854S54AYI-08LFT

Overview

The Renesas Electronics Corporation 854S54AYI-08LFT is a clock fanout buffer and multiplexer IC designed for high-speed signal distribution. It features eight circuits with a maximum operating frequency of 1.3 GHz. The device supports differential inputs including CML, LVDS, and LVPECL, converting them to LVDS outputs. It offers flexible 2:1 and 1:2 input-to-output ratios. Powered by a single supply voltage ranging from 3.135V to 3.465V, the component operates within a temperature range of -40°C to 85°C. It is housed in a 64-TQFP package with an exposed pad.

Feature Summary

• Supports multiple differential input standards including CML, LVDS, and LVPECL
• Provides configurable 2:1 and 1:2 signal routing ratios
• Operates at frequencies up to 1.3 GHz

Applications

• High-speed clock distribution networks
• Multiplexing applications requiring signal format conversion
• Data communication systems utilizing LVDS interfaces

Procurement Notes

This component is officially listed as obsolete and no longer manufactured by Renesas Electronics Corporation. Procurement should focus on verifying the authenticity of existing stock or surplus inventory from authorized distributors. Buyers must confirm the specific suffix variant matches their design requirements, as pinouts and electrical characteristics may differ between package types. Due to the end-of-life status, long-term supply continuity cannot be guaranteed through standard manufacturing channels.

Selection Notes

Select this component only if the design requires a 64-pin TQFP package and supports the specific 3.135V to 3.465V supply range. Verify that the system architecture can accommodate the 1.3 GHz maximum frequency limit and the required LVDS output configuration. Ensure compatibility with the supported input formats (CML, LVDS, LVPECL) before integration. Given the obsolete status, alternative solutions with modern packaging and availability should be evaluated for new designs.

Part Context

The 854S54 series belongs to Renesas' portfolio of high-performance clock drivers and distribution buffers. These devices are engineered for applications demanding precise timing and low jitter performance. The 854S54AYI-08LFT specifically addresses needs for complex signal routing in dense electronic systems. It serves as a critical interface component for synchronizing data across high-bandwidth buses and processing units.

Replacement Considerations

As this part is obsolete, direct replacements require verification against the official Renesas EOL notification. Potential substitutes must match the 64-TQFP EP package, 1.3 GHz speed, and LVDS output specifications. Cross-reference the datasheet for functional equivalents within the same family or newer generations that offer improved availability while maintaining electrical compatibility.