9DBL0255NLGI

Overview

The 9DBL0255NLGI is a 3.3V PCIe Gen 1–7 clock multiplexer from Renesas Electronics Corporation. It supports Common Clocked (CC), Separate Reference no Spread (SRnS), and Separate Reference Independent Spread (SRIS) architectures, accommodating PCIe Gen 1 through Gen 7 standards. The device features two differential HCSL inputs and four low-power HCSL (LP-HCSL) outputs with an operating frequency range of 1 MHz to 200 MHz. Key electrical parameters include a typical additive phase jitter of 350 fs RMS and a typical power consumption of 76 mW. It integrates selectable asynchronous or glitch-free switching modes and offers factory-programmable SMBus configurations for user-defined power-up defaults.

Feature Summary

• Supports PCIe Gen 1–7 CC, SRnS, and SRIS architectures
• Selectable asynchronous or glitch-free switching modes
• Factory programmable user-defined power-up default SMBus configuration
• Spread spectrum tolerant input design

Applications

• Servers and high-performance computing systems
• NVMe storage solutions
• Networking accelerators
• Industrial control applications

Procurement Notes

Verify the specific suffix 'NLGI' against official Renesas documentation to confirm package type and temperature rating. Ensure compatibility with system voltage requirements and signal integrity specifications before procurement. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing systems requiring PCIe Gen 1–7 clock distribution with flexible switching modes. Consider the 4mm x 4mm 24-VFQFPN package for space-constrained boards. Evaluate jitter performance against target PHY requirements and verify SMBus programming needs for power-up states.

Part Context

The 9DBL0255NLGI belongs to Renesas' full-featured PCIe clock family, specifically the 9DML04 series. It serves as a critical timing component in high-speed digital interfaces, providing reliable clock distribution for multi-lane serial links in enterprise and industrial environments.

Replacement Considerations

Check for direct pin-to-pin replacements within the 9DML04 series. Verify that alternative parts support the same PCIe generation standards and switching modes. Confirm package dimensions and thermal characteristics match the existing board layout.