9FGU0831CKLF

Overview

The Renesas Electronics 9FGU0831CKLF is an obsolete 8-output PCIe clock generator designed for Gen 1, 2, and 3 applications. It operates with a 1.5 V supply and features LP-HCSL outputs to reduce power consumption and board space by eliminating series resistors. The device supports spread spectrum modulation at selectable levels (0%, -0.25%, or -0.5%) to minimize EMI. Configuration is managed via strapping pins or an SMBus interface, which is 3.3 V tolerant. It utilizes a 48-pin VFQFPN package.

Feature Summary

• 8 differential LP-HCSL outputs for PCIe Gen 1/2/3
• Typical power consumption of 50 mW
• Programmable slew rate and output amplitude
• Spread spectrum capability: 0%, -0.25%, or -0.5%

Applications

• PCI Express Gen 1/2/3 systems
• Server and storage platforms requiring low-power clocking

Part Context

This component belongs to the IDT/Renesas 1.5 V Ultra-Low-Power PCIe clock family. It was manufactured by Integrated Device Technology (IDT), which was acquired by Renesas Electronics. The part number suffix 'CKLF' denotes the commercial temperature range (0°C to +70°C) and tray packaging.

Replacement Considerations

The datasheet lists the 9ZXL0831E as a pin-to-pin alternative with improved performance and reduced external components. Other members of the 9FGU0831 family, such as the industrial grade 9FGU0831CKILF, may be considered if temperature range requirements differ.