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Adafruit PCF8523 Real Time Clock Assembled Breakout Board

SKU: ADA3295

$8.50 AUD, inc GST
$7.73 AUD, exc GST

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Adafruit PCF8523 Real Time Clock Assembled Breakout Board
8.5 AUD

SKU: ADA3295

$8.50 AUD, inc GST
$7.73 AUD, exc GST
1 reviews 0 5 5

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 Adafruit's RTC library 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. Adafruit recommend you purchase a coin cell battery to use with this product.

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 Adafruit's DS1307 RTC breakout

Technical Details

Dimensions:

  • Length: 25.8mm/1.02in
  • Width: 21.8mm/0.86in
  • Height: 5mm/0.2in
  • Weight: 2.3g/0.09oz
  • Mounting holes are 2.2mm(0.086in) diameter, 25mm(0.98in) apart
  • This board/chip uses I2C 7-bit address 0x68

This product is listed in:

Documentation and Resources:

Product Comments


Customer Reviews

  1. Review by Paul verified purchaser
    Rating
    100

    A useful-looking clock for a display clock and time-stamping data logging in a portable transceiver project. Delivered promptly as expected. Prefer Adafruit products for general component and build quality. (Posted on 25/05/2017)

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