutton reset debounce input.
• Integrated EEPROM: Features an AT24C32 chip for 32Kbit of serial I2C storage.

Specifications

Applications

• Data loggers
• Alarm systems
• IoT devices
• Embedded systems requiring precise timekeeping

Connection Diagram

Refer to the labeled pins for proper connections:

• SCL: Serial Clock Line (I2C)
• SDA: Serial Data Line (I2C)
• VCC: Supply Voltage (2.7 ~ 5.5 VDC)
• GND: Ground

With its robust design and advanced features, the DS3231 RTC Module is the perfect choice for maintaining accurate time in your projects and applications.