DS3231 RTC Module Precise Real Time Clock I2C – AT24C02
Specifications:
- Accuracy 2 ppm from 0° C to +40° C
- Accuracy 3.5 ppm from -40° C to +85° C
- Digital Temp Sensor Output: ±3° C Accuracy
- Memory Chips: AT24C02 (2Kbit)
- Register for Aging Trim
- RST Output/Pushbutton Reset Debounce Input
- Two Time-of-Day Alarms
- Programmable Square-Wave Output Signal
- Fast 400 Khz I2C interface
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
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
Parameter | Details |
Operating Voltage (VDC): | 2.7 ~ 5.5 |
RTC Supply Voltage: | 2.2 ~ 5.5 V |
Accuracy: | ±2 ppm (0°C to +40°C), ±3.5 ppm (-40°C to +85°C) |
Battery Backup: | CR2032 Coin Battery Holder |
Interface: | Fast 400 kHz I2C Interface |
EEPROM: | AT24C32 (32Kbit Serial I2C) |
Time Format: | HH:MM:SS (12/24 hr) |
Date Format: | YY-MM-DD-dd |
Operating Temperature Range: | -40°C to +85°C |
Digital Temp Sensor Accuracy: | ±3°C with 0.25°C resolution |
Dimensions (L×W×H) [mm]: | 38 × 22 × 14 |
Weight: | 8 g |
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.
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