9FGU0241AKLFT

Overview

The 9FGU0241AKLFT is a clock generator manufactured by Renesas Electronics Corporation, designed for PCI Express (PCIe) applications. It supports PCIe Gen 1 through Gen 3 architectures, including Common Clocked (CC), Separate Reference Independent Spread (SRIS), and Separate Reference No Spread (SRNS). The device features two differential outputs with LP-HCSL signaling and operates at frequencies ranging from 25 MHz to 100 MHz. It utilizes a single crystal input and integrates terminations for 100Ω systems. The component is housed in a space-saving 24-VFQFPN package measuring 4mm x 4mm with exposed pads.

Feature Summary

• Supports PCIe Gen 1–6 Common Clocked (CC), SRIS, and SRNS clocking architectures
• Two differential LP-HCSL outputs with integrated 100Ω termination resistors
• Pin-selectable spread spectrum options: 0%, -0.5%, or -0.25% deviation
• Includes SMBus interface for configuration and control

Applications

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

Procurement Notes

Verify the specific suffix 'AKLFT' against the official Renesas datasheet to confirm packaging type and lead-free status. Check current product lifecycle status as clock generators may undergo obsolescence notices. Ensure compatibility with required PCIe generation standards before procurement.

Selection Notes

Select this component when designing for PCIe Gen 1-3 interfaces requiring low jitter and integrated output terminations. The 4x4mm VFQFPN package is suitable for dense board layouts. Confirm that the 3.3V supply voltage aligns with the system power architecture and that the 25-100MHz frequency range meets the target clock requirements.

Part Context

This part belongs to the 9FGU series of PCIe clock generators from Renesas. It is distinct from the 9FGP series used for Intel CPU servers and the 9FGV series for general distribution. The 9FGU series specifically targets high-speed serial link clocking with flexible spread spectrum capabilities for EMI reduction.

Replacement Considerations

Consult the Renesas cross-reference guide for direct pin-compatible substitutes. Verify if newer generations like the 9FGL series offer backward compatibility for PCIe Gen 1-3 designs while providing improved performance metrics.