TXV0108RGYR

Overview

The TXV0108RGYR is an 8-bit, dual-supply direction-controlled low-skew, low-jitter voltage translator or buffer manufactured by Texas Instruments. It operates with VCCA and VCCB supply voltages ranging from 1.14V to 3.6V. The device supports data rates up to 500Mbps for 1.65V to 3.6V operation and meets RGMII 2.0 timing specifications, including less than 750ps rise/fall time, less than ±5% duty cycle distortion, and less than ±400ps channel-to-channel skew. It features integrated 10Ω damping output resistors, high drive strength up to 12mA at 3.6V, and operates within a temperature range of -40°C to +125°C in a 24-pin VQFN package.

Feature Summary

• Direction-controlled translation between two independently configurable power rails
• Low-skew and low-jitter performance optimized for strict timing conditions
• Integrated 10Ω damping resistor to minimize signal reflections
• VCC isolation and disconnect functionality prevents current backflow during partial-power-down

Applications

• Medium or short-range radar systems
• ADAS domain controllers
• HVAC controller designs
• Machine vision cameras
• Rack server motherboards

Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel packaging configuration. Confirm that the component version aligns with the latest datasheet revision SCES959A. Ensure compatibility with standard surface-mount assembly processes for the VQFN-24 package. Cross-reference pin assignments against the target schematic to validate DIR and OE control logic requirements.

Selection Notes

Select this component when interfacing skew-sensitive buses like RGMII between MAC and PHY devices. It is suitable for applications requiring asymmetric voltage translation between 1.2V, 1.8V, 2.5V, and 3.3V nodes. Choose this part if partial-power-down support and VCC isolation are necessary to prevent backflow during asynchronous power sequencing.

Part Context

This device belongs to the TXV0108 family of low-skew voltage translators. It serves as a bridge for high-speed digital interfaces where signal integrity and precise timing alignment are critical. The design allows for flexible deployment in complex multi-voltage system architectures common in modern embedded and communication hardware.

Replacement Considerations

Pin-compatible alternative: SN74AVC8T245 (VQFN package).