9DB801CFLF

Overview

The Renesas Electronics Corporation 9DB801CFLF is a PCI Express zero-delay buffer IC designed for high-speed clock distribution. It features one differential input and eight differential outputs, operating at frequencies up to 400 MHz. The device supports HCSL input signaling and provides HCSL or LVDS output options. It functions within a supply voltage range of 3.135 V to 3.465 V and operates in temperatures from 0°C to 70°C. Packaged in a 48-SSOP format, this component ensures precise timing alignment for PCIe applications.

Feature Summary

• Provides zero-delay buffering capability for PCI Express clock signals
• Converts single-ended or differential inputs to eight differential outputs
• Supports flexible output signaling standards including HCSL and LVDS
• Operates with low skew and jitter characteristics suitable for high-speed interfaces

Applications

• PCI Express Gen1 clock distribution networks
• Server and workstation motherboard clocking systems
• High-performance computing hardware timing synchronization
• Industrial equipment requiring precise PCIe clock generation

Procurement Notes

Verify the exact suffix configuration against current manufacturer documentation, as Renesas frequently updates part numbering conventions. Confirm availability status directly with authorized distributors, as this specific variant may be subject to discontinuation notices or lifecycle changes. Ensure compatibility with existing PCB footprints and signal integrity requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring a single source to drive multiple PCIe endpoints with minimal phase error. Consider the output signaling preference (HCSL vs. LVDS) based on downstream receiver requirements. Evaluate thermal management needs given the power consumption profile and ensure the 48-pin SSOP package fits the mechanical constraints of the target enclosure design.

Part Context

This component belongs to the Renesas 9DB801 family of differential clock buffers specifically engineered for PCI Express compliance. It serves as a critical timing element in complex digital systems where clock skew must be minimized across multiple branches. The family typically includes variants with different packaging or output configurations to address diverse board layout and electrical interface needs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Consult official Renesas cross-reference tools or contact technical support for validated alternatives if this specific part number is unavailable.