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Product details

Parameters

Technology Family TXB Bits (#) 8 High input voltage (Min) (Vih) 0.78 High input voltage (Max) (Vih) 5.5 Output voltage (Max) (V) 5.5 Output voltage (Min) (V) 1.2 IOH (Max) (mA) -0.02 IOL (Max) (mA) 0.02 Rating Catalog open-in-new Find other Auto bidirectional voltage translators

Package | Pins | Size

BGA MICROSTAR JUNIOR (ZXY) 20 8 mm² 2.5 x 3 DSBGA (YZP) 20 NFBGA (NME) 20 SON (DQS) 20 8 mm² 2 x 4 TSSOP (PW) 20 42 mm² 6.5 x 6.4 VQFN (RGY) 20 16 mm² 3.5 x 4.5 VQFN (RGY) 20 16 mm² 4.5 x 3.5 open-in-new Find other Auto bidirectional voltage translators

Features

  • 1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V on B Port (VCCA ≤ VCCB)
  • VCC Isolation Feature – If Either VCC Input Is at GND, All Outputs Are in the High-Impedance State
  • OE Input Circuit Referenced to VCCA
  • Low Power Consumption, 4-µA Max ICC
  • 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
      • 2000-V Human-Body Model (A114-B)
      • 1000-V Charged-Device Model (C101)
    • B Port
      • ±15-kV Human-Body Model (A114-B)
      • ±8-kV Human-Body Model (A114-B) (YZP Package Only)
      • 1000-V Charged-Device Model (C101)

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Description

This 8-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. VCCA should not exceed VCCB.

When the output-enable (OE) input is low, all outputs are placed in the high-impedance state.

The TXB0108 is designed so that the OE input circuit is supplied by VCCA.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

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:
TXB0104 ACTIVE 4-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15 kV ESD Protect Same function for 4-channel voltage translator

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet TXB0108 8-Bit Bidirectional Voltage-Level Translator With Auto-Direction Sensing datasheet (Rev. H) Aug. 25, 2020
Selection guides Voltage translation buying guide Jun. 13, 2019
Application notes Effects of pullup and pulldown resistors on TXS and TXB devices (Rev. A) Mar. 28, 2018
Application notes Factors Affecting VOL for TXS and LSF Auto-bidirectional Translation Devices Nov. 19, 2017
Application notes Biasing Requirements for TXS, TXB, and LSF Auto-Bidirectional Translators Oct. 30, 2017
Application notes A Guide to Voltage Translation With TXS-Type Translators Jun. 29, 2010
Application notes A Guide to Voltage Translation With TXB-Type Translators Mar. 03, 2010

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
10
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices
EVALUATION BOARDS Download
document-generic User guide
20
Description
Flexible EVM designed to support any logic or translation device that has a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic and translation devices with included dual supply support
  • Board has 9 sections that can be broken apart for a smaller form factor
EVALUATION BOARDS Download
document-generic User guide
1099
Description

The TMS320DM36x Digital Video Evaluation Module (DVEVM) enables developers to start immediate evaluation of TI’s Digital Media (DMx) processors and begin building digital video applications such as IP security cameras, action cameras, drones, wearables, digital signage, video doorbells, and (...)

Features
  • TMS320DM368 Digital Media processor-based development board
  • Parallel Camera Input compatible with Leopard Imaging LI-5M02 camera board
  • Video capture of NTSC or PAL signals via component for HD and composite/S-Video for SD
  • NTSC or PAL output via component for HD and composite/S-Video for SD
  • Other (...)
EVALUATION BOARDS Download
document-generic User guide
20
Description
This EVM is designed to support the TXB auto bidirectional families for single, dual, four and eight channel devices. The TXB devices belong to the auto bidirectional translation family with an operating voltage designed to level translation between 1.2V and 5.5 V.
Features
  • Supports the TXB0101, TXB0102, TXB0104, TXB0108
  • Supports DCK, DCU, RUT and RGY packages of TI
  • Option of individual external loading per channel
  • Additional package options supported on the same footprint

Design tools & simulation

SIMULATION MODELS Download
SCEJ242A.ZIP (101 KB) - HSpice Model
SIMULATION MODELS Download
SCEM518G.ZIP (205 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
High-Bandwidth Zero-IF Reference Design for Microwave Backhaul
TIDA-01435 — The TSW40RF82EVM reference design provides a platform to interface the DAC38RF82 with a high-performance modulator - the TRF370417EVM. The TRF370417EVM can modulate wideband signals at up to 6 GHz as would be typical for a microwave backhaul application. The TRF370417 device may be substituted for a (...)
document-generic Schematic document-generic User guide
Design files
REFERENCE DESIGNS Download
SDI Video Aggregation Reference Design
TIDA-00352 This verified reference design is a complete four channel SDI aggregation and de-aggregation solution. One TLK10022 is used to aggregate four synchronous HD-SDI sources together into one 5.94 Gbps serial link. The serial data is transferred via copper or optical fiber where a second TLK10022 is used (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
DisplayPort Video 4:1 Aggregation Reference Design
TIDA-00309 This verified reference design is a complete four channel DisplayPort aggregation and de-aggregation solution. One TLK10022 is used to aggregate four synchronous DisplayPort (DP) sources together into one 10.8 Gbps serial link. The serial data is transferred via copper or optical fiber where a (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Gigabit Ethernet Link Aggregator Reference Design
TIDA-00269 The Gigabit Ethernet Link Aggregator reference design features the TLK10081 device which is a multi-rate link aggregator intended for use in high-speed bi-directional point-to-point data transmission systems to reduce the number of physical links by multiplexing lower speed serial links into higher (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Dual-channel XAUI to SFI Reference Design for Systems with Two or More SFP+ Optical Ports
TIDA-00234 The TIDA-00234 XAUI to SFI reference design is intended for Enterprise and Service Provider Networking applications like Ethernet Switches and Routers that implement multiple 10G Ethernet compliant Optical (SFP+) ports. This reference design features the TLK10232 device which is the most compact (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
BGA MICROSTAR JUNIOR (ZXY) 20 View options
DSBGA (YZP) 20 View options
NFBGA (NME) 20 View options
TSSOP (PW) 20 View options
USON (DQS) 20 View options
VQFN (RGY) 20 View options

Ordering & quality

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