PCF8574 IO Expansion Board I2C Bus Evaluation Development Board in Pakistan

PCF8574 Expansion board I2C bus Evaluation Development Module is a port extender module for Arduino, Raspberry Pi, and other development boards. I2C IO Expansion Development Board model number is PCF8574. This board supports two interface types that are Pin header or Pin Row. This expansion board supports I2C bus cascading. Due to the bus cascading, multiple I2C modules can be used at the same time. This IO expansion board is used for McUs with I/O Resource Shortage. This module consists of one PCF8574, an I2C interface, and an 8-bit parallel port. 8574 is the main IC of this module and the other 8574_H2 and 8574_H1 attached to the 8574 IC.

Function Introduction of I2C Expansion Board:

• This io expansion board consists of the I2C interface.
• This board could be expanding 8 I/Os with 2 I/O.
• It has flexibility. we can expand more than 8 PCF8574 that we can use at the same time.
• I/O expansion board can be expanding up to 64.

Characteristics of the PCF8574 Expansion Board I2C-Bus Evaluation Development Module:

This expansion board support two interface types one is pin header or Row. This feature makes it more flexible and we can use multiple I2C modules at the same time.

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Review of PCF8574 IO Expansion Board 

Other Types of I2C Expansion Board