9DBL411BKILF

Overview

The 9DBL411BKILF is a four-output lower power differential buffer manufactured by Renesas Electronics Corporation. Designed for Intel QPI and PCI Express (PCIe) applications, it accepts HCSL differential inputs and provides LP-HCSL differential outputs. The device operates at a maximum frequency of 150 MHz with a supply voltage range of 3 V to 3.6 V. It features individual output enable pins for each channel and supports spread spectrum input. The component is housed in a 20-VFQFPN package with exposed pad and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Four differential outputs with independent OE# control
• HCSL input to LP-HCSL output translation
• Supports spread spectrum clocking input
• Maximum operating frequency of 150 MHz

Applications

• Intel QuickPath Interconnect (QPI)
• PCI Express (PCIe) clock distribution

Procurement Notes

Verify the specific suffix 'KILF' against official Renesas documentation to confirm the exact package variant and tape/reel specifications. Ensure compatibility with the required operating temperature range (-40°C to +85°C) and supply voltage constraints (3V to 3.6V). Cross-reference the datasheet revision history for any recent manufacturing site or material changes.

Selection Notes

Select this component when a low-power, high-speed fanout buffer is required for PCIe Gen1-Gen3 or QPI systems. It is suitable for designs needing HCSL-to-LP-HCSL conversion without PLL functionality. Compare pinout and electrical characteristics with similar models like the 9DBL411BKLFT if different packaging options are needed.

Part Context

This part belongs to the 9DBL411 family of clock distribution ICs. Variants such as 9DBL411AKLF offer higher frequencies up to 400 MHz but may be obsolete. Other variants like 9DBL411BGILFT provide the same electrical performance in a TSSOP package. The BKILF designation specifically denotes the VFQFPN package configuration.

Replacement Considerations

The 9DBL411BKLF is listed as a manufacturer-recommended alternative. Verify pin compatibility and electrical parameters before substitution.