9DBU0541AKLFT

Overview

The 9DBU0541AKLFT is a PCI Express fanout clock buffer manufactured by Renesas Electronics Corporation. It operates with a single circuit providing a 1:5 input-to-output ratio, supporting maximum frequencies up to 167MHz. The device accepts differential HCSL or LVDS inputs and generates differential LP-HCSL outputs. It functions within a supply voltage range of 1.425V to 1.575V and is rated for an operating temperature between 0°C and 70°C. The component is housed in a 32-VFQFN package with a bare pad, specifically identified as a 32-VFQFPN (5x5) supplier device package.

Feature Summary

• PCIe Fanout Buffer: Designed for CPU and PCI Express applications with a 1:5 distribution ratio.
• Signal Compatibility: Accepts HCSL or LVDS differential inputs and provides LP-HCSL differential outputs.
• Low Voltage Operation: Powered by a 1.425V to 1.575V supply rail.
• Package Configuration: Available in a 32-VFQFPN (5x5) surface-mount package.

Applications

• CPU Clock Distribution
• PCI Express System Architectures

Procurement Notes

Verify the current lifecycle status before integration, as availability may be limited. Confirm that the 32-VFQFPN (5x5) package dimensions align with the target PCB footprint. Ensure the design supports the specific 1.425V to 1.575V supply requirement and the 0°C to 70°C industrial temperature range.

Selection Notes

Select this component when a 1:5 PCIe clock fanout is required with HCSL or LVDS input compatibility. It is suitable for designs constrained by the 32-pin VFQFPN form factor. Verify that the system power budget accommodates the specified 1.425V–1.575V core voltage and that the frequency requirements do not exceed 167MHz.

Part Context

This part belongs to the 9DBU0541 series from Renesas Electronics. It serves as a specialized timing solution for high-speed serial interfaces, specifically targeting the signal integrity needs of modern computing platforms requiring multiple synchronized clock outputs from a single source.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other members of the Renesas PCIe clock buffer family for potential pin-compatible or functionally similar alternatives based on specific output count and voltage requirements.