You're not connected to the Internet.


The datasheet for the DS3231 explains that this part is an "Extremely
Accurate IC-Integrated RTC/TCXO/Crystal". And, hey, it does exactly
what it says on the tin! This Real Time Clock (RTC) is the most
precise you can get in a small, low power package.

Most RTCs use an external 32kHz timing crystal that is used to keep
time with low current draw. And that's all well and good, but those
crystals have slight drift, particularly when the temperature changes
(the temperature changes the oscillation frequency very very very
slightly but it does add up!) This RTC is in a beefy package because
the crystal is inside the chip! And right next to the integrated
crystal is a temperature sensor. That sensor compensates for the
frequency changes by adding or removing clock ticks so that the
timekeeping stays on schedule.

This is the finest RTC you can get, and now we have it in a compact,
breadboard-friendly breakout. With a coin cell plugged into the back,
you can get years of precision timekeeping, even when main power is
lost. Great for datalogging and clocks, or anything where you need to
really know the time.

Comes as a fully assembled and tested breakout plus a small piece of
header. You can solder header in to plug it into a breadboard, or
solder wires directly.

A coin cell is required to use the battery-backup capabilities! We
don't include one by default, to make shipping easier for those
abroad, but we do stock them so pick one up or use any CR1220 you have

Technical Details:

* 23mm x 17.6mm x 7.2mm / 0.9" x 0.7" x 0.28"
* Weight: 2.1g


Click 'show more' to display specifications.

General information

Manufacturer Adafruit Industries
Product type Elektronikmodul
Item number5998571
Manufacturer no.ada-3013

Please click directly on the incorrect data to access the registration form.

Alternatively, you can register a generic error report (wrong picture, unsuitable accessories, etc.)


Report incorrect data

Correction suggestion


Report incorrect data

If you wish to learn more about this product, please visit the manufacturer's website or contact us:

Warranty & right to return

Warranty 24 month Bring-in

Limited right of return

Warranty and return

Please use our simplified returns and warranty process to return a product or register a warranty case. Returns and warranty

Please use our simplified warranty process to view the warranty period as well as any warranty extensions you may have purchased. This will ensure that your return or warranty case is processed quickly and effectively.


Mail delivery/Collection

 Currently unavailable. Delivery date unknown.
We do not have any information regarding the delivery date. It will be shown as soon as it's known.

Information subject to change.

Customer questions and answers

No questions so far.

Do you have a question? Ask the Galaxus community.

Ask a question

Ask other customers about product properties, performance or use.

Customer ratings

This product has not yet been rated.

Have you tested this product? Share your opinion with the Galaxus community.

Rate product
Adafruit Industries Adafruit DS3231 Precision RTC Breakout Adafruit Industries Adafruit DS3231 Precision RTC Breakout