9DBL0252BKILFT

Overview

The 9DBL0252BKILFT is a 3.3V zero-delay buffer IC designed for PCI Express (PCIe) applications, manufactured by Renesas Electronics Corporation. It features a 1:2 input-to-output ratio with differential HCSL signaling on both input and output. The device operates within a supply voltage range of 3.135V to 3.465V and supports frequencies up to 200MHz. Packaged in a 20-VFQFPN (4x4) surface-mount format, it functions as a clock distribution component with an integrated PLL. The operating temperature range extends from -40°C to +85°C.

Feature Summary

• Zero-delay buffer architecture with integrated PLL for low skew performance
• Supports PCIe common clocked (CC) architectures with 1:2 differential fan-out
• HCSL input and LP-HCSL output signaling standards
• Operates at frequencies up to 200MHz with 3.3V nominal supply

Applications

• PCI Express (PCIe) clock distribution systems
• Server and storage system clocking
• High-speed digital interface timing synchronization

Procurement Notes

Verify the current manufacturing status before procurement, as this component may be discontinued or subject to product change notices. Confirm that the 20-VFQFPN package dimensions match the target PCB footprint. Ensure compatibility with 3.3V logic levels and HCSL/LP-HCSL signal requirements for the specific design implementation.

Selection Notes

Select this component when a low-skew, zero-delay buffer is required for PCIe Gen1/Gen2 reference clocks. It is suitable for designs needing a 1:2 differential split with minimal propagation delay. Compare against other members of the 9DBL02xx family if different output counts are needed. Verify that the 200MHz maximum frequency meets the system's clock speed requirements.

Part Context

This part belongs to the Renesas 9DBL series of PCIe clock buffers and generators. It is functionally related to other variants such as the 9DBL0252 and 9DBL0841, differing primarily in output count and package configuration. The 'BK' suffix typically denotes specific packaging or revision details within the Renesas portfolio.

Replacement Considerations

Direct substitutes should be sought within the Renesas 9DBL series, such as the 9DBL0252 without the suffix if available, or other 1:2 zero-delay buffers from the same family. Cross-manufacturer replacements require careful verification of pinout, electrical characteristics, and PCIe compliance.