PCA9546A Description
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 bination of channels can be selected, determined by the contents of the programmable control register.
PCA9546A Key Features
- 1-of-4 bidirectional translating switches
- I2C-bus interface logic; patible 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 bination
- Power-up with all switch channels deselected
- Low Ron switches
- Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
- No glitch on power-up
- Supports hot insertion