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Renesas Electronics 9ZXL0831EKILF — Discrete Semiconductors

Renesas 9ZXL0831EKILF PCIe QPI Clock Generator, 400MHz

MPN9ZXL0831EKILF
End of Life

Renesas 9ZXL0831EKILF PLL clock generator, Intel QPI / PCI Express, 1:8 HCSL outputs, 400MHz max, 3.135V–3.465V supply, -40°C to 85°C, 48-VFQFPN (6x6).

$5.84Ref. price · indicative, final on quote
Renesas Electronics 9ZXL0831EKILF datasheet (PDF)
Packaging48-VFQFN Exposed Pad
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

9ZXL0831EKILF specifications
ParameterValue
MountingSurface Mount
Supply voltage3.135V ~ 3.465V
Frequency - max400MHz
Operating temperature-40°C ~ 85°C
PLLYes
InputClock
OutputHCSL
PackageTray
Main purposeIntel QPI, PCI Express (PCIe)
Case48-VFQFN Exposed Pad
Number of circuits1
Ratio - Input:Output1:8
Differential - Input:OutputYes/Yes

Product details

PCIe / QPI clock generator with 1:8 HCSL fanout

The Renesas 9ZXL0831EKILF is a PLL-based clock generator designed to deliver eight HCSL outputs from a single reference clock, targeting Intel QuickPath Interconnect and PCI Express interfaces. It accepts a differential or single-ended input and produces eight differential HCSL outputs at up to 400 MHz, making it suitable for distributing reference clocks across multiple PCIe slots or QPI links in server and workstation chipsets.

Industrial temperature grade — wider deployment than commercial peers

There is no last-time-buy window, no NRND flag, and no announced end-of-life. For dual-sourcing or second-source qualification, the 9ZXL0851EKKLF shares the same 1:8 HCSL topology, 400 MHz ceiling, and industrial temperature range — a drop-in candidate for supply resilience, though its pinout should be verified against the board layout.

Frequently asked questions

What is the function of 9ZXL0831EKILF?

It is a PLL-based clock generator that produces eight HCSL outputs from one reference clock, purpose-built for Intel QPI and PCI Express interfaces. It operates up to 400 MHz and accepts differential or single-ended inputs.

What is a direct equivalent replacement for 9ZXL0831EKILF?

The 9ZXL0851EKKLF is the closest functional peer — same 1:8 HCSL fanout, same 400 MHz maximum, same industrial temperature range. It can serve as a second source, but verify pin compatibility against your layout before committing the BOM.

Is 9ZXL0831EKILF compatible with PCIe Gen3?

Yes. The 400 MHz maximum frequency and HCSL output format align with PCIe Gen3 reference clock requirements. The PLL provides the jitter cleaning needed for Gen3 compliance.