9ZX21201BKLFT

Overview

The Renesas 9ZX21201BKLFT is a high-performance zero-delay buffer (Z-buffer) designed for Intel QPI and PCI Express (PCIe) applications. It features one circuit with a 1:12 input-to-output ratio, providing twelve differential HCSL outputs from a single differential clock input. The device supports maximum frequencies of 150 MHz and operates within a supply voltage range of 3.135 V to 3.465 V. Packaged in a 64-VFQFN exposed pad (64-VFQFPN 9x9 mm), it functions reliably across an operating temperature range of 0°C to 70°C.

Feature Summary

• 1:12 differential input to differential HCSL output configuration
• Integrated PLL for zero-delay buffering
• Optimized for Intel QPI and PCIe timing requirements
• Operates on 3.135 V to 3.465 V supply voltage

Applications

• Intel QuickPath Interconnect (QPI) systems
• PCI Express (PCIe) clock distribution networks
• High-performance server motherboard timing solutions

Procurement Notes

Verify the specific suffix 'BKLFT' against official Renesas documentation to confirm package revision, tape-and-reel specifications, and moisture sensitivity level. Ensure compatibility with existing board layouts regarding the 64-VFQFN footprint and thermal pad requirements before procurement.

Selection Notes

Select this component when a 1:12 fan-out buffer with integrated PLL is required for PCIe or QPI architectures. Confirm that the 150 MHz maximum frequency meets system clock requirements and that the 0°C to 70°C industrial temperature range aligns with environmental constraints.

Part Context

This part belongs to the Renesas Z-buffer family, specialized for low-jitter clock distribution in complex digital systems. It serves as a critical interface between source clocks and multiple downstream receivers in high-speed serial link topologies.

Replacement Considerations

Consult Renesas datasheets for direct pin-compatible alternatives within the 9ZX series. Verify electrical parameters such as propagation delay and output drive strength when considering cross-model substitutes.