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TCA6408ARGTR The Texas Instruments TCA6408ARGTR is an 8-bit I2C/SMBus IO expander. It operates from 1.65V to 5.5V and features a 400kHz clock frequency.
Mfr Part #:

TCA6408ARGTR

Available from 5 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA6408ARGTR is an 8-bit I2C/SMBus IO expander. It operates from 1.65V to 5.5V and features a 400kHz clock frequency.
Total Stock: 16,869 pcs
$ Price Range: $0.50

TCA6408ARGTR Available from 5 distributors

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7,417 pcs
7417 pcs On Request 1 On Request On Request 21 On Request On Request
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2,898 pcs
2898 pcs On Request 1 On Request On Request 18+22+ On Request On Request
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2,858 pcs
2858 pcs On Request 1 On Request On Request 21+ On Request On Request
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2,000 pcs
2000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
1,696 pcs
1696 pcs On Request 1 On Request On Request On Request On Request On Request

TCA6408ARGTR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Supplier Package
Voltage

TCA6408ARGTR Description

Short technical summary and product information.

The TCA6408ARGTR from Texas Instruments is an 8-bit I2C and SMBus compatible I/O expander. It supports a wide operating power-supply voltage range from 1.65V to 5.5V, enabling bidirectional voltage-level translation and GPIO expansion between common voltage rails like 1.8V, 2.5V, 3.3V, and 5V.

 

This device features a maximum clock frequency of 400kHz and offers an interrupt output and a reset pin. The I/O ports are 5V tolerant, and it includes configuration registers for flexible control. It operates within an industrial temperature range of -40°C to 85°C.

 

The TCA6408ARGTR is available in a 16-VQFN (3x3) package, suitable for surface mount applications. Its design includes features like internal power-on reset, no glitch on power up, and a noise filter on SCL and SDA inputs, enhancing its reliability in various electronic designs.

TCA6408ARGTR Quick Information

Product Type: IO Expander
Canonical Name: TCA6408ARGTR 8-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers
Subcategory: IO Expander

TCA6408ARGTR Compliance

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

TCA6408ARGTR Estimated Pricing

Qty Low High
1+ $0.50 $0.50

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

TCA6408ARGTR Features

  • 8-bit I2C/SMBus IO expander.
  • Supports 1.65V to 5.5V operation.
  • Features interrupt and reset outputs.
  • Operates at up to 400kHz clock frequency.
  • Available in 16-VQFN surface mount package.

TCA6408ARGTR Applications

  • Ideal for voltage-level translation.
  • Provides additional GPIO expansion.
  • Suitable for embedded systems.
  • Facilitates I2C/SMBus communication.
  • Designed for surface mount assembly.

TCA6408ARGTR FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA6408ARGTR?

The TCA6408ARGTR operates from 1.65V to 5.5V.

What package type is the TCA6408ARGTR available in?

The TCA6408ARGTR is available in a 16-VQFN (3x3) package, also referred to as 16-VFQFN Exposed Pad.

What is the operating temperature range for the TCA6408ARGTR?

The operating temperature range for the TCA6408ARGTR is -40°C to 85°C.

Does the TCA6408ARGTR have an interrupt output?

Yes, the TCA6408ARGTR features an interrupt output.

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