9DBU0641AKILF

Overview

The Renesas 9DBU0641AKILF is a PCIe clock buffer designed for zero-delay fanout applications. It operates with a single differential input and provides six low-power HCSL (LP-HCSL) outputs. The device supports input frequencies up to 200 MHz and functions within a supply voltage range of 3.135 V to 3.465 V. Packaged in a 32-VFQFPN (5x5 mm) format, it integrates termination resistors for direct connection to 100-ohm transmission lines. The component is rated for commercial temperature operation from -40°C to +85°C.

Feature Summary

• Six differential LP-HCSL outputs for PCIe signal distribution
• Zero-delay architecture with integrated 100-ohm terminations
• Supports spread spectrum input signals
• Operates on a 3.3V supply with typical power consumption of 149 mW

Applications

• PCIe Riser Cards
• NVMe Storage Systems
• Networking Accelerators
• Industrial Control and Embedded Systems

Procurement Notes

Verify the specific suffix 'AKILF' against the manufacturer's current datasheet to confirm package dimensions and moisture sensitivity level. Ensure compatibility with 3.3V logic levels and LP-HCSL output requirements for the target PCIe interface design.

Selection Notes

Select this component when a single reference clock must be distributed to six downstream PCIe endpoints with minimal skew. Confirm that the system requires LP-HCSL signaling rather than LVDS or CML. Verify that the available board space accommodates the 32-pin VFQFPN package.

Part Context

This part belongs to the Renesas 9DBU series of PCIe clock buffers. It serves as a fanout solution for systems requiring multiple synchronized clocks derived from a single source, ensuring signal integrity across high-speed PCIe lanes without introducing additional phase delay relative to the input.

Replacement Considerations

Direct pin-to-pin replacements within the same family include the 9DBU0541AKILF (5 outputs) or 9DBU0831AKILF (8 outputs), provided the output count matches the design requirements. Cross-family substitutes may require schematic adjustments due to differing output types or voltage levels.