Voltage translators & level shifters

Resolve input and output voltage differences with level-shifter ICs

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Our industry-leading portfolio of voltage-level translators or logic-level shifters helps solve incompatibilities between power domains. Browse our application-specific voltage translators, direction-controlled voltage translators, auto-direction voltage translators and fixed-direction voltage translators.

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Featured voltage translators

SN74AVCH4T245-Q1
Direction-controlled voltage translators

Automotive 4-bit dual-supply bus transceiver with configurable voltage-level shifting and bus hold

Approx. price (USD) 1ku | 0.554

SN74LV4T125-EP
Fixed-direction voltage translators

Enhanced-product four-bit fixed-direction level translator

Approx. price (USD) 1ku | 1.75

SN74LV6T07-EP
Fixed-direction voltage translators

Enhanced-product six-bit open-drain fixed-direction level translator

Approx. price (USD) 1ku | 2.25

TXV0108
Direction-controlled voltage translators

Dual-supply direction-controlled eight-channel voltage translator

Approx. price (USD) 1ku | 0.4

SN74LV6T14-EP
Fixed-direction voltage translators

Enhanced-product six-bit inverting fixed-direction level translator with Schmitt-trigger inputs

Approx. price (USD) 1ku | 2.7

TXV0108-Q1
Direction-controlled voltage translators

Automotive, dual-supply direction-controlled eight-channel voltage translator

Approx. price (USD) 1ku | 0.472

Select from our comprehensive voltage translation portfolio for your design

Benefits of our auto-direction translators

Auto-direction voltage translators are available in dual supply configurations. They automatically sense the direction of the signal without the need for a direction control pin.  There are a number of trade-offs including drive-strength, data rate, and multi-voltage translation. The wide range of functionalities provide options to fit every design need.

  • Works with bi-directional signals
  • Devices available that have been optimized for common interfaces
  • Works with both open-drain and push-pull interfaces
  • Design flexibility with external pull-up resistors
  • Open Drain use cases include: I2C, MDIO, SMBUS, GPIO
  • Push Pull use cases include: GPIO, SPI, UART, JTAG, I2S, RGMII
  • Multi-sourced package and pinouts
Featured products for Auto-direction voltage translators
TXS0102 ACTIVE 2-Bit Bidirectional Voltage-Level Shifter for Open-Drain and Push-Pull Application
TXB0104 ACTIVE 4-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15 kV ESD Protect
TXS0108E ACTIVE 8-bit bidirectional voltage-level shifter for open-drain and push-pull application

Benefits of our direction-controlled translators

Direction-Controlled voltage translators perform non-inverting up or down translation of a uni-directional signal. These have one or more direction control pins that allow the designer to configure which pins are inputs and outputs. This enables simultaneous up and down translation on one device and gives more flexibility. Many devices feature Bus Hold, which retains the last known state of the output when the inputs are floating or high impedance.

  • Push Pull buffered output for high drive strength
  • One or more direction control pins
  • Devices available that have been optimized for common interfaces
  • Bus Hold functionality available, indicated by “H” in part number
  • Use cases include: SPI, UART, JTAG, GPIO, I2S, RGMII
  • Multi-sourced package and pinouts
Featured products for Direction-controlled translators
SN74LXC8T245 ACTIVE 8-bit dual-supply bus transceiver with configurable voltage-level shifting and tri-state outputs
SN74LXC1T45 ACTIVE Single-bit dual-supply bus transceiver with configurable voltage-level shifting and 3-state outputs
SN74AXC4T774 ACTIVE 4-bit dual-supply bus transceiver with 3-state outputs and independent direction control inputs

Benefits of our fixed-direction translators

Fixed-direction translators perform a single direction, noninverting up or down translation of an incoming signal at the input of a device to the output of the device. Single supply translators have one supply voltage, which provides the reference level for the output to track and include translating buffers, as well as translating logic gates. Translating logic gates have built-in logic functionality, and perform up or down voltage translation.

  • Single supply translators provide simplicity in system design. 
  • Dual supply translators provide dynamic operating range for voltage translation. 
  • Voltage translating logic gates achieve two functions in one chip.
  • Use cases include: GPIO, SPI,UART,JTAG,I2S
Featured products for Fixed-direction voltage translators
TXU0304 ACTIVE Four-channel fixed multidirectional level shifter
TXU0102 ACTIVE Two channel fixed-direction level shifter with channels in same direction
SN74LV4T125-Q1 ACTIVE Automotive single-supply quadruple buffer gates with 3-state output level shifter

Technical resources

Selection guide
Selection guide
Voltage Translation Buying Guide (Rev. A)
Read an introduction to the various voltage translation technologies to understand what family or device is best suited for your design needs to solve system challenges. 
document-pdfAcrobat PDF
Product overview
Product overview
Voltage Translation Application Quick Reference
This reference will help you to easily and quickly find the right voltage translation part for the interface you are designing, whether it is SPI, UART, I2C or more. 
document-pdfAcrobat PDF
Video series
Video series
The Logic Minute video series
Watch The Logic Minute video series which makes complex logic and voltage translation easy to understand in just a couple of minutes.

Discover featured applications

ADAS
Enabling next-generation ADAS domain controllers with voltage translation
Solar panels
Designing smarter solar-panel inverters with voltage-level translation
Industrial PCs
Enabling industrial PC connectivity with level translation

Enabling next-generation ADAS domain controllers with voltage translation

Level translators improve and simplify domain controller to peripheral input/output (I/O) interface designs in advanced driver assistance systems (ADAS). A voltage-level translator can help resolve I/O level mismatches between lower-power processors in ADAS domain controllers and peripheral devices for interfaces such as I2C, Serial Peripheral Interface, Reduced Gigabit Media-Independent Interface, SMBus, I2S, and general-purpose input/output.

Benefits:

  • Enables lower-power designs.
  • Simplifies processor to peripheral interface designs.
  • Enables a wider selection of peripheral devices.

Featured resources

REFERENCE DESIGNS
  • TIDEP-01017 – Cascade imaging radar capture reference design using Jacinto™ ADAS processor
PRODUCTS
  • LSF0102-Q1 – Automotive Dual-Channel Bidirectional Multi-Voltage Level Translator
  • TXB0104-Q1 – Automotive 4-bit bidirectional voltage-level translator with auto direction sensing and +/-15kV ESD
  • TXU0304-Q1 – Automotive four-channel fixed multidirectional level shifter

Designing smarter solar-panel inverters with voltage-level translation

One of the primary design challenges for solar inverters is aligning the lower input/output (I/O) voltage levels of the microcontroller with the higher I/O voltage levels of peripheral devices. Voltage-level translators help resolve I/O level mismatches between processors and peripheral devices easily, efficiently and cost-effectively, without sacrificing system performance.

Benefits:

  • Enables lower-power designs.
  • Simplifies processor to peripheral interface designs.
  • Enables a wider selection of peripheral devices.

Featured resources

REFERENCE DESIGNS
  • TIDA-00816 – Grid IoT Reference Design: Connecting Fault Indicators, Data Collector, Mini-RTU Using Sub-1GHz RF
PRODUCTS
  • SN74LXC1T45 – Single-bit dual-supply bus transceiver with configurable voltage-level shifting and 3-state outputs
  • SN74LVC4245A – Octal Bus Transceiver And 3.3-V To 5-V Shifter With 3-State Outputs
  • SN74LXC8T245 – 8-bit dual-supply bus transceiver with configurable voltage-level shifting and tri-state outputs

Enabling industrial PC connectivity with level translation

Both single-board and computer-on-module industrial computers support an array of input/output (I/O) types and interface standards operating at low voltages. Voltage-level translators enable system designers to overcome the design challenges associated with connecting the lower-voltage I/Os of industrial PCs with peripherals operating at different voltage levels.

Benefits:

  • Enables lower-power designs.
  • Simplifies industrial PC I/O interface designs.
  • Enables a wider selection of peripheral devices.

Featured resources

REFERENCE DESIGNS
  • TIDA-00375 – UART to Wi-Fi Bridge with 24 VAC Power Reference Design
PRODUCTS
  • TXU0304 – Four-channel fixed multidirectional level shifter
  • SN74GTL2014 – 4-bits LVTTL to GTL Transceiver
  • SN74AXC1T45 – Single-bit dual-supply bus transceiver