9FGU0241AKILFT

Overview

The 9FGU0241AKILFT is a clock generator from the Renesas 9FGU series, designed for PCI Express (PCIe) applications. It features a single PLL with a 1:3 input-to-output ratio, generating three differential outputs. The device operates on a supply voltage of 1.425V to 1.575V and supports maximum output frequencies up to 100 MHz. Output signaling utilizes LP-HCSL and LVCMOS types. It accepts LVDS or crystal inputs and is housed in a 24-VFQFPN package with a bare pad. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports PCIe SRIS and SRNS clocking architectures
• Integrated terminations for 100Ω and 85Ω systems
• Pin-selectable spread spectrum levels (0%, -0.5%, -0.25%)
• Dedicated OE# pin supporting CLKREQ# functionality

Applications

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

Procurement Notes

Verify the specific suffix 'AKILFT' against the official datasheet to confirm package type and tape-and-reel packaging details. Ensure compatibility with the required 1.5V supply voltage and check for moisture sensitivity level requirements during storage and handling. Confirm that the 24-VFQFPN footprint matches the PCB design constraints.

Selection Notes

Select this component when designing for PCIe Gen 1 through 3 architectures requiring low jitter and flexible clocking modes. Compare against the 9FGV0241AKILF if a 1.8V supply is preferred, or the 9DBU0441AKILFT if a clock buffer topology is needed instead of generation. Verify that the 100 MHz maximum frequency meets the system timing requirements.

Part Context

This part belongs to the Renesas 9FGU/9FGV family of low-voltage PCIe clock generators. These devices are engineered to replace discrete clock solutions, reducing board space by integrating terminations and spread spectrum capabilities. The 9FGU variant specifically targets the 1.5V domain common in many PCIe reference designs.

Replacement Considerations

The 9FGV0241AKILF is a functional alternative within the same family but operates at 1.8V. For buffered clock applications, the 9DBU0441AKILFT serves as a different topology option. Direct pin-for-pin replacement requires verifying the supply voltage tolerance and output drive strength specifications.