9DBV0631BKLFT

Overview

The 9DBV0631BKLFT is a 6-output, 1.8V PCIe fanout clock buffer manufactured by Renesas Electronics Corporation. It belongs to the company's full-featured PCIe timing product family. The device features six differential outputs with integrated terminations for direct connection to 100Ω transmission lines. It includes six output enable pins for flexible clock management and supports three selectable SMBus addresses for configuration. The component operates within a standard commercial temperature range of 0°C to 70°C.

Feature Summary

• Six differential LP-HCSL outputs with integrated 100Ω terminations
• Six independent output enable (OE) pins for power management
• Three selectable SMBus addresses for system integration
• Spread Spectrum compatible input for EMI reduction

Applications

• PCIe Gen 1–5 zero-delay/fanout buffering
• High-speed server and storage backplane clock distribution
• Telecommunications infrastructure timing systems

Procurement Notes

Verify the specific suffix 'BKLFT' against official Renesas documentation to confirm package dimensions and tape-and-reel specifications. Confirm the operating temperature range is limited to the commercial grade (0°C to 70°C). Ensure compatibility with legacy 3.3V tolerant SMBus controllers if used in mixed-voltage environments.

Selection Notes

Select this component when a 1.8V supply voltage is required for PCIe clock distribution. The integrated terminations simplify board layout by eliminating external resistors. Verify that the six-output count meets the system requirements, as other family members offer different output counts such as two or nine outputs.

Part Context

This part is part of the broader 9DBV0xxx family of PCIe clock buffers. Renesas has announced that its timing product portfolio is being acquired by SiTime. Product support, datasheets, and ordering remain available through Renesas.com until the end of 2026, after which the transition to SiTime will be complete.

Replacement Considerations

Direct replacements within the same family include the 9DBV05x1 and 9DBV07x1 series. These parts share similar architectural features but differ in the number of outputs (5 or 7 respectively). Verify pin-to-pin compatibility and output enable configurations before substitution.