PCF8574T I2C I/O Extension Module

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The PCF8574 I/O Extension Board is used as a remote 8-bit I/O expander for I2C-bus. Up to 8x PCF8574, IO Expansion Board can be connected to the I2C-bus, providing up to 64 I/O ports. It has an I2C pin header on one side and an I2C connector on the other. As a result, connecting the board to your development system is more flexible. The board also supports I2C cascading, which allows you to connect multiple modules to the I2C bus at the same time by connecting the header pin connectors.


  • I2C interface
  • It can be used with Arduino or Raspberry pie
  • 8-bit parallel ports
 Model PCF8574T Module 
 Interface I2C
 PCB Dimension(W*L*D) 16mm*48mm*10mm
 Operating Voltage  3-5VDC
Country of Origin China

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