9ZX21201AKLF

Overview

The Renesas 9ZX21201AKLF is a Z-Buffer clock distribution IC designed for Intel QPI and PCI Express applications. It features one differential input circuit with twelve HCSL differential outputs, providing a 1:12 fanout ratio. The device operates within a supply voltage range of 3.135V to 3.465V and supports maximum frequencies up to 150MHz. Packaged in a 64-VFQFPN (9x9mm) exposed pad format, it includes an integrated PLL for clock generation and buffering.

Feature Summary

• 12-Output HCSL Differential Buffer
• Integrated PLL for Clock Generation
• Supports Intel QPI and PCIe Standards
• 64-VFQFPN Surface Mount Package

Applications

• Intel QuickPath Interconnect (QPI) Systems
• PCI Express (PCIe) Infrastructure
• High-Speed Server Clock Distribution

Procurement Notes

Verify the specific suffix 'AKLF' against official Renesas documentation to confirm tape-and-reel packaging or temperature grade variations. Confirm moisture sensitivity level (MSL) requirements prior to assembly. Ensure ESD handling protocols are followed due to the surface-mount package type.

Selection Notes

Select this component when a 1:12 fanout buffer with integrated PLL is required for HCSL signaling. Verify that the 150MHz frequency limit meets system timing requirements. Compare power consumption and jitter specifications against alternative buffers if low-power operation is critical for the target application.

Part Context

This part belongs to the Renesas Z-Buffer family, specialized for high-speed serial interface clocking. It serves as a direct replacement for legacy buffer solutions in server platforms requiring robust clock distribution for QPI and PCIe links.

Replacement Considerations

Check pin-to-pin compatibility with existing designs using similar 64-pin VFQFPN buffers. Verify electrical parameter alignment, specifically output drive strength and supply voltage tolerance, before substituting other manufacturers' parts.