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Adafruit PCF8523 Real Time Clock Assembled Breakout Board

Adafruit  |  SKU: ADA3295
$15.60 AUD
$14.18 exc GST

Delivery and Shipping

Delivery Options

We offer several delivery choices to fit your needs:

  • FREE Delivery: $0. Enjoy Free AusPost Parcel Standard Delivery on orders over $100 in value. Exclusions may apply.
  • AusPost Untracked Letter: $3. Delivery in 3-8 business days (untracked). No refunds or replacements without proof of receiving the order.
  • AusPost Parcel Standard: $9. Tracked delivery in 2-6 business days.
  • AusPost Parcel Express: $13. Express tracked delivery in 1-3 business days.
  • Pickup: $0. Email us to arrange a pickup from our location in Huntingdale 3166 in Melbourne at support@zaitronics.com.au. More details can be found in our contact page.

Additional Information

  • Non-metro addresses in WA, NT, SA & TAS may require extra time.
  • Certain batteries (like LiPo) cannot be shipped by air, affecting Express Post availability.
  • We recommend selecting tracked options for valuable items. Untracked orders will not receive tracking numbers or refunds without proof of delivery.
  • Note: Wherever possible, we will combine orders to save on shipping and reduce packaging waste.
  • Note: Orders containing backordered item will delay delivery until all items are available

Warranty & Refund Policy

Warranty & Refund Policy

  • Standard Warranty: 12 months for all products. Low-cost hobby parts have a 90-day warranty unless safe handling is shown.
  • Exceptions: Kits and interfaceable electronics may not be covered if damaged due to misuse.
  • Returns: Contact support via your order confirmation email within 14 days of purchase. Items must be unopened and in original packaging. Proof of purchase is required.
  • Defective/Damaged Items: Notify us within 30 days for a free refund or replacement. Exclusions apply.
  • Return Shipping Costs: Paid by the customer unless the item is defective. Shipping costs are non-refundable.

This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. Equipped with PCF8523 RTC - it can run from 3.3V or 5V power & logic!

Works great with an Arduino using our RTC library, with CircuitPython or with a Raspberry Pi (or similar single board linux computer)

  • PCB & header are included
  • Plugs into any breadboard, or you can use wires
  • Two mounting holes
  • Will keep time for 5 years or more

Note: This product does not come with a CR1220 coin cell battery.

The PCF8523 is simple and inexpensive but not a high precision device. It may lose or gain up to 2 seconds a day. For a high-precision, temperature compensated alternative, please check out the DS3231 precision RTC. If you need a DS1307 for compatibility reasons, check out our DS1307 RTC breakout

Check out our detailed guide for code, libraries, schematics, Fritzing object and more!