9ZXL1550BKLF/W

Overview

The Renesas Electronics Corporation 9ZXL1550BKLF/W is a high-speed clock buffer designed for Intel QPI and PCI Express (PCIe) fanout applications. It features 15 LP-HCSL outputs with an 85-ohm output impedance, eliminating the need for external termination resistors. The device operates within a supply voltage range of 3.135 V to 3.465 V and supports input frequencies up to 150 MHz. It is housed in a compact 64-VFQFPN package measuring 9x9 mm, suitable for surface mount installation.

Feature Summary

• Provides 15 differential outputs utilizing Low-Power HCSL signaling with integrated 85-ohm termination
• Supports zero-delay buffering functionality optimized for critical QPI and UPI applications
• Accepts spread spectrum input clocks to facilitate EMI reduction in system designs

Applications

• Intel QuickPath Interconnect (QPI) fanout distribution
• PCI Express (PCIe) clock generation and distribution
• Ultra Path Interconnect (UPI) synchronization

Procurement Notes

Verify the specific suffix configuration when ordering, as variants such as the standard 9ZXL1550BKLF may differ in operational specifications or temperature ranges compared to the /W variant. Confirm that the required package type matches the 64-VFQFPN exposed pad footprint. Ensure compatibility with the target system's voltage requirements and signal integrity standards before finalizing procurement.

Selection Notes

Select this component when designing systems requiring a single differential input to drive fifteen low-power HCSL loads without external termination components. It is appropriate for applications needing spread spectrum clocking support to minimize electromagnetic interference. Consider the 9x9 mm package size for board space constraints and verify that the maximum input frequency of 150 MHz meets the source clock requirements.

Part Context

This part belongs to the 9ZXL1550 series of clock buffers manufactured by Renesas Electronics. It serves as a derivative of the DB1500Z family, tailored specifically for high-performance computing architectures. The series focuses on providing reliable clock distribution for processor interconnects, ensuring signal integrity across multiple downstream devices in complex electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.