Real Time Clock PCF8523

  • Brand: Adafruit
  • Product Code: AF3295
  • Stock

    Warehouse Stock Status Location
    Centurion In Stock UL305
    Stellenbosch In Stock Z2108
  • R98.00 (price excl. VAT)


Real Time Clock PCF8523

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 the Adafruit RTC library, with CircuitPython or with a Raspberry Pi (or similar single board linux computer).

The PCF8523 is simple and inexpensive but not a high precision device. It may lose or gain up to 2 seconds a day.
Note: This product does not come with a CR1220 coin cell battery.

Product Video

Quick Spec

  • This board/chip uses I2C 7-bit address 0x68
  • PCB & header are included
  • Plugs into any breadboard, or you can use wires
  • Two mounting holes
  • Will keep time for 5 years or more

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Shipping List

  • 1 X Real Time Clock PCF8523


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Tags: real, time, clock, rtc, pcf8523

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