Specifications: Typical applications: for I / O resource constraints the MCU I / O expansion The main resources: PCF8574, I2C interface, the 8-bit parallel Size:54*15mm Package Included: 10x PCF8574 PCF8574T Communication Module

Package:10pcs PCF8574 IO expansion board I/O expander I2C evaluation development module. Uses:I2C expansion board can achieve the need for multiple I/O interface functions,which is used in electronics, computers and so on.Applicable for AVR, ARM, STM8, for Arduino and other platforms. Interface type: Support pin,row seat two interface types to access the target board. The PCF8574 IO expansion chip has an I2C interface and is 8-bit parallel,which provides universal remote IO expansion over a dual-wire bidirectional i2c bus (Serial Clock (SCL),Serial Data (SDA). PCF8574 IO expansion board with standard interface,and can be extended to a variety of development boards.As a remote 8-bit I/O expansion board of the i2c bus, the I/O expansion module is based on the I2C interface can expand 8 I/ OS using 2 I/ OS.More than 8 PCF8574 can be used at the same time and up to 64 I/ OS can be extended.