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PCA9546A

PCA9546A is Low Voltage 4-Channel I2C and SMBus Switch manufactured by Texas Instruments.
PCA9546A datasheet preview

PCA9546A Datasheet

Part number PCA9546A
Download PCA9546A Datasheet (PDF)
File Size 2.50 MB
Manufacturer Texas Instruments
Description Low Voltage 4-Channel I2C and SMBus Switch
PCA9546A page 2 PCA9546A page 3

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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 SCn/SDn 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 and SMBus patible
  • Active-Low Reset Input
  • Three Address Pins, Allowing up to Eight
  • Channel Selection Via I2C Bus, in Any
  • Power-up With All Switch Channels Deselected
  • Low RON Switches
  • Allows Voltage-Level Translation Between
  • No Glitch on Power-up
  • Supports Hot Insertion

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