9ZXL0651AKLFT

Overview

The Renesas Electronics Corporation 9ZXL0651AKLFT is a single-circuit clock buffer integrated circuit featuring an internal Phase-Locked Loop (PLL). Designed for Intel QPI and PCI Express (PCIe) applications, it accepts a differential clock input and provides six differential HCSL outputs with a 1:6 ratio. The device operates within a supply voltage range of 3.135V to 3.465V and supports surface mount installation in a 40-VFQFPN package with exposed pads. It is rated for commercial operating temperatures between 0°C and 70°C.

Feature Summary

• Integrated PLL for zero-delay buffering
• Six differential HCSL outputs
• Supports Intel QPI and PCIe standards

Applications

• Intel QuickPath Interconnect (QPI)
• PCI Express (PCIe) systems

Procurement Notes

Verify the specific suffix 'AKLFT' against official documentation to confirm packaging details such as tray or reel configuration. Confirm that the 'A' grade designation aligns with the required 0°C to 70°C commercial temperature range rather than industrial specifications. Ensure the 40-VFQFPN footprint matches the target PCB layout.

Selection Notes

Select this component when a single differential input must drive six differential loads using HCSL signaling. The internal PLL allows for jitter attenuation suitable for high-speed serial interfaces. Verify that the system power supply remains strictly within the 3.135V to 3.465V window to ensure proper operation and signal integrity.

Part Context

This part belongs to the 9ZXL series of second-generation zero-delay clock buffers from Renesas. These devices are engineered to provide low-jitter clock distribution for high-performance processors and memory controllers, specifically targeting legacy Intel architectures requiring QPI and PCIe clocking solutions.

Replacement Considerations

Check for pin-compatible derivatives within the 9ZXL family. Verify if updated revisions offer improved electrical parameters or different packaging options while maintaining the same 40-VFQFPN outline.