PCA9543A Overview
The PCA9543A is a dual bidirectional translating switch controlled by the I2C bus. The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Either individual SCn/SDn channel or both channels can be selected, determined by the contents of the programmable control register.
PCA9543A Key Features
- 1 1-of-2 Bidirectional Translating Switches
- I2C Bus and SMBus patible
- Two Active-Low Interrupt Inputs
- Active-Low Interrupt Output
- Active-Low Reset Input
- Two Address Pins Allowing up to Four PCA9543A
- Channel Selection Via I2C Bus, in Any
- Power-up With All Switch Channels Deselected
- Low RON Switches
- Allows Voltage-Level Translation Between
