9ZXL0831EKKLF

Overview

The Renesas 9ZXL0831EKKLF is an 8-output low-power clock buffer designed for Intel DB800ZL specifications. It features a single HCSL differential input and eight LP-HCSL differential outputs, supporting frequencies up to 400 MHz. The device operates on a 3.135V to 3.465V supply within a -40°C to +85°C temperature range. Packaged in a 48-VFQFPN (6x6 mm) surface-mount format, it utilizes a fixed feedback path for zero-delay buffering. Key electrical parameters include a maximum propagation delay of 3 ns and a typical power consumption of 304 mW.

Feature Summary

• Complies with Intel DB800ZL specification for PCIe Gen 1/2/3 and QPI/UPI applications
• Fixed external feedback loop ensures 0 ps input-to-output delay variation
• Eight independent Output Enable (OE#) pins allow hardware control of each output
• Supports spread spectrum input tracking for EMI reduction

Applications

• PCI Express Gen 1, 2, and 3 systems
• Intel QuickPath Interconnect (QPI) and Ultra Path Interconnect (UPI)
• Servers and high-performance computing platforms
• NVMe storage controllers

Procurement Notes

Verify the suffix 'EKILF' against datasheet requirements to confirm RoHS compliance and lead-free status. Confirm package type is 48-VFQFPN with exposed pad. Check manufacturing date codes against PCN documents for assembly site changes or labeling updates. Ensure inventory handling accounts for MSL Level 3 moisture sensitivity.

Selection Notes

Select this component when upgrading from the 9ZXL0831A due to improved phase jitter performance. Use for designs requiring pin-compatible replacement with enhanced DB800ZL compliance. Verify that the 400 MHz maximum input frequency meets system clock requirements. Ensure board layout supports the 6x6 mm VFQFPN footprint and thermal dissipation needs.

Part Context

This part belongs to the 9ZXL0831 family of low-power clock buffers. It serves as a second-generation enhancement over the 9ZXL0831A, offering better jitter performance while maintaining pin compatibility. The series is optimized for processor clock distribution in demanding server and networking environments.

Replacement Considerations

The 9ZXL0831E is a direct pin-compatible upgrade with improved performance. The 9ZXL0851E is another pin-compatible alternative in the same family. Verify specific suffix differences for packaging variations between tray and tape-and-reel options.