SPARKFUN DS3234 Real-Time Clock Breakout Board
Ultra-accurate SPI RTC breakout with temperature compensation, battery backup & alarms for precision timing applications.
The SPARKFUN DS3234 DeadOn Real-Time Clock (RTC) Breakout Board is a compact and highly accurate solution for timekeeping in your electronic projects. Based on the DS3234 RTC IC, this breakout board integrates a temperature-compensated crystal oscillator (TCXO) and crystal, ensuring exceptional precision with an accuracy of ±2ppm.
Suitable for both 12-hour (AM/PM) and 24-hour formats, this RTC maintains seconds, minutes, hours, day, month, and year information, automatically adjusting for leap years and months with fewer than 31 days. With accurate calendar functionality up to the year 2100, it's perfect for long-term applications.
Key Features
- High Precision: ±2ppm accuracy with temperature compensation.
- Low Power Consumption: Efficient operation for prolonged use.
- Battery Backup Support: Includes a 12mm coin cell holder (coin cell not included) for uninterrupted timekeeping during power loss.
- Programmable Alarms & Outputs: Two alarms and a square-wave output for versatile timing applications.
Applications
- Embedded systems
- IoT devices
- Digital clocks
- Logging applications
- Automation projects
Specifications
- Accuracy: ±2ppm
- Communication Interface: SPI bus
- Power Consumption: Low power (<25µA for battery backup)
- Battery Backup: 12mm coin cell holder (not included)
- Formats: 12-hour (AM/PM) and 24-hour modes
- Year Range: Up to 2100
This breakout board is ideal for developers seeking reliable, accurate timekeeping in a compact, easy-to-use format.
- Embedded systems development
- IoT device timing solutions
- Precision digital clocks
- Data logging applications
- **IC Model:** DS3234
- **Accuracy:** ±2ppm
- **Interface:** SPI bus
- **Time Format:** 12-hour (AM/PM) & 24-hour
- **Programmable Features:** Two alarms, square-wave output
- **Calendar Support:** Up to 2100 (auto-leap year adjustment)
- **Power Consumption:** <25µA (battery backup mode)
- **Battery Holder:** 12mm coin cell (excluded)
- **Dimensions:** Compact breakout form factor
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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