9EX21801AKILFT

Overview

The 9EX21801AKILFT is a differential fanout buffer manufactured by Renesas Electronics Corporation, designed for high-speed signal distribution in PCIe and QPI architectures. It features one input circuit with eighteen outputs, supporting frequency ranges from 80 MHz to 150 MHz, with a maximum operational frequency of 167 MHz. The device utilizes a 72-VFQFN exposed pad package containing 72 lead counts. It operates under Moisture Sensitivity Level (MSL) 3 standards and is supplied in tape and reel carrier types.

Feature Summary

• Provides differential clock fanout buffering for PCIe Gen 2 and QuickPath Interconnect applications
• Converts single-ended inputs to eighteen differential output signals
• Supports high-frequency operation up to 167 MHz

Applications

• PCI Express Gen 2 clock distribution networks
• Intel QuickPath Interconnect (QPI) system architecture
• High-performance server and workstation motherboard timing solutions

Procurement Notes

Verify the complete part number including suffixes such as 'AKILFT' to ensure correct package type and tape-and-reel configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure handling procedures account for MSL 3 sensitivity requirements during storage and assembly processes.

Selection Notes

Select this component when designing systems requiring extensive differential clock distribution from a single source. It is suitable for architectures demanding low skew and precise timing across multiple receiver nodes. Evaluate thermal performance within the 72-VFQFN package constraints and verify voltage compatibility with target I/O standards before finalizing the design.

Part Context

This device belongs to the 9EX series of clock buffers, specifically engineered for complex digital systems requiring robust signal integrity. It serves as a critical timing element in high-bandwidth data paths, ensuring synchronized operation across multiple components in enterprise-grade hardware platforms.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.