9DBL0851CKILF

Overview

The 9DBL0851CKILF is a zero-delay buffer (ZDB) clock distribution IC from Renesas Electronics, designed for PCI Express applications. It features one differential input and eight low-power HCSL outputs with an integrated 85Ω termination impedance. The device operates on a single 3.3V supply within a voltage range of 3.135V to 3.465V. It supports input frequencies up to 200MHz and functions in fan-out mode between 1MHz and 200MHz. The component is housed in a 48-VFQFPN package measuring 6mm x 6mm and is rated for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Zero-delay buffer architecture with 1:8 input-to-output ratio
• Integrated 85Ω output termination for PCIe compliance
• Low-power HCSL output drivers eliminating external resistors
• Supports PCIe clock architectures including Common Clock and Independent Reference

Applications

• PCIe retimer and bridge designs
• NVMe storage controllers
• Network infrastructure equipment
• Industrial control systems

Procurement Notes

Verify the specific suffix 'CKILF' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Check for Product Change Notifications regarding assembly sites or material updates. Confirm moisture sensitivity level handling requirements prior to soldering.

Selection Notes

Select this model when an 85Ω termination is required for the specific trace impedance of the target design. Ensure the system power supply remains within the 3.135V to 3.465V range. Verify that the 48-VFQFPN package dimensions fit the available PCB real estate compared to other variants in the 9DBL0x series.

Part Context

This component belongs to the 9DBL0x family of low-power PCIe clock buffers. It shares architectural similarities with the 9DBL0841 and 9DBL0641 models but differs in output count and termination resistance. The 'C' designation typically indicates a specific revision or feature set within the Renesas portfolio.

Replacement Considerations

Publicly confirmed direct substitutes are not listed in the provided documentation. Evaluate the 9DBL0841CKILFT if 100Ω termination is acceptable, though package and electrical differences exist.