Equivalent & Substitute Parts for 9DB823BGLF

Part Overview

The 9DB823BGLF is a PC Clock IC manufactured by Renesas Electronics Corporation, designed for Intel QPI and PCI Express (PCIe) fanout buffer applications. This device functions as a zero delay buffer and multiplexer with 400MHz maximum frequency capability and HCSL input/output signaling. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

9DB823BGLF

Renesas Electronics CorporationIn Stock: 7719DB823BGLF Datasheet

Current PartRFQ

9ZXL0831EKILF

Renesas Electronics CorporationIn Stock: 22239ZXL0831EKILF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 9DB823BGLF is determined by the following critical parameters:

• Frequency Capability: Maximum operating frequency of 400MHz or greater
• Supply Voltage Range: 3.135V ~ 3.465V compatibility
• Signaling Standards: HCSL input and output support for Intel QPI and PCIe applications
• Circuit Configuration: Single circuit (1:N fanout buffer) topology
• Differential Signaling: Yes/Yes (differential input and output)
• Manufacturer: Renesas Electronics Corporation maintains design continuity and application support
• Product Status: Active or current production status preferred for long-term availability

The 9ZXL0831EKILF qualifies as a substitute based on matching frequency, voltage, signaling standards, and manufacturer continuity, despite differences in package type and input:output ratio.

Parameter Comparison

Engineering Selection Recommendations

The 9ZXL0831EKILF is the manufacturer-recommended substitute for the obsolete 9DB823BGLF. Both devices are manufactured by Renesas Electronics Corporation and maintain identical frequency, voltage supply, and signaling compatibility for Intel QPI and PCI Express applications.

Key considerations for selection:

• Product Status: The 9ZXL0831EKILF is active production, ensuring long-term availability and supply chain continuity compared to the obsolete 9DB823BGLF.
• Compliance: The 9ZXL0831EKILF achieves ROHS3 compliance, meeting current environmental and regulatory requirements.
• Operating Temperature Range: The 9ZXL0831EKILF supports -40°C ~ 85°C, providing extended temperature operation compared to the 0°C ~ 70°C range of the main part.
• Package Transition: The shift from 48-TFSOP to 48-VFQFN requires PCB layout modification and thermal management evaluation due to the exposed pad design.
• Input:Output Ratio: The 9ZXL0831EKILF provides 1:8 fanout versus 1:9 for the original part; system architecture must accommodate this output count difference.
• Moisture Sensitivity: The 9ZXL0831EKILF has MSL 3 (168 Hours) versus MSL 1 (Unlimited); storage and handling procedures must reflect this requirement.

Frequently Asked Questions (FAQ)

Q: Can the 9ZXL0831EKILF directly replace the 9DB823BGLF without design changes?

A: Direct pin-for-pin replacement is not possible due to package differences (48-TFSOP versus 48-VFQFN). PCB layout redesign is required. Additionally, the 1:8 output ratio differs from the original 1:9 configuration, requiring system-level verification.

Q: What are the critical electrical compatibility factors?

A: The substitute maintains identical supply voltage (3.135V ~ 3.465V), maximum frequency (400MHz), and HCSL signaling standards. Both devices support differential input and output signaling required for Intel QPI and PCIe applications.

Q: How does the package change affect thermal performance?

A: The 48-VFQFN with exposed pad provides improved thermal dissipation compared to the 48-TFSOP package. Thermal analysis should be performed to confirm adequate heat transfer in the target application.

Q: What handling precautions apply to the 9ZXL0831EKILF?

A: The substitute has MSL 3 (168 Hours) moisture sensitivity versus MSL 1 (Unlimited) for the original part. Storage must maintain humidity levels below 30% RH, and baking procedures may be required if moisture absorption limits are exceeded.

Q: Are there any compliance differences between the two parts?

A: The 9ZXL0831EKILF is ROHS3 compliant, while the original part does not specify RoHS status. Both maintain REACH Unaffected status and EAR99 export classification.

Q: What is the significance of the input:output ratio difference?

A: The 9DB823BGLF provides nine output channels from one input, while the 9ZXL0831EKILF provides eight output channels. System designs must verify that eight outputs satisfy the fanout requirements, or alternative solutions must be evaluated.