PCA9547—I2C总线控制的八进制双向转换开关产品数据手册

The PCA9547 is an octal bidirecTIonal translaTIng mulTIplexer controlled by the I2C-bus.

The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Only one

SCx/SDx channel can be selected at a TIme, determined by the contents of the

programmable control register. The device powers up with Channel 0 connected, allowing

immediate communication between the master and downstream devices on that channel.