RTC real time clock module PCF8523 - STEMMA QT / Qwiic - Adafruit 5189
- Product Code:
- 46852510
Properties
Other features
- Brand
- Adafruit
- Transducer Type
- RTC
Description
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.
Real time clock RTC module equipped with battery connector.
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.
- Event reminder
- External MCU wake-up source
- 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.
Example of connection to the board.
ThePCF8523 real-time clock module RTC.
- 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
- RTC real time clock module PCF8523 - STEMMA QT / Qwiic - 1 pc.
- Raster 2.544 mm goldpin strip for self-soldering - 1 pc.
- Manufacturer's website: Adafruit 5189
- User guide
- EagleCAD PCB files
- Technical documentation PCF8523
