DS3231 Precise Real Time Clock Module I2C RTC AT24C32
DS3231 Precise Real Time Clock Module I2C RTC AT24C32 $_1 (1) ds3231 rtc module-500x416 DS3231 Precise Real Time Clock Module I2C RTC AT24C32 DS3231 Precise Real Time Clock Module I2C RTC AT24C32

DS3231 RTC Module Precise Real Time Clock I2C AT24C32

16 Review(s)
Availability: In stock
SKU: 11496


  1. 1Hz output pin SQW.
  2. 32KHz output pin 32K.
  3. Voltage Supply: 2.2 V ~ 5.5 V (for RTC).
  4. Time Format: HH: MM: SS (12/24 hr).
  5. Date Format: YY-MM-DD-dd.
  6. DS3231 based RTC with 2032 Battery Holder.
  7. Highly Accurate RTC
  8. Real-Time Clock Counts
  9. Digital Temp Sensor Output.
  10. Register for Aging Trim.
  11. Two Time-of-Day Alarms.
  12. Programmable Square-Wave Output Signal.
  13. Configurable I2C device Address for AT24C32 using SMD jumpers on PCB (A0, A1, A2).


(inc GST)

₹ 93.22 (+18% GST extra)

In stock

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Brand: Generic

DS3231 RTC  is Precise Real-Time Clock Module with 32Kbit EEPROM and a built-in 10-bit temperature sensor having a resolution of 0.25C.

The DS3231 RTC module Precise Real-Time Clock Module is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted.

The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The ds3231 Arduino is available in commercial and industrial temperature ranges and is offered in a 16-pin, 300-mil SO package.

For more details about IC, DS3231 datasheet is attached.


  1. Two Time-of-Day Alarms.
  2. Digital Temp Sensor Output.
  3. Register for Aging Trim.
  4. DS3231 RTC with 2032 Battery Holder.
  5. Highly Accurate RTC Completely Manages All Timekeeping Functions.
  6. Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year, with Leap-Year Compensation Valid Up to 2100.
  7. Configurable I2C device Address for AT24C32 using SMD jumpers on PCB (A0, A1, A2).
  8. Programmable Square-Wave Output Signal.
  9. Battery-Backup Input for Continuous Timekeeping.
  10. Low Power Operation Extends Battery-Backup Run Time.

Package Includes :

1 x DS3231 Precise Real-Time Clock Module Memory Module

Operating Voltage Range

2.7V ~ 5.5V (including 24C32).

Voltage Supply for RTC

2.2 V ~ 5.5 V


±2ppm from 0°C to +40°C.
±3.5ppm from -40°C to +85°C.

Battery Holder

2032 Coin Battery.

I2C interface

Fast (400kHz) I2C Interface.


AT24C32 32Kbit Serial I2C.

Time and Date Format

Time: HH: MM: SS (12/24 hr).
Date Format: YY-MM-DD-dd.

Operating Temperature Range

Commercial (0°C to +70°C)
Industrial (-40°C to +85°C).

Digital Temp Sensor Output

10 bit, ±3°C Accuracy and 0.25C resolution.

Dimensions in mm (LxWxH)

38 x 22 x 14



Shipment Weight

0.11 kg

Shipment Dimensions

12 x 8 x 5 cm

15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

16 reviews for DS3231 RTC Module Precise Real Time Clock I2C AT24C32

  1. Rated 5 out of 5

    Ganeshan Muthusekar (verified owner)

    Ya its working…

  2. Rated 5 out of 5

    Aravind MA (verified owner)

    Excellent. Works as expected. Delivered in one day to Bengaluru. Very fast.

  3. Rated 5 out of 5

    adisworld (verified owner)

    Nice product, good quality, working well. Very Fast shipping.

  4. Rated 4 out of 5

    shakir (verified owner)

    Nominal product
    medium price

  5. Rated 4 out of 5

    shakirmavoor (verified owner)

    nominal product
    medium rate

  6. Rated 5 out of 5

    svtcvja (verified owner)

    Working Well. Very fast shipping

  7. Rated 5 out of 5

    saurabh sinha (verified owner)

    very good product – Very fast delivery

  8. Rated 2 out of 5

    p (verified owner)

    product is average compair to price

  9. Rated 5 out of 5

    Dhananjay rai (verified owner)

    It is working fine and delivery was very fast within 2 days I received my product.
    Thank you

  10. Rated 5 out of 5

    RAJESH KUMAR BEHERA (verified owner)

    Trouble free quality product .With Very Fast Delivery Comparison to Amazon n Other E-commerce Portals.. Previously I used to Order it from China n Hong Kong.but As I get the better quality at about same or Little more Manageable Price from Robu…The Best.and all tHe prices are Inclusive of GST..That is the Main Advantage..

  11. Rated 4 out of 5

    PRAKASH (verified owner)


  12. Rated 5 out of 5

    technockt (verified owner)

    We need the dimension of it anyone can share it?

  13. Rated 4 out of 5

    M M Ansari (verified owner)

    Good at this price

  14. Rated 5 out of 5

    nevilneo010 (verified owner)

    I got the product on time. Ds3231 is simple a RTC. One can refer the datasheet to know the full potential of this module. The alarm function helps to set alarms and interrupt a microcontroller to wake up from sleep. which is essential for power saving when the power source is battery.

  15. Rated 4 out of 5

    Uttamrao Borker (verified owner)


  16. Rated 5 out of 5

    dzineintegration (verified owner)

    Excellent Fast Delivery to Me
    Shipped by MACFOS Pvt. Ltd.
    In its Quick Highlights Please update that
    it comes with CR2032 Battery HOLDER with 1 Unit CR2032 3V Battery

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DS3231 RTC datasheet.

AT24C32 32K bit EEPROM datasheet.

Arduino Library by MajicDesigns

Arduino Library by Adafruit.