9DBV0941AKLFT

Overview

The 9DBV0941AKLFT is a 9-output, 1.8V PCIe fanout clock buffer manufactured by Renesas Electronics Corporation. It operates within a frequency range of 1MHz to 200MHz and accepts HCSL differential inputs while providing LP-HCSL differential outputs. The device features integrated terminations for direct connection to 100Ω transmission lines, eliminating the need for external resistors. It includes nine output enable pins for clock management and three selectable SMBus addresses. The component is housed in a 48-lead VFQFPN package with dimensions of 6.0 x 6.0 mm and a pitch of 0.4 mm.

Feature Summary

• Nine differential outputs with integrated 100Ω terminations for direct connection to transmission lines
• Supports HCSL input and LP-HCSL output signaling standards
• Three selectable SMBus addresses for multi-device configuration
• Nine independent output enable pins for power management

Applications

• PCI Express (PCIe) Gen 1 through Gen 5 systems
• Server infrastructure clock distribution
• Storage array clocking solutions

Procurement Notes

Verify the current lifecycle status as the product may be marked as obsolete or end-of-life. Confirm that the 48-VFQFPN package dimensions and lead count match the design requirements. Ensure compatibility with the 1.8V supply voltage and check if the specific suffix 'KLFT' denotes the correct tape and reel packaging quantity of 2,500 units.

Selection Notes

Select this component when a high-density fanout solution is required for PCIe applications operating up to 200MHz. The integrated termination resistors reduce board space and component count compared to standard HCSL buffers. Verify that the system requires LP-HCSL outputs and can accommodate the 48-pin package footprint. Consider the SMBus configurability if multiple devices share the same bus segment.

Part Context

The 9DBV0941AKLFT belongs to the 9DBV05x1-9DBV07x1-9DBV09x1 family of PCIe clock buffers from Renesas. This family provides various output counts (5, 7, and 9) to suit different system complexity levels. All members share similar architectural features, including integrated terminations and SMBus control, allowing for consistent design practices across different PCIe node configurations.

Replacement Considerations

The 9DBV0941AKILF is a listed alternative variant within the same family. Verify if the 'I' suffix indicates a different temperature range or packaging option compared to the 'K' suffix. Ensure any substitute maintains the 1.8V operation and 48-VFQFPN package compatibility.