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Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.

Features

  • PCIe Gen 1–6 CC-compliant
  • Supports PCIe SRIS and SRNS clocking
  • Integrated terminations for 100Ω and 85Ω systems save 4 resistors per output
  • Pin-selectable SRNS 0%, CC 0%, and CC/SRIS -0.5% spread
  • SMBus-selectable CC/SRIS -0.25% spread
  • One 3.3V LVCMOS REF output with Wake-On-LAN (WOL) support
  • Easy AC coupling to other logic families, see application note AN-891.
  • Space-saving 6mm × 6mm 48-VFQFPN

Description

The 9FGL0841/51 devices are 8-output 3.3V PCIe Gen 1–6 clock generators. Each output has a dedicated OE# pin supporting PCIe CLKREQ# functionality. Two different spread spectrum levels, in addition to spread off, are supported. The 9FGL0841/51 supports PCIe Gen 1–6 Common Clocked architectures (CC), PCIe Separate Reference no Spread (SRNS), and Separate Reference Independent Spread (SRIS) clocking architectures.

For information regarding evaluation boards and material, please contact your local sales representative.

Parameters

AttributesValue
Diff. Outputs8
App Jitter CompliancePCIe Gen1, PCIe Gen2, PCIe Gen3, PCIe Gen4, PCIe Gen5, PCIe Gen6
Outputs (#)9
Output TypeLP-HCSL, LVCMOS
Output Freq Range (MHz)25 - 25, 100 - 100
Input Freq (MHz)25 - 25
Inputs (#)1
Input TypeCrystal, LVCMOS
Core Voltage (V)3.3
Output Voltage (V)0.8V, 3.3V
Product CategoryPCI Express Clocks

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN6.0 x 6.0 x 0.9480.4

Application Block Diagrams

Genoa Server Block Diagram
AMD 4th-Gen EPYC (Genoa) Power & Timing System
Complete power and timing system for AMD Genoa with SVI3, DDR5, and PCIe Gen 5/6 support.

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