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Auto-direction voltage translators

TXB0304

ACTIVE

4-bit Bidirectional Auto-direction Sensing Translator with Fully Symmetric 0.9V to 3.6V Range

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Data sheet

TXB0304

ACTIVE
Data sheet Order now

Product details

Technology family TXB Applications SPIO Bits (#) 4 Data rate (max) (Mbps) 140 High input voltage (min) (V) 0.81 High input voltage (max) (V) 3.6 Vout (min) (V) 0.9 Vout (max) (V) 3.6 IOH (max) (mA) -0.02 IOL (max) (mA) 0.02 Supply current (max) (µA) 10 Features Edge rate accelerator, Integrated pullup resistors, Output enable, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type 3-State, CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 85
Technology family TXB Applications SPIO Bits (#) 4 Data rate (max) (Mbps) 140 High input voltage (min) (V) 0.81 High input voltage (max) (V) 3.6 Vout (min) (V) 0.9 Vout (max) (V) 3.6 IOH (max) (mA) -0.02 IOL (max) (mA) 0.02 Supply current (max) (µA) 10 Features Edge rate accelerator, Integrated pullup resistors, Output enable, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type 3-State, CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 85
UQFN (RSV) 16 4.68 mm² 2.6 x 1.8 UQFN (RUT) 12 3.4 mm² 2 x 1.7
  • Fully Symmetric Supply Voltages, 0.9 V to 3.6 V on A Port and 0.9 V to 3.6 V
  • VCC Isolation Feature – If Either VCC Input is at GND, all Outputs are in High-Impedance State
  • OE Input Circuit Referenced to VCCA
  • Low Power Consumption, 5 µA Max (ICCA or ICCB)
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 8000-V Human-Body Model (A114-B)
    • 1000-V Charged-Device Model (C101)
  • Fully Symmetric Supply Voltages, 0.9 V to 3.6 V on A Port and 0.9 V to 3.6 V
  • VCC Isolation Feature – If Either VCC Input is at GND, all Outputs are in High-Impedance State
  • OE Input Circuit Referenced to VCCA
  • Low Power Consumption, 5 µA Max (ICCA or ICCB)
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 8000-V Human-Body Model (A114-B)
    • 1000-V Charged-Device Model (C101)

This 4-bit non-inverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from
0.9 V to 3.6 V. This allows for low Voltage bidirectional translation between 1 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V voltage nodes. For the TXB0304, when the output-enable (OE) input is low, all outputs are placed in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pull-down resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The OE device control pin 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. The only difference between TXB0304 and TXBN0304 is the OE signal being active high and active low respectively.

This 4-bit non-inverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from
0.9 V to 3.6 V. This allows for low Voltage bidirectional translation between 1 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V voltage nodes. For the TXB0304, when the output-enable (OE) input is low, all outputs are placed in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pull-down resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The OE device control pin 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. The only difference between TXB0304 and TXBN0304 is the OE signal being active high and active low respectively.
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Technical documentation

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Type Title Date
* Data sheet TXB0304 4-Bit Bidirectional Level-Shifter/Voltage Translator with Automatic Direction Sensing datasheet (Rev. G) PDF | HTML 29 Apr 2019
Application note Overcoming TXB-Type Translators Design Challenges PDF | HTML 18 Sep 2024
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 12 Jul 2024
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
Application note Leveraging Edge Rate Accelerators with Auto-Sensing Level Shifters PDF | HTML 29 Sep 2023
Application note Do’s and Don’ts for TXB and TXS Voltage Level-Shifters with Edge Rate Accelerato PDF | HTML 28 Jun 2023
Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
Technical article How level shifters enable the transition to low-voltage processors in industrial e PDF | HTML 22 Sep 2016
User guide TXB0304EVM 22 Sep 2011

Design & development

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Evaluation board

14-24-NL-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin non-leaded packages

14-24-NL-LOGIC-EVM is a flexible evaluation module (EVM) designed to support any logic or translation device that has a 14-pin to 24-pin BQA, BQB, RGY, RSV, RJW or RHL package.

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TXB0304EVM — TXB0304 Evaluation Module

The TXB0304 is a 4-bit voltage level translator for push-pull applications. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-voltage (...)

User guide: PDF
Not available on TI.com
Simulation model

TXB0304 IBIS Model (Rev. A)

SCEM544A.ZIP (69 KB) - IBIS Model
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Package Pins CAD symbols, footprints & 3D models
UQFN (RSV) 16 Ultra Librarian
UQFN (RUT) 12 Ultra Librarian
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