DP83902AVLJ Equivalent & Substitute Parts

Part Overview

The DP83902AVLJ is a serial network controller IC manufactured by Texas Instruments, housed in a 100-QFP package. This component functions as a controller interface for network applications. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

DP83902AVLJ

Texas InstrumentsIn Stock: 2426DP83902AVLJ Datasheet

Current PartRFQ

SERC816/TR

STMicroelectronicsIn Stock: 3374SERC816/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DP83902AVLJ is determined by the following critical parameters:

• Package Compatibility: Both parts must use the 100-BQFP package format (100-QFP or 100-PQFP variants with 14x20mm dimensions)
• Voltage Supply Range: Operating voltage must encompass or match the 4.75V ~ 5.25V specification
• Functional Classification: Both parts must serve as interface controllers
• Electrical Interface: Pin configuration and signal compatibility at the 100-pin package level

The SERC816/TR from STMicroelectronics meets these substitution criteria through identical package geometry, overlapping voltage specifications, and equivalent controller functionality within the interface category.

Parameter Comparison

Engineering Selection Recommendations

The SERC816/TR serves as the designated substitute for the DP83902AVLJ based on the following factors:

Product Status: The DP83902AVLJ is obsolete, while the SERC816/TR maintains active production status, ensuring long-term component availability and supply chain continuity.

Compliance Posture: The SERC816/TR achieves ROHS3 compliance, whereas the DP83902AVLJ is RoHS non-compliant. For applications subject to environmental regulations or customer requirements mandating RoHS compliance, the SERC816/TR is the appropriate selection.

Package Compatibility: Both components utilize the 100-BQFP package with identical 14x20mm dimensions, enabling direct physical substitution on existing PCB layouts.

Electrical Specifications: Voltage supply ranges are identical (4.75V ~ 5.25V), supporting seamless integration into existing power distribution architectures.

Operating Temperature Range: The SERC816/TR provides an extended operating temperature range (-40°C ~ 85°C) compared to the DP83902AVLJ (0°C ~ 70°C), offering greater thermal flexibility for diverse application environments.

Frequently Asked Questions (FAQ)

Q: Can the SERC816/TR be used as a direct replacement for the DP83902AVLJ?

A: The SERC816/TR is compatible with the DP83902AVLJ at the package and voltage supply levels. Both components share the 100-BQFP package format and identical supply voltage specifications (4.75V ~ 5.25V). Functional equivalence at the pin level requires verification against specific application requirements and protocol implementations.

Q: What is the significance of the different package designations (100-QFP vs. 100-PQFP)?

A: Both designations refer to 100-pin quad flat pack configurations with identical 14x20mm physical dimensions. The "P" in PQFP indicates a plastic variant, while QFP is the general classification. These are mechanically and electrically compatible for PCB mounting and signal routing purposes.

Q: Why is RoHS compliance important for this substitution?

A: RoHS compliance restricts the use of hazardous substances in electrical and electronic equipment. The SERC816/TR's ROHS3 compliance makes it suitable for applications and markets with regulatory requirements or customer specifications mandating RoHS-compliant components. The DP83902AVLJ's non-compliance may restrict its use in such applications.

Q: How does the extended operating temperature range of the SERC816/TR affect substitution decisions?

A: The SERC816/TR operates across -40°C ~ 85°C, compared to the DP83902AVLJ's 0°C ~ 70°C range. This extended range provides greater thermal margin for applications operating in extreme environments. If the original design operates within 0°C ~ 70°C, the SERC816/TR remains fully compatible.

Q: What is the Moisture Sensitivity Level (MSL) difference, and does it matter?

A: The DP83902AVLJ has MSL 1 (unlimited shelf life), while the SERC816/TR has MSL 3 (168-hour limit after moisture exposure). MSL 3 components require controlled storage and handling procedures. For applications with extended component storage or high-humidity environments, MSL requirements should be evaluated against procurement and manufacturing processes.