9DBU0741AKILF

Overview

The 9DBU0741AKILF is a seven-output, 1.5V PCIe fanout clock buffer manufactured by Renesas Electronics Corporation. Operating within the IDT Ultra-Low-Power (ULP) PCIe family, it supports frequencies from 1 MHz to 167 MHz. The device features integrated terminations for direct connection to 100-ohm transmission lines, eliminating the need for external resistors. It utilizes HCSL differential input and LP-HCSL differential output signaling. Key capabilities include programmable slew rate and output amplitude for each channel, individual output enables, and spread spectrum tolerance. The component is housed in a space-saving 5x5 mm 40-pin VFQFPN package.

Feature Summary

• Seven outputs with integrated 100-ohm terminations, saving approximately 28 external resistors
• Programmable slew rate and output amplitude per channel for line length and environment tuning
• Individual OE# pins for each output to support dynamic power management
• Spread spectrum tolerant design to assist in EMI reduction

Applications

• PCI Express Gen 1 through Gen 3 clock distribution
• High-density server and storage backplane systems
• Network infrastructure equipment requiring low EMI solutions

Procurement Notes

Verify the current lifecycle status of the 9DBU0741AKILF, as Renesas timing products have been acquired by SiTime. Confirm whether the specific suffix 'AKILF' denotes the correct packaging and temperature grade required for the design. Ensure that the source document explicitly lists this part number as available or active before proceeding with procurement planning.

Selection Notes

Select the 9DBU0741AKILF when a seven-channel fanout solution is required for 1.5V PCIe applications. This component is suitable for designs needing independent control over output slew rates and amplitudes to optimize signal integrity across varying trace lengths. The integrated termination simplifies PCB layout compared to standard HCSL buffers. Verify that the operating frequency range of 1 MHz to 167 MHz aligns with the system clock requirements.

Part Context

The 9DBU0741 belongs to the IDT 1.5V Ultra-Low-Power PCIe family, which was integrated into the Renesas portfolio. The product tree indicates that Renesas timing products are transitioning to SiTime. While the datasheet references IDT heritage, the manufacturer is listed as Renesas Electronics Corporation. The 'AKILF' suffix typically specifies the tape and reel packaging and commercial temperature range.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the available documentation. Due to the acquisition of Renesas timing products by SiTime, users should consult SiTime.com for potential cross-reference options or updated product offerings replacing the IDT/Renesas ULP PCIe buffer family.