9FGL6241AQ202LTGI

Overview

The 9FGL6241AQ202LTGI is a PCI Express (PCIe) clock generator IC manufactured by Renesas Electronics. It operates with a single output at frequencies up to 100MHz and utilizes a 28-VFQFPN (4x4mm) surface-mount package. The device supports input clock frequencies of 25MHz or 33.33MHz and provides LP-HCSL and LVCMOS output signaling types. It functions as a PLL-based clock generator with a 3:2 input-to-output ratio, designed for applications requiring precise clock distribution in PCIe master/slave and multiplexing scenarios.

Feature Summary

• Single differential output configured for LP-HCSL signaling
• Integrated PLL for frequency synthesis from 25MHz or 33.33MHz reference inputs
• Supports Common Clock (CC), Separate Reference No Spread (SRNS), and Separate Reference Independent Spread (SRIS) architectures
• SMBus-selectable spread spectrum modulation options

Applications

• PCI Express (PCIe) clock generation for Gen 1 through Gen 6 compliant systems
• Clock multiplexing applications in server and storage infrastructure
• Master/Slave clock distribution in PCIe topology designs

Procurement Notes

Verify the specific suffix LTGI against the manufacturer's official datasheet to confirm package type and moisture sensitivity level. Ensure compatibility with system voltage requirements, specifically the 1.71V to 1.89V core supply and 2.375V to 3.465V I/O supply ranges. Confirm lead time and availability directly with authorized distributors as standard stock levels may vary.

Selection Notes

Select this component when a single high-performance PCIe clock output is required with integrated termination capabilities. Compare against the 9FGL6251 series if dual outputs or nVME-specific features like automatic clock mode switching are needed. Verify that the 28-VFQFPN package fits the PCB footprint constraints and that the thermal performance meets the -40°C to 85°C operating temperature range.

Part Context

This part belongs to the 9FGL6241 family of intelligent PCIe clock generators. It shares architectural similarities with the 9FGL6251 series but differs in output count and specific feature sets tailored for different PCIe form factors. The 9FGL6241 focuses on single-output efficiency, while the 6251 variant targets dual-ported nVME SSDs with additional buffer/generator capabilities.

Replacement Considerations

Direct replacements within the same family include the 9FGL6241AP202NDGI, which offers identical electrical specifications but utilizes a tape-and-reel packaging format instead of trays. Cross-family substitution with the 9FGL6251 series requires verification of pinout compatibility and output configuration changes.