9LPRS436CKLF

Overview

The Renesas 9LPRS436CKLF is a dedicated clock synthesizer designed for ATOM® CPU and PCI Express (PCIe) applications. It features a single circuit with a 1:14 input-to-output ratio, generating differential clock outputs from a crystal input. 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 format, it supports surface mount installation and functions reliably across an operating temperature range of 0°C to 85°C.

Feature Summary

• Dedicated clock synthesizer optimized for ATOM® CPU and PCIe architectures
• Single circuit configuration providing a 1:14 input-to-output frequency ratio
• Crystal input interface generating differential clock outputs
• Operates at frequencies up to 166.67MHz with 3.135V–3.465V supply

Applications

• ATOM® CPU system clock generation
• PCI Express (PCIe) reference clock distribution
• Desktop and notebook motherboard timing solutions

Procurement Notes

Verify the specific package variant against the datasheet, as ordering suffixes may indicate differences in tape-and-reel quantities or lead finish. Confirm RoHS compliance status and ensure the supplier provides traceability documentation for this application-specific timing component.

Selection Notes

Select this component when designing systems requiring a fixed 1:14 frequency multiplication for ATOM® processors or PCIe lanes. Ensure the design accommodates the 48-VFQFN thermal pad requirements and strictly adheres to the specified 3.135V to 3.465V power rail constraints for stable operation.

Part Context

This part belongs to the 9LPRS436 series of specialized clock generators. It serves as a critical timing element in platforms utilizing Intel Atom processors, providing synchronized clocks for the CPU core and multiple PCIe peripheral interfaces simultaneously.

Replacement Considerations

Check for direct pin-compatible alternatives within the same 9LPRS family. Verify that any substitute maintains the 1:14 ratio and 166.67MHz maximum frequency capability required by the target ATOM® and PCIe architecture.