9ZXL0651EKILF

Overview

The Renesas 9ZXL0651EKILF is a zero-delay clock buffer designed for Intel QPI and PCIe applications. It features a single PLL circuit with a 1:6 input-to-output ratio, providing six differential HCSL outputs from a differential clock input. The device operates within a supply voltage range of 3.135V to 3.465V and supports maximum frequencies up to 400MHz. It is housed in a 40-VFQFN package (5x5 mm) with an exposed pad, suitable for surface-mount installation. The component functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Zero-delay buffering architecture with integrated PLL for low-jitter performance
• 1:6 fan-out ratio converting differential HCSL input to six differential HCSL outputs
• Maximum operating frequency of 400 MHz
• Supply voltage range of 3.135V to 3.465V

Applications

• Intel QuickPath Interconnect (QPI) clock distribution
• PCI Express (PCIe) system clock generation
• High-speed processor clock buffering

Procurement Notes

Verify the suffix EKILF indicates tape-and-reel packaging, distinct from tray-packaged variants like AKLF. Confirm RoHS3 compliance and MSL level 3 handling requirements during storage and assembly. Cross-reference datasheet revision history for any pinout or electrical parameter updates prior to final design integration.

Selection Notes

Select this model when a 1:6 differential HCSL fan-out is required for PCIe or QPI interfaces. Ensure the design accommodates the 40-VFQFN thermal pad soldering requirements. Compare against other 9ZXL series parts if different output counts or voltage levels are needed, noting that this specific part is optimized for 3.3V nominal systems.

Part Context

This component belongs to the Renesas 9ZXL second-generation Zero Delay Clock Buffer family. These devices are OEM derivatives of standard DB series buffers, tailored for specific high-performance computing platforms. The 9ZXL0651 variant specifically addresses the timing needs of processors requiring six synchronized clock lanes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's official obsolescence notices or cross-reference tools for qualified alternatives if supply constraints arise.