RTC real time clock module PCF8523 - STEMMA QT / Qwiic - Adafruit 5189

Index: ADA-20176 EAN: 5904422348892
A real-time clock (RTC) module manufactured by Adafruit and featuring the PCF8523 chip. It is also a calendar optimized for low power consumption. Data is transmitted serially over the I2C bus with a maximum baud rate of up to 1000 kbit/s. The RTC PCF8523 real time clock module is also equipped with a battery socket. Thanks to the battery, the power supply is maintained even if the main power supply to the device is interrupted.
RTC real time clock module PCF8523 - STEMMA QT / Qwiic - Adafruit 5189
€7.14
€5.80 tax excl.
Delivery scheduled for 2022-12-16
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Manufacturer: Adafruit
Compatibility: Arduino Raspberry Pi

Product description: RTC real time clock module PCF8523 - STEMMA QT / Qwiic - Adafruit 5189

A real time clock (RTC) module manufactured by Adafruit and featuring the PCF8523 chip. It is also a calendar optimized for low power consumption. Data is transmitted serially over the I2C bus with a maximum baud rate of up to 1000 kbit/s. The RTC PCF8523 real time clock module is also equipped with a battery socket. Thanks to the battery the power supply is maintained even if the main power supply to the device is interrupted.

The kit does not include CR1220 battery. It should be purchased separately.

Moduł z zegarem czasu rzeczywistego RTC wyposażony w złącze bateryjne.

Real time clock RTC module equipped with battery connector.

Features of Adafruit module

The PCF8523 Real-Time Clock RTC module features a battery connector, allowing the RTC to maintain timing accuracy even when the main power to the device is interrupted. The module provides information such as seconds, minutes, hours, day, week, month and year. The clock operates in 24-hour or 12-hour format with AM / PM indicator. However, it is not a highly accurate module - it can achieve a delay of up to 2 seconds in a single day of operation.

Applications and suggested use

  • Event reminder
  • External MCU wake-up source

Description of module pinouts

  • VIN - power supply
  • GND - ground
  • SCL - I2C data line
  • SDA - I2C clock line

Manufacturer provides detailed user guide for RTC module with example code and connection instructions.

Przykład podłączenia do mikrokontrolera


Example of connection to the board.

Moduł z zegarem czasu rzeczywistego RTC PCF8523.

ThePCF8523 real-time clock module RTC.

RTC module specification

  • Supply voltage: from 3 V to 5 V
  • Communication interface: I2C bus
  • I2C address: 0x68
  • Data resolution: from seconds to years
  • Product size: 22.5 x 21 mm

Set contents

  • RTC real time clock module PCF8523 - STEMMA QT / Qwiic - 1 pc.
  • Raster 2.544 mm goldpin strip for self-soldering - 1 pc.
Sensor - type RTC

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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Product reviews

RTC real time clock module PCF8523 - STEMMA QT / Qwiic - Adafruit 5189

5/5

Average grade

1

Customers opinion
29.03.2022
Cool clock. Everything works :)

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