The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. The
SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual
SCx/SDx channel or combination of channels can be selected, determined by the
contents of the programmable control register.
An active LOW reset input allows the PCA9548A to recover from a situation where one of
the downstream I2C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the
I2C-bus state machine and causes all the channels to be deselected as does the internal
Power-on reset function.
