DS3231 RTC MODULE
- Operating voltage of DS3231: 2.3 v to 5.5v
- 400Khz I2C interface
- Automatic power failure battery switch circuitry
- RTC counts seconds, minutes, hours, and year
- High precision clock chip DS3231
- Programmable square-wave output
- Chip temperature sensor accuracy:+/_3 degree Celsius
- Memory chip: AT24C32 with 32K storage capacity
- CR2032 battery backup with a high life span
- Low power consumption
- Register for ageing trim
- Dimension: 38mm*22mm*14mm