PCA9548A Datasheet Low Voltage 8-Channel I2C Switch

Manufacturer: Texas Instruments

PCA9548A low voltage 8-channel i2c switch by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	PCA9548A
Manufacturer	Texas Instruments
File Size	2.99 MB
Description	Low Voltage 8-Channel I2C Switch
Download	PCA9548A Download (PDF)

General Description

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

The SCL/SDA upstream pair fans out to eight downstream pairs, or channels.

Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable control register.

Overview

www.ti.com PCA9548A SCPS143G – JUNE 2009 – REVISEDPMCAARC9H542082A1 SCPS143G – JUNE 2009 – REVISED MARCH 2021 PCA9548A Low Voltage 8-Channel I2C Switch with Reset.

Key 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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