Description

PCF8574T Module PCF8574 Module IO Expansion Module I/O Expansion Module I2C

 

Graphics and text details

Product introduction
Functional introduction: Features: Typical applications: Main resources: Materials include:

I/O expansion module based on I2C interface, using 2 I/O to expand 8 I/O (up to 8 PCF8574 can be used simultaneously, expanding to 64 I/O)

1. Support two types of interface access to the target board: pin header or socket

2. Support I2C bus cascading (through the method of pin header and socket docking, multiple I2C modules can be used simultaneously)
I/O expansion for MCUs with scarce I/O resources

PCF8574, I2C interface, 8-bit parallel port

Test program (AVR, STM8, C8051F)

Circuit schematic
Related PDF materials

Data download link: www.waveshare.net/wiki/PCF8574_IO_Expansion_Board