PCF8574 Mini Board
The PCF8574 Mini Board is a quick and easy solution to extending and adding output ports to your control system. The board
connects to a standard I2C bus and adds an additional 8 output ports to your system. A total of 8 of these boards can
be added to a single I2C bus with each board having a unique address.
The PCF8574 Mini Board includes the Philips Semiconductor PCF8574 IC together with selectable pull-up resistors for
the I2C Bus. The output connections use a standard IDCC connector, and can be easily connected to external equipment.
A set of 3 jumpers are included on the board for address selection.
The PCF8574 Mini Board is a great way of extending the number of output points available for your control system.
Features
Includes the Philips Semiconductor PCF8574 IC
Connects directly to a standard I2C Bus
Selectable Address enabling a total of 8 Boards to be connected to a single I2C Bus
Selectable Pull-Up Resistors Included
Standard IDCC Connector for Output Termination
Works with Most Microcontrollers and I2C Bus Systems
Board Dimensions: 45 x 55 mm
Technical Data
PCF8574 Datasheet 
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