9LPRS436CKILFT

Overview

The Renesas 9LPRS436CKILFT is a clock synthesizer designed for ATOM CPU and PCI Express applications. It features a single circuit with a 1:14 input-to-output ratio, accepting a crystal input to generate up to 14 differential clock outputs. The device operates at a maximum frequency of 166.67MHz within a supply voltage range of 3.135V to 3.465V. Packaged in a 48-VFQFN exposed pad (6x6mm) for surface mount installation, it supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated PLL-based clock synthesizer for PCIe and ATOM CPU systems
• Generates 14 differential output clocks from a single crystal input
• Maximum operating frequency of 166.67MHz
• Surface mount 48-VFQFN package with exposed pad

Applications

• PCI Express (PCIe) clock generation
• ATOM CPU system timing
• High-speed digital interface synchronization

Procurement Notes

Verify the specific suffix 'CKI' against official Renesas documentation to confirm pinout or electrical variations compared to similar models like the CGLFT. Confirm current availability status as this component family may have end-of-life notifications. Ensure the 48-VFQFN footprint matches the target PCB design requirements.

Selection Notes

Select this component when a single crystal input must be multiplied into multiple differential clock signals for PCIe or processor buses. The 166.67MHz limit suits standard PCIe Gen1/Gen2 reference clocks. Verify that the 3.3V nominal supply aligns with the system power rails and that the -40°C to +85°C industrial temperature range meets environmental specifications.

Part Context

This part belongs to the 9LPRS436 series of clock synthesizers from Renesas. These devices are specialized for generating precise timing signals for high-speed serial interfaces. The CKILFT variant specifically denotes the 48-VFQFN package configuration, distinguishing it from TSSOP or other package options within the same functional family.

Replacement Considerations

Check for direct pin-compatible replacements within the 9LPRS436 series. Verify if alternative packages (e.g., TFSOP) offer identical electrical characteristics if form factor changes are permissible.