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TCA9548APWR The Texas Instruments TCA9548APWR is an 8-channel I2C/SMBus switch designed for voltage translation between 1.8V, 2.5V, 3.3V, and 5V buses. It operates within a supply voltage range of 1.65V to 5.5V.
Mfr Part #:

TCA9548APWR

Available from 7 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA9548APWR is an 8-channel I2C/SMBus switch designed for voltage translation between 1.8V, 2.5V, 3.3V, and 5V buses. It operates within a supply voltage range of 1.65V to 5.5V.
✓ Total Stock: 17,755 pcs
$ Price Range: $0.53

TCA9548APWR Available from 7 distributors

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TCA9548APWR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Clock Frequency
Frequency
Independent Circuits
Mounting Type
Number of Channels
Operating Temperature
Supplier Device Package
Type
Voltage
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TCA9548APWR Description

Short technical summary and product information.

The TCA9548APWR from Texas Instruments is an active-low, 8-channel bidirectional translating switch controlled via the I2C bus. This device is compatible with both I2C and SMBus protocols, offering flexibility in system design.

 

Key electrical specifications include an operating supply voltage range of 1.65V to 5.5V and a maximum clock frequency of 400kHz. The operating temperature range is from -40°C to 85°C. It features 5-V tolerant inputs, supporting voltage-level translation between common logic levels.

 

Designed for ease of integration, the TCA9548APWR has three address pins, allowing up to eight devices on a single I2C bus. It powers up with all switch channels deselected, preventing glitches. The device is available in a 24-TSSOP package, suitable for surface mounting.

 

This I2C switch is ideal for applications requiring multiple I2C devices on a single bus or needing to interface between buses operating at different voltage levels.

TCA9548APWR Quick Information

Product Type: I2C Switch
Canonical Name: TCA9548A 8-Channel I2C/SMBus Switch
Subcategory: I2C Switches

TCA9548APWR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TCA9548APWR Estimated Pricing

Qty Low High
1+ $0.53 $0.53

Estimated market price range - modelled values for guidance only, not live distributor offers.

TCA9548APWR Features

  • 8-channel bidirectional translating switches.
  • Supports I2C and SMBus protocols.
  • Voltage translation between 1.8V to 5V.
  • Operates from 1.65V to 5.5V supply.
  • Available in 24-TSSOP package.

TCA9548APWR Applications

  • I2C bus multiplexing in multi-device systems.
  • Level shifting between 1.8V and 5V domains.
  • Server and networking equipment.
  • Industrial control systems.
  • Consumer electronics.

TCA9548APWR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating supply voltage range?

1.65V to 5.5V.

What package is the TCA9548APWR available in?

24-TSSOP (0.173", 4.40mm Width).

What is the operating temperature range?

-40°C to 85°C.

How many channels does the TCA9548APWR have?

8 channels.

What is the circuit configuration?

1 x 8:1.

What is the maximum clock frequency?

400kHz.

Are the inputs 5V tolerant?

Yes.

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