9FGL0851BKILF

Overview

The 9FGL0851BKILF is an 8-output 3.3V PCIe Gen 1–6 clock generator manufactured by Renesas Electronics. It supports Common Clocked (CC), Separate Reference No Spread (SRNS), and Separate Reference Independent Spread (SRIS) architectures. The device features LP-HCSL differential outputs with integrated terminations for 100Ω and 85Ω systems, eliminating external resistors. Each output includes a dedicated OE# pin for CLKREQ# support. It operates within a supply voltage range of 3.135 V to 3.465 V and functions at temperatures from -40°C to +85°C in a 48-VFQFPN package.

Feature Summary

• Supports PCIe Gen 1 through 6 Common Clocked, SRNS, and SRIS clocking architectures
• Provides 8 differential LP-HCSL outputs with integrated 100Ω and 85Ω termination resistors
• Features SMBus-selectable spread spectrum options including CC/SRIS -0.25% and CC/SRIS -0.5%
• Includes one 3.3V LVCMOS REF output with Wake-On-LAN (WOL) support

Applications

• Servers and High-Performance Computing systems
• NVMe Storage solutions
• Networking Accelerators
• Industrial Control applications

Procurement Notes

Verify the specific suffix 'BKILF' against official Renesas documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and Moisture Sensitivity Level (MSL) ratings prior to procurement. Ensure design compatibility with the 48-VFQFPN footprint and check for any Product Change Notifications (PCN) related to marking or assembly sources.

Selection Notes

Select this component when designing for PCIe Gen 1–6 interfaces requiring up to 8 synchronized clock outputs. It is suitable for systems needing integrated termination resistors to reduce board space. Verify that the required spread spectrum profile matches the available SMBus-selectable options. Ensure the input frequency requirements align with the supported crystal or LVCMOS input ranges.

Part Context

This part belongs to the 9FGL08xxD/B series of 3.3V PCIe clock generators. It shares architectural similarities with other members like the 9FGL0851DKILFT but differs in package configuration and specific manufacturing lot attributes defined by the suffix. It serves as a critical timing source for high-speed serial link interfaces in modern computing infrastructure.

Replacement Considerations

Direct replacements within the same family include the 9FGL0851DKILFT, though package differences must be evaluated. Cross-model comparisons should consider the 9FGL0451BKILF for reduced output counts. Verify pin-to-pin compatibility and electrical parameter alignment before substituting.