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TCA9801DGKT The TCA9801DGKT is a 2-bit bidirectional level-translating buffer/repeater from Texas Instruments, designed for I2C and SMBus systems. It supports a wide supply voltage range and operates at up to 400 kHz.
Mfr Part #:

TCA9801DGKT

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The TCA9801DGKT is a 2-bit bidirectional level-translating buffer/repeater from Texas Instruments, designed for I2C and SMBus systems. It supports a wide supply voltage range and operates at up to 400 kHz.
✓ Total Stock: 24,110 pcs
$ Price Range: $0.49

TCA9801DGKT Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
24,107 pcs
On Request
24107 pcs On Request 1 On Request On Request On Request On Request On Request
Hybrid Electronics ✓
Non-Authorised Inventory information
3 pcs
On Request
3 pcs On Request 1 On Request On Request NO DC On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TCA9801DGKT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Channel Type
Channels per Circuit
Frequency
Mounting Type
Number of Circuits
Operating Temperature
Output Type
SVHC Present
Supplier Device Package
Translator Type
Voltage
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TCA9801DGKT Description

Short technical summary and product information.

The Texas Instruments TCA9801DGKT is a dual-channel, level-translating buffer and repeater for I2C and SMBus applications. It facilitates bidirectional voltage translation between low voltages down to 0.8 V on the A-side and higher voltages from 1.65 V to 3.6 V on the B-side.

 

This device operates at a maximum frequency of 400 kHz and features an internal current source on the B-side, eliminating the need for external resistors. It supports clock stretching and multiple master arbitration, making it suitable for complex bus configurations. The TCA9801DGKT is designed for a wide operating temperature range of -40°C to 125°C.

 

Packaged in an 8-VSSOP, the TCA9801DGKT is designed for surface mount applications. Its features include an active-high repeater enable input and powered-off high impedance I2C bus pins on the A-side, along with back-power protection on the B-side pins. This buffer is ideal for systems requiring robust I2C communication across different voltage domains.

TCA9801DGKT Quick Information

Product Type: Level Shifter
Canonical Name: TCA9801DGKT 2-bit Level-Translating I2C/SMBus Buffer/Repeater
Subcategory: I2C/SMBus

TCA9801DGKT Compliance

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

TCA9801DGKT Estimated Pricing

Qty Low High
1+ $0.49 $0.49

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

TCA9801DGKT Features

  • 2-bit bidirectional level translation.
  • Supports I2C and SMBus protocols.
  • Wide supply voltage range: 0.8V to 3.6V.
  • Maximum frequency of 400 kHz.
  • Surface mount 8-VSSOP package.

TCA9801DGKT Applications

  • Interfacing I2C devices at different voltages.
  • Level shifting for SMBus communication.
  • Extending I2C bus segments.
  • Multi-voltage domain system designs.

TCA9801DGKT FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for VCCA and VCCB?

VCCA operates from 0.8 V to 3.6 V; VCCB operates from 1.65 V to 3.6 V.

What is the package type of TCA9801DGKT?

The device is available in an 8-VSSOP package (also 8-TSSOP, 8-MSOP).

What is the operating temperature range?

The operating temperature range is –40°C to 125°C.

How many channels does TCA9801DGKT have?

It has 2 bidirectional channels.

What type of translator is TCA9801DGKT?

It is a bidirectional voltage level translator with non-inverted output.

What is the maximum frequency of the TCA9801DGKT?

The maximum frequency is 400 kHz.

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