854S54AYI-08LF

Overview

The 854S54AYI-08LF is a clock fan-out buffer and multiplexer integrated circuit manufactured by Renesas Electronics Corporation. It operates with a maximum frequency of 1.3 GHz and supports an input-to-output ratio of 2:1 or 1:2. The device accepts CML, LVDS, or LVPECL differential inputs and provides LVDS differential outputs. It functions within a supply voltage range of 3.135V to 3.465V and is rated for an ambient operating temperature between -40°C and +85°C. The component is housed in a 64-TQFP package with exposed pad.

Feature Summary

• Supports configurable 2:1 or 1:2 signal routing ratios for flexible clock distribution architectures.
• Accepts multiple differential input standards including CML, LVDS, and LVPECL for broad compatibility.
• Generates low-skew LVDS differential outputs suitable for high-speed digital systems.

Applications

• High-performance computing clock distribution networks
• Telecommunications infrastructure timing circuits
• Data center server motherboard clock generation

Procurement Notes

Verify the current lifecycle status as the component may be discontinued. Confirm that the specific package variant matches the design requirements. Ensure the selected part number corresponds exactly to the required electrical specifications and pinout configuration before finalizing procurement decisions.

Selection Notes

Select this component when a dual-mode buffer or multiplexer is required for frequencies up to 1.3 GHz. It is appropriate for designs needing conversion from various differential input levels to LVDS outputs. Consider the 64-TQFP package constraints and thermal dissipation capabilities during the layout phase.

Part Context

This device belongs to the 854S series of high-performance clock solutions. It serves as a critical timing element in complex electronic systems requiring precise signal distribution. The integration of buffering and multiplexing functions reduces the component count compared to using separate discrete devices.

Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify functional equivalence regarding pinout, electrical parameters, and package dimensions before implementing any alternative components in the design.