TXS0108EPWRG4

Overview

The TXS0108EPWRG4 is an eight-channel bidirectional voltage-level translator from Texas Instruments, designed for open-drain and push-pull applications. It operates with a VCCA range of 1.2V to 3.6V and a VCCB range of 1.65V to 5.5V. The device supports data rates up to 100 Mb/s with a typical propagation delay of 312 ns. It functions within an operating temperature range of -40°C to +85°C and draws a maximum quiescent current of 1.5 µA. Packaged in a 20-pin TSSOP.

Feature Summary

• Automatic direction sensing eliminates the need for direction control pins, enabling seamless bidirectional signal translation between different voltage domains.
• Supports both open-drain and push-pull configurations, providing flexibility for various digital interface protocols.
• Integrated electrostatic discharge (ESD) protection ensures robust performance and reliability in sensitive electronic environments.

Applications

• Embedded systems requiring communication between microcontrollers and peripherals operating at different logic levels
• Industrial automation interfaces connecting PLCs, remote I/O modules, and sensors across varying voltage standards
• Consumer electronics such as smartphones and tablets bridging signals between low-voltage processors and higher-voltage memory or display components

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS adherence when sourcing. Confirm the TSSOP-20 package dimensions match your PCB footprint requirements. Ensure the voltage rails on both sides fall within the specified 1.2V–3.6V and 1.65V–5.5V ranges to guarantee proper operation. Check for automotive qualification if the application requires AEC-Q100 standards, as this standard version is general-purpose.

Selection Notes

Select this component when designing systems that require eight parallel channels for bidirectional level shifting without external control logic. It is suitable for applications needing support for both open-drain and push-pull outputs. Consider the 100 Mb/s data rate capability against your system's timing requirements. Evaluate the 1.5 µA quiescent current against power budget constraints for battery-operated devices.

Part Context

This part belongs to the TXS0108E series of voltage translators from Texas Instruments. It serves as a bridge for digital signals between circuits operating at different supply voltages. The EPWRG4 designation specifies the TSSOP-20 package and lead-free manufacturing process. It addresses the common challenge of interfacing modern low-voltage logic with legacy or higher-voltage components in mixed-signal designs.

Replacement Considerations

TXS0108PWR is a direct pin-compatible alternative within the same family offering similar functionality in the same package. TXS0108ERGYR provides equivalent electrical characteristics but utilizes a VQFN-20 package, requiring layout adjustments. Verify that any substitute maintains the required bidirectional capability and voltage range compatibility.