DS3231 High Precision Real-Time-Clock (RTC) Module


DS3231 is high precision real time clock (RTC) module suitable for projects that need accurate timekeeping functionality. Typical applications include clocks and data logging devices.

Pack of 1-piece (CR2032 battery included)/pack.

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In stock

SKU: MDU1036 Category:


DS3231 is a low cost and extremely accurate I2C real-time clock, with an integrated crystal and temperature-compensated crystal oscillator (TCXO).  DS3231 can be operated using supply voltages ranging from 2.3V to 5.5V and it also features battery backup capabilities. The DS3231 features an integrated crystal, 2 programmable time-of-day alarms, a temperature sensor, and 32.768 kHz signal output pin. The AT24C32 32KB EEPROM that can be used to add non-volatile data storage to your electronic projects and prototypes. The module also features a battery holder, allowing you to add a backup battery to ensure continuous operation after power cut-off.


  • Standard 2.54mm pins pitch for input and output connections.
  • Two programmable square-wave outputs.
  • Backup battery socket compatible with CR2032 3V Lithium batteries.
  • Clock accuracy: ±2ppm.
  • 32KB EEPROM Memory chip: AT24C32.
  • On-chip temperature sensor with an accuracy of ±3℃.
  • I2C bus interface maximum speed: 400kHz.
  • Small Size: 38 x 22 x 14 mm.

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Weight 0.05 kg


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