9DBV0431AKILFT

Overview

The 9DBV0431AKILFT is a clock buffer, driver, and multiplexer IC designed for Ethernet and PCI Express (PCIe) applications. Manufactured by Renesas Electronics, it operates with a maximum frequency of 137.5MHz and provides one output channel. The device features HCSL input and output signaling with differential input/output capabilities. It functions within a supply voltage range of 1.7V to 1.9V and supports an operating temperature range from -40°C to 85°C. The component is housed in a 32-QFN (5x5) package with exposed pad for surface mount installation.

Feature Summary

• Supports Ethernet and PCIe Gen 1/2/3 clocking architectures
• HCSL differential input and output signaling
• Maximum operating frequency of 137.5MHz
• Integrated PLL for clock generation

Applications

• PCI Express (PCIe) clock distribution
• Ethernet network infrastructure equipment
• High-speed digital system clock buffering

Procurement Notes

Verify the specific suffix 'KILFT' against official Renesas documentation to confirm packaging type and material compliance. Ensure the 32-QFN footprint matches the target PCB design. Confirm that the 1.7V-1.9V supply voltage requirement aligns with the system power rails before procurement.

Selection Notes

Select this component when a low-voltage (1.8V nominal) HCSL clock buffer with integrated PLL is required for PCIe or Ethernet interfaces. Compare against the 9FGV0431 series if higher output counts or different voltage levels are needed. Verify that the 1:4 input-to-output ratio meets the fan-out requirements of the destination devices.

Part Context

This part belongs to the 9DBV04xx family of PCIe clock generators and buffers. It shares functional similarities with the 9DBV0641 and 9DBV0531 series but differs in output count and specific interface configurations. The 'AKI' suffix typically denotes specific packaging and tape/reel options within the Renesas portfolio.

Replacement Considerations

Direct pin-compatible replacements may include other members of the 9DBV04xx family, such as the 9DBV0431AKLF, provided the packaging and electrical specifications match exactly. Cross-referencing with the 9FGV0431 series requires verification of voltage and output configuration compatibility.