9FGL0831AKILFT

Overview

The 9FGL0831AKILFT is a clock buffer manufactured by Renesas Electronics, designed for high-speed interface applications including PCI Express (PCIe) and QuickPath Interconnect (QPI). It features eight low-power HCSL-compatible differential outputs and accepts a single HCSL differential input. The device operates within a supply voltage range of 3.135V to 3.465V and supports frequencies up to 150MHz. Packaged in a 48-pin VFQFPN with exposed pad, it provides fixed feedback paths for zero-delay buffering and spread spectrum compatibility to minimize electromagnetic interference.

Feature Summary

• Eight LP-HCSL differential output pairs for PCIe Gen 1/2/3 and QPI/UPI applications
• Fixed feedback path ensuring 0ps input-to-output delay variation
• Spread spectrum compatible with selectable PLL bandwidth to minimize jitter peaking
• Individual hardware control via eight OE# pins for each output

Applications

• PCI Express Gen 1, Gen 2, and Gen 3 system designs
• Intel QuickPath Interconnect (QPI) and Ultra Path Interconnect (UPI) architectures
• High-performance server and storage backplane clock distribution

Procurement Notes

Verify the specific suffix 'AKILFT' against official Renesas documentation to confirm package type, tape-and-reel quantity, and RoHS compliance status. Ensure the ordering code matches the required lead frame finish and moisture sensitivity level before procurement.

Selection Notes

Select this component when an eight-channel differential buffer with low power consumption and zero-delay characteristics is required. It serves as a direct replacement for legacy devices like the DB800ZL, offering reduced external component count while maintaining signal integrity for high-speed serial links.

Part Context

This part belongs to the 9FGL series of low-power clock buffers from Renesas. It is engineered to meet Intel's DB800ZL specification requirements, providing a pin-compatible solution for designers upgrading systems that require robust clock distribution for multiple downstream receivers without introducing additional phase noise.

Replacement Considerations

The 9ZXL0831E and 9ZXL0851E are documented as pin-to-pin alternatives within the same family, offering improved performance metrics and reduced external component requirements for similar PCIe and QPI applications.