PCA9548A Datasheet (NXP) - 8-channel I2C switch

PCA9548A, 8-channel I2C switch

The PCA9548A is an octal bi-directional 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

PCA9548A Features

* s s s s s s s s s s s s s s s 1-of-8 bi-directional translating switches I2C-bus interface logic; compatible with SMBus standards Active LOW reset input 3 address pins allowing up to 8 devices on the I2C-bus Channel selection via I2C-bus, in any combination Power-up with all switch channels deselect