9FGL1220AKLF

Overview

The 9FGL1220AKLF is a clock generator designed for high-performance computing applications. It features two differential outputs with LP-HCSL signaling, supporting frequencies from 25 MHz to 100 MHz. The device operates on a single 3.3V supply and includes integrated terminations for 100Ω and 85Ω systems. It supports PCIe Gen 1–6 Common Clocked (CC), Separate Reference no Spread (SRNS), and Separate Reference Independent Spread (SRIS) architectures. The component is housed in a 4mm × 4mm 24-VFQFPN package.

Feature Summary

• Supports PCIe Gen 1–6 CC, SRNS, and SRIS clocking architectures
• Integrated terminations for 100Ω and 85Ω systems
• Pin-selectable spread spectrum levels including 0%, -0.5%, and -0.25% options
• Dedicated OE# pin per output supporting PCIe CLKREQ# functionality

Applications

• Servers and High-Performance Computing
• NVMe Storage Systems
• Networking Accelerators
• Industrial Control Systems

Procurement Notes

Verify the specific suffix 'AKLF' against official Renesas documentation to confirm package type and tape/reel specifications. Ensure compatibility with required PCIe generation standards and spread spectrum configurations before procurement. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing systems requiring PCIe Gen 1 through Gen 6 compliance with flexible clocking architectures. It is suitable for applications needing integrated impedance termination to reduce external component count. Consider its 3.3V operation and LP-HCSL output signaling for compatibility with standard logic families.

Part Context

This device belongs to the 9FGL series of PCIe clock generators by Renesas Electronics. It is engineered to meet Common Clock compliance requirements for modern peripheral interconnects. The series provides solutions for server and storage markets where low jitter and architectural flexibility are critical for system stability.

Replacement Considerations

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