TXB0108PWR: 8-Bit Bidirectional Voltage-Level Translator, 1.2V-3.6V/1.65V-5.5V, ±15-kV ESD Protection
Texas Instruments

The TXB0108PWR from Texas Instruments is an 8-bit bidirectional voltage-level translator designed for multi-voltage digital system applications. It facilitates communication between devices operating at different voltage levels within a range of 1.2V to 3.6V on its A Port and 1.65V to 5.5V on its B Port, ensuring compatibility across diverse digital ecosystems.

Key features include auto-direction sensing, which simplifies design by eliminating the need for direction control signals. The device also offers a VCC isolation feature, putting all outputs in a high-impedance state if either VCC input is at GND, enhancing system safety during power-up or power-down scenarios. Low power consumption (max 4-μA ICC) and support for partial-power-down mode operation contribute to energy-efficient designs.

With robust ESD protection exceeding ±15-kV Human-Body Model on the B Port, the TXB0108PWR ensures reliability and durability in harsh environments, making it suitable for a wide range of applications.

Key Specifications and Features

  • Bidirectional voltage translation between 1.2V to 3.6V on A Port and 1.65V to 5.5V on B Port
  • VCC isolation feature for safety during power-up or power-down
  • Auto-direction sensing for ease of use
  • Low power consumption: max 4-μA ICC
  • Supports partial-power-down mode
  • ESD protection: ±15-kV Human-Body Model on B Port
  • Latch-Up Performance exceeds 100 mA per JESD 78, Class II

TXB0108PWR Datasheet

TXB0108PWR datasheet (PDF)

TXB0108PWR Substitutes
Equivalent alternate parts that may serve as a substitute for TXB0108PWR, most popular parts first


  • Handsets
  • Smartphones
  • Tablets
  • Desktop PCs


Logic ICs

General information

Voltage-level translators are essential components in multi-voltage digital systems, enabling communication between devices that operate at different logic levels. They are crucial in modern electronics where components with various operating voltages need to interface seamlessly.

When selecting a voltage-level translator, key considerations include the voltage range compatibility, directionality (unidirectional or bidirectional), power consumption, and protection features such as ESD resistance. The TXB0108PWR exemplifies a bidirectional translator with auto-direction sensing, reducing design complexity and enhancing usability.

This component is designed for applications requiring robust ESD protection and low power consumption, making it suitable for portable and power-sensitive devices. Additionally, its support for partial-power-down mode offers flexibility in power management, contributing to energy-efficient designs.

In summary, the TXB0108PWR is a versatile solution for systems requiring reliable voltage-level translation between components operating at different voltages. Its comprehensive feature set ensures compatibility and protection in a wide range of applications, from consumer electronics to industrial control systems.

PartsBox Popularity Index

  • Business: 6/10
  • Hobby: 4/10

Electronic Component Database

Popular electronic components