PCA9546A Datasheet (NXP) - 4-channel I2C switch

PCA9546A, 4-channel I2C switch

The PCA9546A is a quad bidirectional translating switch controlled via the I2C-bus.

The SCL/SDA upstream pair fans out to four 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.

PCA9546A Features

* 1-of-4 bidirectional 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 des