9DBL0651BKILFT

Overview

The 9DBL0651BKILFT is a clock buffer manufactured by Renesas Electronics Corporation, designed for Intel QPI and PCI Express (PCIe) applications. It features a single circuit with one differential input and six differential outputs, operating at a maximum frequency of 400MHz. The device utilizes HCSL output signaling and accepts HCSL inputs. It functions without an internal PLL and operates within a supply voltage range of 3V to 3.6V. The component is housed in a 40-VFQFPN (4x4) package with exposed pad and supports surface mount installation across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Six differential outputs with 1:6 input-to-output ratio
• Maximum operating frequency of 400MHz
• HCSL input/output signaling types
• No internal PLL; acts as a distribution buffer

Applications

• Intel QuickPath Interconnect (QPI)
• PCI Express (PCIe) systems
• High-speed server and storage infrastructure

Procurement Notes

Verify the exact part number against manufacturer documentation, as standard listings often reference the 9DBL411 or 9ZXL0651 series. Confirm package dimensions and pinout compatibility during sourcing. Check for RoHS compliance status and moisture sensitivity level requirements specific to the manufacturing batch before procurement.

Selection Notes

Select this component when a low-power PCIe/QPI clock distribution solution with six outputs is required. Ensure the system design accommodates the 3V to 3.6V supply voltage and HCSL signal levels. Verify that the 400MHz maximum frequency meets the target bus speed requirements for the connected peripherals.

Part Context

This component belongs to the 9DBL series of low-power clock buffers from Renesas. It serves as a fan-out buffer specifically optimized for high-speed serial interfaces like PCIe and QPI, providing signal integrity and timing alignment for multiple downstream receivers in complex digital systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Consult the official Renesas cross-reference guide for compatible alternatives within the 9DBL family or equivalent PCIe clock buffers.