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Product details

Parameters

Technology Family TXS Applications I2C, MDIO Bits (#) 2 High input voltage (Min) (Vih) 1.45 High input voltage (Max) (Vih) 5.5 Vout (Min) (V) 1.65 Vout (Max) (V) 5.5 IOH (Max) (mA) 0 IOL (Max) (mA) 0 Rating Catalog open-in-new Find other Auto bidirectional voltage translators

Package | Pins | Size

DSBGA (YZP) 8 3 mm² .928 x 1.928 SSOP (DCT) 8 8 mm² 3 x 2.8 SSOP (DCT) 8 8 mm² 2.95 x 2.80 VSSOP (DCU) 8 6 mm² 2 x 3.1 X2SON (DQE) 8 1 mm² 1.4 x 1 X2SON (DQM) 8 2 mm² 1.8 x 1.2 open-in-new Find other Auto bidirectional voltage translators

Features

  • No Direction-Control Signal Needed
  • Maximum Data Rates
    • 24 Mbps (Push Pull)
    • 2 Mbps (Open Drain)
  • Available in the Texas Instruments NanoStar™ Package
  • 1.65 V to 3.6 V on A Port and 2.3 V to 5.5 V on B Port (VCCA  ≤ VCCB)
  • VCC Isolation Feature: If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State
  • No Power-Supply Sequencing Required: Either VCCA or VCCB Can Be Ramped First
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • A Port:
      • 2500-V Human-Body Model (A114-B)
      • 250-V Machine Model (A115-A)
      • 1500-V Charged-Device Model (C101)
    • B Port:
      • 8-kV Human-Body Model (A114-B)
      • 250-V Machine Model (A115-A)
      • 1500-V Charged-Device Model (C101)

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Description

This two-bit non-inverting translator is a bidirectional voltage-level translator and can be used to establish digital switching compatibility between mixed-voltage systems. It uses two separate configurable power-supply rails, with the A ports supporting operating voltages from 1.65 V to 3.6 V while it tracks the VCCA supply, and the B ports supporting operating voltages from 2.3 V to 5.5 V while it tracks the VCCB supply. This allows the support of both lower and higher logic signal levels while providing bidirectional translation capabilities between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.

When the output-enable (OE) input is low, all I/Os are placed in the high-impedance state, which significantly reduces the power-supply quiescent current consumption.

To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TXS0104E ACTIVE 4-Bit Bidirectional Voltage-Level Shifter for Open-Drain and Push-Pull Applications Same function for 4-channel voltage translator

Technical documentation

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Type Title Date
* Data sheet TXS0102 2-Bit Bidirectional Voltage-Level Translator datasheet (Rev. I) Aug. 27, 2018
User guide TXS-EVM User's Guide (Rev. B) Jun. 08, 2021
Selection guide Voltage Translation Buying Guide (Rev. A) Apr. 15, 2021
Technical article How smart thermostats get their degrees Mar. 09, 2020
Application note Effects of pullup and pulldown resistors on TXS and TXB devices (Rev. A) Mar. 28, 2018
Application note Factors Affecting VOL for TXS and LSF Auto-bidirectional Translation Devices Nov. 19, 2017
Application note Biasing Requirements for TXS, TXB, and LSF Auto-Bidirectional Translators Oct. 30, 2017
Application note A Guide to Voltage Translation With TXS-Type Translators Jun. 29, 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
10
Description
Flexible EVM designed to support any device that has a DCK, DCT, DCU, DRL, or DBV package in a 5 to 8 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices
EVALUATION BOARD Download
document-generic User guide
20
Description

The TXS-EVM is designed to support single, dual, quad and octal channel TXS devices. The TXS devices belong to the auto bidirectional voltage level translation family with an operating voltage between 1.2V and 5.5 V designed to support various generic voltage level translation applications across (...)

Features
  • Supports the TXS0101, TXS0102, TXS0104e, TXS0108e
  • Supports DCK, DQE, PW and RGY families of TI
  • Option of individual external loading per channel
  • Additional package options supported on the footprint

Reference designs

Many TI reference designs include the TXS0102 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
DSBGA (YZP) 8 View options
SM8 (DCT) 8 View options
VSSOP (DCU) 8 View options
X2SON (DQE) 8 View options
X2SON (DQM) 8 View options

Ordering & quality

Information included:
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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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