9FGL6241AQ201LTGI8

Overview

The 9FGL6241AQ201LTGI8 is a PCI Express (PCIe) clock generator IC manufactured by Renesas Electronics. It operates at a maximum frequency of 100 MHz with one output channel. The device supports LP-HCSL and LVCMOS output signaling types and utilizes a 28-VFQFPN package with exposed pad dimensions of 4x4 mm. It features an integrated Phase-Locked Loop (PLL) and accepts HCSL, LVCMOS, or crystal inputs. The supply voltage range spans from 1.71 V to 3.465 V across multiple domains, ensuring compatibility with various logic families in PCIe master/slave and multiplexing applications.

Feature Summary

• Integrated PLL for PCIe clock generation supporting Common (CC) and Independent Reference (IR) architectures
• Dual differential outputs with LP-HCSL signaling and 100Ω output impedance
• Flexible input options including HCSL, LVCMOS, and external crystal
• SMBus-selectable spread spectrum clocking (SSC) capabilities

Applications

• Single and dual-ported NVMe SSDs
• PCIe master/slave clock distribution
• Clock multiplexing systems
• U.2 and M.2 form factor storage devices

Procurement Notes

Verify the specific suffix LTGI8 against the manufacturer's current datasheet to confirm pinout and electrical characteristics. Ensure the 28-VFQFPN package matches the target PCB footprint. Confirm moisture sensitivity level (MSL) requirements for reflow soldering profiles during assembly planning.

Selection Notes

Select this component when a 100 MHz PCIe clock source with 100Ω differential output impedance is required. Compare against the 9FGL6251 series if 85Ω output impedance or internal crystal options are preferred. Verify that the 28-pin package size fits within the mechanical constraints of the U.2 or M.2 enclosure design.

Part Context

This part belongs to the 9FGL6241/9FGL6251 family of intelligent PCIe clock buffers and generators. These devices are designed to replace discrete clock solutions, reducing board space and component count. The 9FGL6241 variant specifically targets applications requiring 100Ω output termination, distinguishing it from the 85Ω variants in the broader family.

Replacement Considerations

Direct functional replacements include other members of the 9FGL62xx series, such as the 9FGL6241AP202NDGI8, provided the package and voltage specifications align. Cross-referencing with IDT (now Renesas) legacy documentation may be necessary for equivalent pinouts.