Download TCA9543A Datasheet PDF
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TCA9543A Description

The TCA9543A 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.

TCA9543A 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 TCA9543A
  • Channel selection via I2C bus, in any bination
  • Power-up with all switch channels deselected
  • Low RON switches
  • Allows voltage-level translation between