9ZXL0451EKILF

Overview

The 9ZXL0451EKILF is a second-generation enhanced performance Zero-Delay/Fanout Buffer (ZDB/FOB) from Renesas Electronics. It provides four Low-power HCSL (LP-HCSL) outputs and meets PCIe Gen1–5 jitter specifications. The device supports DB800ZL derivative applications with integrated output terminations to eliminate external resistors. Key electrical parameters include a supply voltage range of 3.135 V to 3.465 V, a maximum input frequency of 400 MHz, and a maximum propagation delay of 3 ns. It operates within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Four LP-HCSL differential outputs with integrated series termination resistors
• Supports PCIe CLKREQ# function via dedicated OE# pins for each output
• Selectable PLL bandwidths to minimize jitter peaking in cascaded topologies
• Spread-spectrum compatible operation up to 400 MHz

Applications

• Servers and High-performance Computing
• nVME Storage systems
• Networking equipment
• Hardware Accelerators
• Industrial Control systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and moisture sensitivity level. Ensure the component matches the required RoHS compliance status. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Selection Notes

Select this model for designs requiring exactly four differential clock outputs with low power consumption. Verify that the 3.3V nominal supply voltage aligns with the system architecture. Ensure the PCB layout accommodates the 32-pin VFQFPN package dimensions for proper thermal dissipation and signal integrity.

Part Context

This component belongs to the 9ZXL04x1E family of zero-delay buffers designed for CPU and PCIe applications. It serves as a pin-compatible upgrade to previous generations, offering improved phase jitter performance while maintaining compatibility with Intel DB800ZL specifications.

Replacement Considerations

Consult the official datasheet for direct pin-compatible upgrades within the 9ZXLxx1E family. Verify that any substitute part maintains the same output count, signaling standard, and package footprint.