PCA9674 PCA9674A Remote 8-bit IO expander for Fm I2C-bus with interrupt

The PCA9672 provides general purpose remote I/O expansion for most microcontrollerfamilies vi

The PCA9670 provides general purpose remote I/O expansion for most microcontrollerfamilies vi

The PCA9673 provides general purpose remote I/O expansion for most microcontrollerfamilies vi

The PCA9671 provides general purpose remote I/O expansion for most microcontrollerfamilies vi

The PCA9674/74A is a drop-in upgrade for the PCF8574/74A providing higher Fast-modePlus I2C-bus speeds (1 MHz ...

提供《PCF8574 Remote 8-bit I/O expander for I2C-bus IO扩展芯片测试程序》完整技术工程技术资料下载（归档大小 29 K），包含相关硬件原理图参考、开发文档或源代码工程。