9ZXL0631EKILF

Overview

The 9ZXL0631EKILF is a Renesas Electronics clock buffer IC designed for Intel QPI and PCI Express applications. It functions as a DB600ZL OEM derivative with one circuit, providing a 1:6 input-to-output ratio. The device accepts HCSL differential inputs and generates LP-HCSL differential outputs. It supports frequencies up to 400MHz and operates on a supply voltage of 3.135V to 3.465V. The component is housed in a 40-VFQFPN (5x5) package with an exposed pad, suitable for surface mount installation across a temperature range of -40°C to 85°C.

Feature Summary

• Supports Intel QPI and PCIe Gen 1-5 compliance
• Features selectable PLL bandwidth to minimize jitter peaking
• Spread spectrum compatible for EMI reduction
• Fixed external feedback maintains low drift

Applications

• Servers and high-performance computing
• NVMe storage systems
• Networking accelerators
• Industrial control equipment

Procurement Notes

Verify the specific ordering suffix EKILF against official Renesas documentation to confirm package type, tape-and-reel quantity, and moisture sensitivity level. Ensure compatibility with existing PCB footprints for the 40-VFQFPN (5x5) case. Confirm that the 3.3V nominal supply voltage aligns with system power rails before procurement.

Selection Notes

Select this component when a 1:6 fanout buffer is required for PCIe or QPI interfaces. It serves as a pin-compatible upgrade to previous generations with improved phase jitter performance. Consider the 400MHz maximum frequency and LP-HCSL output signaling requirements. Verify that the fixed feedback configuration meets the zero-delay buffer specifications for the target application.

Part Context

This part belongs to the 9ZXL series of second-generation enhanced-performance differential buffers. It is derived from the DB600ZL specification and offers improved phase jitter compared to earlier derivatives. The series is optimized for critical server topologies requiring low drift and precise clock distribution.

Replacement Considerations

The 9ZXL0631E is a related variant within the same family. Verify pin compatibility and electrical parameter alignment before substitution. Check if the specific suffix differences affect packaging or thermal characteristics.