9EX21501AKLFT

Overview

The 9EX21501AKLFT is a clock distribution integrated circuit manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3.135V to 3.465V and supports a maximum frequency of 167MHz. The device features a 2:1 input-to-output ratio with differential HCSL signaling on both input and output sides. Packaged in a 64-VFQFPN (9x9) format, it is designed for surface mount installation and functions as a PCIe fanout buffer or multiplexer.

Feature Summary

• Provides differential HCSL signal distribution for high-speed interfaces
• Supports multiplexing functionality with a 2:1 input configuration
• Integrates Phase-Locked Loop (PLL) technology for clock generation

Applications

• PCI Express (PCIe) clock distribution networks
• Intel QPI system interconnect timing
• High-performance server motherboard clock routing

Procurement Notes

Verify the specific suffix 'AKLFT' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check for any product change notifications regarding pinout or electrical characteristics updates before finalizing procurement orders.

Selection Notes

Select this component when a differential HCSL output is required for PCIe or QPI applications. Ensure the design accommodates the 64-pin VFQFPN footprint and the 3.135V to 3.465V power supply constraints. Verify that the 167MHz maximum frequency meets the system bandwidth requirements and that the 2:1 mux capability aligns with the input source architecture.

Part Context

This part belongs to the 9EX series of clock distribution devices from Renesas. These components are engineered for complex computing platforms requiring precise timing signals. The series typically includes variants optimized for different interface standards and pin counts, serving as critical timing elements in data center and enterprise hardware designs.

Replacement Considerations

Consult official Renesas documentation for direct cross-reference part numbers. Verify compatibility of alternative components regarding pinout, voltage levels, and signal integrity specifications before substitution.