Boards & Sensors DS3231 AT24C32 Real Time Clock Memory Module
Best precision timekeeping solution for hobbyist electronics and data logging projects.
This is the gold standard for keeping your projects on schedule without constant recalibration. By pairing a high-precision clock with onboard memory and battery backup, it trades a slightly larger footprint for the peace of mind that your data and timing will survive any power failure.
$29.75
Who it's for
- Engineers requiring precise timekeeping in fluctuating environments
- Developers needing extra storage for configuration and logging
- Makers seeking simple integration with standard microcontrollers
Who should skip it
- Budget-conscious hobbyists building simple, low-cost projects
- Designers building devices with extreme battery life constraints
- Users with basic timing needs and sufficient onboard memory
Performance breakdown
Timekeeping Precision
The DS3231 chipset offers industry-leading accuracy for critical timing applications.
Integration Ease
Standard I2C interface ensures seamless connectivity with most microcontroller platforms.
Data Retention
Battery backup provides reliable, uninterrupted data logging during unexpected power failures.
Form Factor
Compact dimensions allow for easy installation in space-constrained embedded projects.
Memory Capacity
32K storage is sufficient for basic logging but limited for large datasets.
Environmental Monitoring
Integrated temperature sensor adds valuable diagnostic data for precision-sensitive hardware.
Key Specs
Clock chipset
DS3231 high-precision clock chip
Memory chips
AT24C32 with 32K storage capacity
Interface Type
I2C bus
Maximum IIC transmission speed
400KHz (at 5V)
Dimensions
38mm (length) * 22mm (W) * 14mm (height)
Operating voltage range
3.3 - 5.5 V
Weight
8g
Default 24C32 address
0x57 (modifiable)
Clock Frequency
0.4 MHz
Flash Memory
32 KB
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