9SQL4954CNLGI

Overview

The Renesas 9SQL4954CNLGI is a single-circuit clock generator designed for PCI Express applications. It features a maximum operating frequency of 25MHz and accepts a clock input, producing two differential clock outputs with a 1:2 ratio. The device operates on a supply voltage ranging from 3.135V to 3.465V and supports an integrated PLL. It is housed in a 24-VFQFPN package with exposed pads (4x4 mm) and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Designed specifically for PCI Express clock generation
• Integrates a Phase-Locked Loop (PLL)
• Converts single-ended clock input to two differential outputs
• Operates within a 3.135V to 3.465V supply range

Applications

• PCI Express system clock distribution
• Server and workstation motherboard timing
• Industrial computing platforms requiring PCIe compliance

Procurement Notes

Verify the specific ordering suffix CNLGI against official datasheets to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the supplier provides valid traceability documentation for this component.

Selection Notes

Select this component when a dedicated PCIe clock generator with a 1:2 output ratio is required. Ensure the design accommodates the 3.135V to 3.465V supply voltage constraints. Verify that the 24-VFQFPN footprint matches the PCB layout and that the 25MHz maximum frequency meets the target interface speed requirements.

Part Context

This part belongs to the VersaClock family of timing devices from Renesas Electronics. It serves as a specialized solution for generating stable clock signals for high-speed serial interfaces like PCIe, differing from general-purpose oscillators by its programmable nature and specific interface compatibility.

Replacement Considerations

Consult the manufacturer's cross-reference guide for verified pin-to-pin or functional replacements. Ensure any substitute maintains the same 24-VFQFPN package dimensions and electrical characteristics.