TXS0108ERGYR

Overview

The TXS0108ERGYR is an eight-channel bidirectional voltage-level translator designed for open-drain and push-pull applications. It utilizes two independent, configurable power rails: Port A operates between 1.2 V and 3.6 V, while Port B supports 1.65 V to 5.5 V, with the constraint that VCCA must be less than or equal to VCCB. The device features a propagation delay of 312 ns and supports data rates up to 60 Mb/s in push-pull configurations. It is housed in a 20-pin VQFN package with an exposed pad and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Automatic direction detection eliminates the need for external direction control signals
• Independent dual power rails enable flexible translation between various low-voltage nodes
• No power sequencing requirements allow either supply rail to ramp up first

Applications

• Communication and networking equipment
• Portable consumer devices
• Computer systems and peripheral interfaces

Procurement Notes

Verify the specific suffix ERGYR corresponds to the VQFN-20 tape-and-reel packaging configuration. Confirm that the required voltage domains adhere to the VCCA <= VCCB constraint during system design. Ensure ESD protection specifications meet the target application's environmental standards before finalizing procurement.

Selection Notes

Select this component when interfacing logic families requiring automatic bidirectional translation without direction pins. It is suitable for systems needing simultaneous conversion across multiple channels with varying voltage levels. Consider the VQFN-20 footprint for space-constrained designs requiring thermal dissipation through the exposed pad.

Part Context

This part belongs to the Texas Instruments TXS0108E series of voltage level translators. It shares functional similarities with other members like the TXS0108EDGSR but differs in package type and specific electrical characteristics. The series is designed to simplify multi-voltage system integration by removing the complexity of manual direction control.

Replacement Considerations

The TXS0108EDGSR serves as a pin-compatible alternative in a VSSOP-20 package. Verify that the different package dimensions and slight variations in propagation delay are acceptable for the existing PCB layout and timing requirements.