9DBU0541AKLF

Overview

The 9DBU0541AKLF is a PCI Express (PCIe) clock buffer manufactured by Renesas Electronics Corporation. It features one input and five outputs, operating at a maximum frequency of 167MHz. The device accepts HCSL differential inputs and provides LP-HCSL differential outputs. It functions within a supply voltage range of 1.425V to 1.575V and supports an industrial operating temperature range from -40°C to +85°C. The component is housed in a 32-VFQFPN package with dimensions of 5x5mm.

Feature Summary

• Five-output fanout buffer designed for PCIe Gen1-Gen3 applications
• Accepts HCSL differential input signals
• Generates LP-HCSL differential output signals
• Operates on a single 1.5V power supply

Applications

• PCI Express clock distribution
• Server and storage systems
• High-speed digital interfaces

Procurement Notes

Verify the specific suffix 'KLF' against the manufacturer's official documentation to confirm RoHS compliance and lead-free status. Confirm the package type matches the 32-VFQFPN (5x5mm) specification. Check current product lifecycle status as clock buffers may be subject to obsolescence notices.

Selection Notes

Select this component when a low-power, five-channel PCIe clock buffer is required. Ensure the design utilizes HCSL-compatible sources for input and LP-HCSL loads for outputs. Verify that the 1.5V supply rail aligns with the system's power architecture and that the thermal requirements fit within the -40°C to +85°C operational envelope.

Part Context

This part belongs to the Renesas 9DBU series of PCIe clock buffers. These devices are engineered to provide precise clock distribution for high-speed serial interfaces. The 9DBU0541 variant specifically addresses designs requiring multiple downstream clock lanes from a single source.

Replacement Considerations

Consult Renesas official cross-reference tools for verified substitutes. Potential alternatives include other members of the 9DBU family or updated generations such as the 9DBV series, provided pinouts and electrical specifications remain compatible.