9FGU0431AKILFT

Application Specific Clock/Timing Overview

The 9FGU0431AKILFT is a PCI Express (PCIe) clock generator integrated circuit manufactured by Renesas Electronics. It supports PCIe Gen 1, Gen 2, and Gen 3 standards with a maximum output frequency of 100 MHz. The device features a single input channel and four differential outputs. It operates on a supply voltage ranging from 1.425 V to 1.575 V and includes an internal Phase-Locked Loop (PLL). The component is housed in a 24-VFQFPN package with exposed pads and is rated for an operating temperature range of -40°C to +85°C.

Application Specific Clock/Timing Feature Summary

• Supports PCIe Gen 1, Gen 2, and Gen 3 interface standards
• Integrates a PLL for low-jitter clock synthesis
• Features four differential HCSL-compatible outputs
• Includes spread spectrum capability for EMI reduction

Application Specific Clock/Timing Applications

• PCI Express peripheral cards
• Server and storage backplanes
• Network infrastructure equipment
• Industrial computing systems

Application Specific Clock/Timing Procurement Notes

Verify the specific suffix 'AKILFT' against the official Renesas datasheet to confirm pinout compatibility and RoHS status. Ensure the design-in process accounts for the required external crystal oscillator specifications. Confirm that the 24-VFQFPN package dimensions align with the target PCB footprint and thermal requirements before finalizing procurement.

Application Specific Clock/Timing Selection Notes

Select this component when designing for PCIe Gen 1 through Gen 3 applications requiring four synchronized differential clocks. It is suitable for environments needing low power consumption and jitter performance within standard PCIe specifications. Consider alternative models if more than four outputs are required or if different input/output voltage levels are necessary.

Application Specific Clock/Timing Part Context

This part belongs to the Renesas 9FGU series of ultra-low-power PCIe clock generators. These devices are designed to replace legacy 3.3V or 2.5V solutions, offering improved power efficiency for modern high-speed serial interfaces. The series provides various output configurations to support diverse system architectures.

Application Specific Clock/Timing Replacement Considerations

Consult the Renesas product change notification (PCN) and cross-reference guide for verified substitutes. Potential replacements may include other members of the 9FGU family with compatible pinouts and electrical characteristics.