9DBL0455NLGI

Overview

The 9DBL0455NLGI is a four-output, low-power differential buffer from the Renesas 9DBL0x family. It operates on a single 3.3V supply and supports PCIe Gen1 through Gen5 clock architectures, including Common Clock (CC) and Independent Reference (IR) modes with spread spectrum tolerance. The device features LP-HCSL outputs with integrated 85Ω termination resistors, eliminating external components. It functions in fanout mode at frequencies from 1MHz to 200MHz and includes dedicated output enable pins for each channel. The component is housed in a compact 5mm x 5mm 32-VFQFPN package.

Feature Summary

• Four LP-HCSL outputs with integrated 85Ω termination resistors
• Supports PCIe Gen1–Gen5 CC and IR clock architectures
• Spread spectrum tolerant operation
• Dedicated OE# pin for each output
• Operating frequency range of 1MHz to 200MHz

Applications

• PCIe adapter cards
• NVMe storage systems
• Networking equipment
• Accelerators
• Industrial control and embedded systems

Procurement Notes

Verify the specific suffix 'NLGI' against official Renesas documentation to confirm package type and temperature rating. Ensure compatibility with the target PCB footprint for the 32-VFQFPN package. Confirm that the 85Ω integrated termination matches the transmission line impedance requirements of the design.

Selection Notes

Select this component when a four-channel fanout buffer with integrated 85Ω termination is required for PCIe applications. It is suitable for designs needing spread spectrum support and independent output control. Compare against the 9DBL0442 variant if 100Ω termination is needed instead. Verify that the 200MHz maximum frequency meets the system clock requirements.

Part Context

This part belongs to the Renesas 9DBL0x series of low-power, high-performance fanout buffers designed for PCIe clock distribution. The series supports various output counts and termination options to accommodate different PCIe generation standards and board layout constraints.

Replacement Considerations

The 9DBL0442CKI is a direct alternative within the same family but provides integrated 100Ω termination instead of 85Ω. Ensure the load impedance matches the replacement's termination specification before substitution.