DS3231 i2C Precision Clock RTC with AT24C32 Memory

The DS3231 I2C Precision RTC Module with AT24C32 Memory is a reliable real-time clock perfect for Arduino, Raspberry Pi, and other microcontroller projects. It combines the DS3231 RTC chip with AT24C32 EEPROM and a temperature-compensated crystal oscillator for accurate, stable timekeeping even in changing temperatures.

With a built-in voltage comparator and backup battery support, this module maintains continuous operation during power outages. Breadboard-friendly with a 6-pin header and I2C interface, it’s ideal for data logging, alarms, timers, scheduled events, and custom DIY clocks for both educational and professional projects.

Key Features

• Highly accurate real-time clock for reliable timekeeping
• Battery backup input for uninterrupted operation during power outages
• Low power operation extends battery life
• Breadboard-friendly 6-pin header for quick prototyping
• Temperature-compensated crystal oscillator (TCXO) for minimal drift
• Integrated AT24C32 EEPROM for storing time logs and configuration data
• Easy I2C communication with microcontrollers like Arduino and Raspberry Pi
• Supports alarms, timers, and scheduled event programming

Applications

• Create custom clocks using LCD, OLED, or HDMI displays
• Time-stamp data logging projects for environmental, scientific, or industrial monitoring
• Schedule events to occur at specific times of day, week, or month
• Alarm systems and home automation projects
• Battery-backed timers and time-controlled devices

Specifications

• Clock chip: DS3231
• Memory chip: AT24C32 (32KB)
• Operating voltage: 3.3V – 5.5V DC
• Communication: I2C bus, up to 400 kHz
• Operating temperature: Commercial 0°C to +70°C, Industrial -40°C to +85°C
• Accuracy: ±2ppm (0°C to +40°C), ±3.5ppm (-40°C to +85°C)
• Dimensions: 38 × 22 × 14 mm (1.5 × 0.87 × 0.55 in)
• Backup battery support: CR2032 coin cell (not included)

Why Choose DS3231 RTC Module?

The DS3231 I2C Precision RTC Module is ideal for projects that require accurate timekeeping and reliable backup support. Its compact design, ease of use, and compatibility with Arduino, Raspberry Pi, and other microcontrollers make it a perfect choice for DIY electronics enthusiasts, students, and professional developers. Order now and enhance your time-sensitive projects with precision and reliability.