9DBU0531AKLFT

Overview

The 9DBU0531AKLFT is a clock buffer manufactured by Renesas Electronics, belonging to the 9DBU series. It functions as a zero-delay fanout buffer designed for PCI Express (PCIe) Gen1, Gen2, and Gen3 applications. The device operates with a single 1.5V supply voltage and provides five output channels. It supports HCSL input signals and generates LP-HCSL output signals. The component is housed in a 32-VFQFPN package with exposed pads, suitable for surface-mount technology. It is RoHS compliant and intended for high-speed digital timing distribution.

Feature Summary

• Five-output zero-delay clock buffer optimized for PCIe Gen1-Gen3
• Operates on a single 1.5V power supply
• Converts HCSL inputs to LP-HCSL outputs
• Available in a 32-VFQFPN (5x5 mm) surface-mount package

Applications

• PCI Express (PCIe) Gen1, Gen2, and Gen3 clock distribution
• High-performance computing systems requiring low-skew timing
• Data communications infrastructure equipment

Procurement Notes

Verify the complete part number including the suffix 'AKLFT' to ensure correct packaging and material specifications. Confirm moisture sensitivity level handling requirements during storage and assembly. Check for recent Product Change Notifications (PCNs) from Renesas regarding manufacturing site or material updates. Ensure compatibility with the target board's 1.5V power rail and thermal management capabilities for the VFQFPN package.

Selection Notes

Select this component when a five-channel fanout solution is required for PCIe interfaces operating at 1.5V. Compare against other members of the 9DBU family, such as the 9DBU0231 (2-output) or 9DBU0441 (4-output), based on the specific number of load points needed. Ensure the design utilizes HCSL-compatible sources and LP-HCSL loads to match the device's electrical characteristics.

Part Context

This part belongs to the Renesas 9DBU series of PCIe clock buffers. It complements other variants like the 9DBU0231 and 9DBU0441 by offering a five-output configuration. The series is designed to replace legacy clock generators with integrated buffering solutions that support modern high-speed serial interface standards.