9FGV0631CKILFT

Overview

The Renesas 9FGV0631CKILFT is a PCIe clock generator and distribution IC designed for high-performance computing applications. It features a single circuit with a 1:6 input-to-output ratio, supporting differential LP-HCSL and LVCMOS outputs. The device accepts LVDS or crystal inputs and operates at frequencies up to 100MHz. Powered by a 1.7V to 1.9V supply, it functions within a -40°C to 85°C temperature range. Housed in a 40-VFQFPN (5x5) package with an exposed pad, this component integrates PLL functionality for precise clock generation and distribution.

Feature Summary

• Supports PCIe Common Clocked (CC), Separate Reference Independent Spread (SRIS), and Separate Reference No Spread (SRNS) architectures
• Integrates on-chip terminations for 100Ω and 85Ω systems, reducing external resistor requirements
• Features pin-selectable spread spectrum options including 0%, -0.25%, and -0.5% deviation
• Includes SMBus interface for programmable configuration and control

Applications

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

Procurement Notes

Verify the specific ordering suffix against official Renesas documentation to confirm package type and material specifications. Ensure compatibility with required voltage levels and output configurations before procurement. Cross-reference datasheet revisions to confirm current manufacturing status and any potential product change notifications affecting the component.

Selection Notes

Select this component when designing PCIe Gen 1 through Gen 6 interfaces requiring low-power clock distribution. Confirm that the 1.7V to 1.9V supply voltage aligns with the system design. Evaluate the need for integrated termination resistors to simplify PCB layout. Verify that the 100MHz maximum frequency meets the target application's timing requirements.

Part Context

This part belongs to the Renesas PhiClock family of clock generators. It is specifically engineered for PCI Express compliance, offering flexible clocking architectures. The device supports multiple spread spectrum modes to minimize EMI, making it suitable for dense electronic designs where signal integrity is critical.

Replacement Considerations

Consult official Renesas substitution guides for verified alternatives. Generic clock buffers may not support the specific PCIe architectures or integrated termination features required for direct replacement.