9ZXL0851EKILF

Overview

The Renesas 9ZXL0851EKILF is a clock buffer IC designed for Intel QPI and PCI Express (PCIe) applications. It features one circuit with an input-to-output ratio of 1:8, supporting maximum frequencies up to 400MHz. The device operates on a supply voltage range of 3.135V to 3.465V and functions within a temperature range of -40°C to 85°C. It utilizes HCSL output signaling and is housed in a 48-VFQFPN package measuring 6x6 mm.

Feature Summary

• Supports Intel QPI and PCIe Gen1-5 clock distribution
• 1:8 fanout ratio with differential input/output capability
• HCSL output signaling for low power consumption
• Operates at frequencies up to 400MHz

Applications

• Intel QuickPath Interconnect (QPI) systems
• PCI Express (PCIe) Gen1 through Gen5 platforms
• Server and workstation motherboard clock distribution

Procurement Notes

Verify the specific suffix 'K' against official Renesas documentation to confirm pinout or electrical variations relative to other variants in the 9ZXL0851 family. Confirm RoHS compliance status via the manufacturer's current datasheet revision. Check for any Product Change Notifications (PCNs) affecting assembly sites or materials before procurement.

Selection Notes

Select this component when a single-ended HCSL input must be distributed to eight differential HCSL outputs for high-speed serial links. Ensure the design supports the required 3.135V to 3.465V supply voltage. Verify that the 48-VFQFPN package size fits the PCB layout constraints and thermal requirements for the target operating environment.

Part Context

This part belongs to the 9ZXL0851E family of zero-delay/fanout clock buffers. It serves as a derivative for the DB800ZL platform, optimized for Intel processor interconnects. Other family members include variants with different output counts such as the 9ZXL0451 (4-output) and 9ZXL1231 (12-output).

Replacement Considerations

Direct substitutes within the same family include the 9ZXL0851EKKLFT, which shares similar specifications but may differ in packaging or minor electrical characteristics. Verify compatibility with existing board layouts and signal integrity requirements before substitution.