9DBU0741AKILF Equivalent & Substitute Parts

Part Overview

The 9DBU0741AKILF is a PCI Express (PCIe) clock buffer IC manufactured by Renesas Electronics Corporation, designed to distribute a single differential input signal to seven differential outputs. This device operates at a maximum frequency of 167MHz with a supply voltage range of 1.425V to 1.575V and is housed in a 40-VFQFN surface mount package. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

9DBU0741AKILF

Renesas Electronics CorporationIn Stock: 7559DBU0741AKILF Datasheet

Current PartRFQ

RC19008A100GND#BB0

Renesas Electronics CorporationIn Stock: 988RC19008A100GND#BB0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 9DBU0741AKILF is determined by the following critical parameters:

• Package Compatibility: Both the main part and substitute must use the 40-VFQFN Exposed Pad surface mount package to ensure PCB layout compatibility without redesign.
• Differential Signal Support: Input and output must both support differential signaling (HCSL/LVDS input, LP-HCSL output) to maintain signal integrity in PCIe applications.
• Single Circuit Configuration: The substitute must contain one circuit to match the functional architecture of the original device.
• PCI Express Application: The substitute must be designated for PCIe clock distribution to ensure compliance with PCIe timing and signal specifications.
• Compliance Standards: RoHS3 compliance and MSL rating must be maintained for manufacturing and environmental requirements.

The RC19008A100GND#BB0 qualifies as a manufacturer-recommended substitute based on these parameters, despite differences in frequency rating, supply voltage, and output count.

Parameter Comparison

Engineering Selection Recommendations

The RC19008A100GND#BB0 is designated as the manufacturer-recommended substitute for the obsolete 9DBU0741AKILF. Both devices maintain identical package geometry (40-VFQFN Exposed Pad), differential signal architecture, and compliance certifications (ROHS3, MSL 3). The substitute is currently in active production status, ensuring long-term availability and supply chain continuity.

Selection of the RC19008A100GND#BB0 requires system-level evaluation of the following differences: the substitute operates at a higher maximum frequency (400MHz versus 167MHz), supports an additional output channel (1:8 ratio versus 1:7), and requires a different supply voltage range (2.97V–3.63V versus 1.425V–1.575V). These differences necessitate verification of power supply compatibility, PCB layout accommodation for the additional output, and confirmation that the higher frequency specification does not introduce signal integrity issues in the target application.

Frequently Asked Questions (FAQ)

Q: Can the RC19008A100GND#BB0 be used as a direct pin-for-pin replacement for the 9DBU0741AKILF?

A: Both devices use the 40-VFQFN Exposed Pad package with identical physical dimensions. However, the RC19008A100GND#BB0 provides eight outputs compared to seven outputs on the 9DBU0741AKILF. Pin assignment verification is required to confirm compatibility with existing PCB layouts.

Q: What are the primary differences between these two parts?

A: The RC19008A100GND#BB0 differs in three key areas: maximum operating frequency (400MHz versus 167MHz), output count (1:8 versus 1:7 ratio), and supply voltage requirement (2.97V–3.63V versus 1.425V–1.575V). Both maintain differential HCSL/LP-HCSL signal compatibility and identical package specifications.

Q: Is the RC19008A100GND#BB0 suitable for legacy systems designed around the 9DBU0741AKILF?

A: The substitute is electrically compatible in terms of differential signaling architecture and package form factor. System integration requires confirmation that the power supply can deliver the specified 2.97V–3.63V range and that the higher frequency capability does not introduce unintended effects in the application circuit.

Q: Are there any compliance or environmental differences between these parts?

A: Both devices are ROHS3 compliant and carry an MSL rating of 3 (168 Hours). No compliance or environmental differences exist between the two parts.

Q: What is the significance of the higher frequency rating on the RC19008A100GND#BB0?

A: The 400MHz maximum frequency specification on the RC19008A100GND#BB0 indicates broader bandwidth capability than the 167MHz rating of the 9DBU0741AKILF. This does not require the substitute to operate at higher frequencies in applications designed for lower speeds; the part is backward compatible with lower frequency operation within the specified supply voltage range.