TCA4311ADR The Texas Instruments TCA4311ADR is a 2-bit bidirectional hot-swappable I2C/SMBus buffer. It operates from 2.7V to 5.5V and supports a maximum frequency of 400kHz.
Mfr Part #:

TCA4311ADR

Available from 5 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA4311ADR is a 2-bit bidirectional hot-swappable I2C/SMBus buffer. It operates from 2.7V to 5.5V and supports a maximum frequency of 400kHz.
Total Stock: 73,032 pcs
$ Price Range: $1.31

TCA4311ADR Available from 5 distributors

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TCA4311ADR Specifications Quick View

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TCA4311ADR Description

Short technical summary and product information.

The TCA4311ADR from Texas Instruments is a 2-bit bidirectional buffer designed for hot-swappable I2C and SMBus applications. It operates within a wide power-supply voltage range of 2.7V to 5.5V, making it versatile for various system designs.

 

This buffer enhances I2C bus performance by increasing fanout and preventing corruption during live board insertion or removal due to its 1-V precharge on SDA and SCL lines. The input and output lines are isolated, accommodating both Standard Mode and Fast Mode I2C devices while improving noise immunity.

 

Packaged in an 8-SOIC format, the TCA4311ADR is suitable for surface mount applications. Its operating temperature range is -40°C to 85°C. Key features include an enable pin and a READY open-drain output that supports clock stretching, arbitration, and synchronization.

 

Applications for the TCA4311ADR include hot board insertion and bus extension, where reliable communication over the I2C bus is critical.

TCA4311ADR Quick Information

Product Type: I2C/SMBus Buffer
Canonical Name: TCA4311A Hot Swappable 2-Wire Bus Buffer
Subcategory: I2C/SMBus Buffer

TCA4311ADR Compliance

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

TCA4311ADR Estimated Pricing

Qty Low High
1+ $1.31 $1.31

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

TCA4311ADR Features

  • 2-bit bidirectional hot-swappable I2C/SMBus buffer.
  • Operates from 2.7V to 5.5V supply voltage.
  • Supports up to 400kHz I2C/SMBus frequency.
  • Surface mountable in an 8-SOIC package.
  • Designed for hot board insertion and bus extension.

TCA4311ADR Applications

  • Ideal for hot-swappable backplane systems.
  • Extends I2C bus reach and fanout.
  • Improves noise immunity in bus communication.
  • Suitable for systems requiring live board insertion.

TCA4311ADR FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA4311ADR?

The operating voltage range for the TCA4311ADR is 2.7V to 5.5V.

What is the maximum frequency supported by the TCA4311ADR?

The TCA4311ADR supports a maximum frequency of 400kHz.

What type of package is the TCA4311ADR supplied in?

The TCA4311ADR is supplied in an 8-SOIC package.

What is the operating temperature range for the TCA4311ADR?

The operating temperature range for the TCA4311ADR is -40°C to 85°C.

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