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PCA9548A - Low Voltage 8-Channel I2C Switch

Datasheet Summary

Description

The PCA9548A device has eight bidirectional translating switches that can be controlled through the I2C bus.

eight downstream pairs, or channels.

Features

  • 1-of-8 Bidirectional Translating Switches.
  • I2C Bus and SMBus Compatible.
  • Active-Low Reset Input.
  • Three Hardware Address Pins for Use of up to Eight PCA9548A Devices on the I2C Bus.
  • Channel Selection Via I2C Bus.
  • 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.

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Datasheet preview – PCA9548A

Datasheet Details

Part number PCA9548A
Manufacturer Texas Instruments
File Size 2.99 MB
Description Low Voltage 8-Channel I2C Switch
Datasheet download datasheet PCA9548A Datasheet
Additional preview pages of the PCA9548A datasheet.

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Full PDF Text Transcription

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www.ti.com PCA9548A SCPS143G – JUNE 2009 – REVISEDPMCAARC9H542082A1 SCPS143G – JUNE 2009 – REVISED MARCH 2021 PCA9548A Low Voltage 8-Channel I2C Switch with Reset 1 Features • 1-of-8 Bidirectional Translating Switches • I2C Bus and SMBus Compatible • Active-Low Reset Input • Three Hardware Address Pins for Use of up to Eight PCA9548A Devices on the I2C Bus • Channel Selection Via I2C Bus • 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 • Low Standby Current • Operating Power-Supply Voltage Range of 2.3 V to 5.
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