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Voltage level translators

Resolve input/output voltage difference with level shifter ICs

Our industry-leading portfolio of voltage level translators, or logic level shifters, solves incompatibility differences between different power domains. Browse our wide range of direction-controlled voltage translators, auto bidirectional voltage translators and unidirectional voltage translators.

Unidirectional voltage translators

Up or down translation in push-pull and 3-state output configurations.

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Auto bidirectional voltage translators

Automatic direction sensing for two-way level translation applications.

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Direction-controlled voltage translators

Voltage translation with a dedicated direction control.

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Voltage translating gates

Voltage translation with integrated logic functionality.

GTL, TTL, BTL & ECL transceivers & translators

Voltage translation for standard bus and backplane applications.

Application-specific voltage translators

Voltage translators for standard interfaces such as SPI, SDIO, I2C, and others.

Voltage Translation Buying Guide 

Unsure of which voltage translator class to use for your design? Our buying guide will help you find the logic level shifter for your system design requirements. 

  • Direction-controlled translators are the most flexible, easy to-use, and offer the best signal integrity. Best for one-to-one communication between devices such as RGMII, and with protocols featuring one master. 
  • Auto bidirectional translators are for interfaces that require that the I/O pins of each device be open-drain or open-collector so that any device can start to transmit on the bus. 
  • Unidirectional translators are best when transmitted signals only need to go one direction. Typical examples are reset signals and clock synchronization signals. 

Selecting the right autobidirectional voltage translator for your design

This short video provides an overview of our three autobidirectional families (TXB, TXS and LSF) and when to use them. 

  • TXB is designed to preserve signal integrity in push-pull interfaces.
  • TXS works with both push-pull and open-drain interfaces and includes integrated pull-up resistors.
  • LSF is the most flexible for discrete designs.

Featured logic shifters


Dual-bit dual-supply bus transceiver with configurable voltage translation


4-bit dual-supply bus transceiver with 3-state outputs and independent direction control inputs


Single-bit dual-supply buffered voltage signal converter

Featured evaluation modules 


Evaluation module for small package direction-controlled translation devices.

Supports SN74AXC8T245 in the RJW package and SN74AXC1T45 in DEA & DTQ packages; populates the SN74AVC4T245 in the RSV package. 


1-to 8-bit LSF translator family evaluation module.

The LSF family of devices are level translators that support a voltage range of 0.95-V and 5-V and provide multi-voltage bidirectional translation without a direction pin.


1-to 8-bit TXS translator family evaluation module.

TXS-EVM supports single, dual, quad and octal channel TXS devices. TXS devices belong to the auto bidirectional voltage level translation family with an operating voltage between 1.2-V and 5.5-V.