What are the key features of this device?

Key features include 8-channel selection via I2C, active-low reset input, voltage-level translation (1.8V to 5V), and 5V tolerant inputs.

How does the voltage translation work?

The pass-gate transistors allow the VCC pin to limit the maximum high voltage passed, enabling communication between buses of different voltages (e.g., 3.3V and 5V) using external pull-up resistors.

What should be considered during PCB layout?

Keep data lines (SCn and SDn) as short as possible to minimize bus capacitance and use a dedicated ground plane for low-impedance paths.

What is the pinout of PCA9548APWR?

Use the PCA9548APWR datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about PCA9548APWR pinout to locate pins, power rails, and interface signals before layout.

PCA9548APWR Datasheet, Specs, Alternatives & ECAD | Texas Instruments

AI summary

The PCA9548APWR is an 8-channel I2C switch used to expand I2C bus capacity and resolve slave address conflicts.

Best for

I2C bus expansion
Resolving address conflicts
Mixed-voltage systems

Avoid if

High-speed non-I2C applications

Check before use

Pull-up resistor values
Bus capacitance limits

Key specifications

Channels: 8
Voltage Range: 2.3V - 5.5V
Max Frequency: 400 kHz

Compliance & Environment

RoHS: ROHS3 Compliant
REACH: -
MSL: Level-1-260C-UNLIM
ECCN: -
HTSUS: -

Application

IndustrialConnectivity

Datasheet

Texas-Instruments-company-64.pdf

800 KB

Datasheet AI

CAD Models

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Verified KiCad 8 symbol, footprint, and 3D model

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is an 8-channel bidirectional I2C switch that allows a single master to communicate with multiple slave devices, even if they share the same I2C address.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the PCA9548APWR?+×

What are the key features of this device?+×

How does the voltage translation work?+×

What should be considered during PCB layout?+×

What is the pinout of PCA9548APWR?+×