Datasheet4U Logo Datasheet4U.com

PCA9546A Datasheet Low Voltage 4-channel I2c And Smbus Switch

Manufacturer: Texas Instruments

Overview: PCA9546A SCPS148I – OCTOBER 2005 – REVISED JUNE 2022 PCA9546A Low Voltage 4-Channel I2C and SMBus Switch with Reset Function.

General 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.

Key Features

  • 1-of-4 Bidirectional Translating Switches.
  • I2C Bus and SMBus Compatible.
  • Active-Low Reset Input.
  • Three Address Pins, Allowing up to Eight PCA9546A Devices on the I2C Bus.
  • Channel Selection Via I2C Bus, in Any Combination.
  • 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.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
NXP Logo PCA9546A 4-channel I2C switch NXP
NXP Logo PCA9546 4-channel I2C switch with reset NXP

More Datasheets from Texas Instruments

Part Number Description
PCA9543A 2-Channel I2C Bus Switch
PCA9544A Low Voltage 4-Channel I2C and SMBus Multiplexer
PCA9545A Low Voltage 4-channel I2C and SMbus Switch
PCA9548A Low Voltage 8-Channel I2C Switch
PCA9515A Dual Bidirectional I2C Bus and SMBus Repeater
PCA9515B Dual Bidirectional I2C Bus and SMBus Repeater
PCA9517 Level-Translating I2C Bus Repeater
PCA9518 Expandable Five-Channel I2C HUB
PCA9534 Remote 8-Bit I2C and SMBus Low-Power I/O Expander
PCA9534A Remote 8-BIT I2C and SMBus Low-Power I/O Expander

PCA9546A Distributor