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).


Product Details

Product Description

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.

Related Information:

> RTC Interfacing Guide with Arduino.




T & C

We warrant Handson Technology Manufactured Products will be free from manufacturing defects for a period of thirty (30) days following the date of delivery to you. We will replace, repair or credit you for any confirmed defective product at our option. Products that are not manufactured by Handson Technology may, or may not, be covered by original manufacturer’s warranty and passed through to you. Please contact support to confirm warranty period prior to purchase.

Warranty will not apply if Product fails or is damaged after delivery to you due to accident, abuse or misuse.



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RM 5.80
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Shipment and Delivery: 2-3 Business Days
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Brand: OEM
SKU: zs042x1
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In Stock