9DBU0641AKLFT

Overview

The Renesas 9DBU0641AKLFT is a PCIe zero-delay fanout buffer designed for high-speed serial interface applications. It accepts an HCSL differential input and generates six LP-HCSL differential outputs. The device operates with a supply voltage range of 1.425V to 1.575V and supports maximum frequencies up to 167MHz. It features integrated termination resistors for direct connection to 100Ω transmission lines, eliminating external components. The component is housed in a 40-VFQFPN package with exposed pads, suitable for surface-mount assembly.

Feature Summary

• Six differential LP-HCSL outputs derived from a single HCSL input
• Zero-delay architecture ensures minimal propagation delay between input and output clocks
• Integrated 100Ω terminations for direct connection to PCB traces
• Operates within a 1.425V to 1.575V power supply range

Applications

• PCI Express (PCIe) clock distribution networks
• NVMe storage controller interfaces
• High-performance networking equipment
• Industrial control systems requiring precise timing

Procurement Notes

Verify the specific suffix 'AKLFT' against the manufacturer's current datasheet to confirm pinout compatibility and moisture sensitivity level (MSL). Check for product change notifications (PCNs) regarding packaging or material composition updates. Ensure design-in documentation matches the 40-VFQFPN footprint requirements.

Selection Notes

Select this component when a low-jitter, zero-delay solution is required for PCIe Gen1/2/3 architectures. Compare against the 9DBU0231AKILFT if fewer outputs are needed, or the 9DBU0941AKLFT for higher channel counts. Confirm that the 1.5V supply rail aligns with the system's power budget before finalizing the bill of materials.

Part Context

This part belongs to the 9DBU0x41 family of PCIe clock buffers from Renesas Electronics. These devices are engineered to meet the stringent jitter and skew requirements of modern peripheral component interconnect standards. The family provides scalable output configurations for various board-level topology needs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Engineering changes should be validated through official Renesas obsolescence notices or authorized distributor cross-reference tools.