VSC7323VH-03 Equivalent & Substitute Parts

Part Overview

The VSC7323VH-03 is a 10-port Gigabit Ethernet MAC interface IC manufactured by Microchip Technology, packaged in a 728-TBGA (42.5x42.5) ball grid array. This component integrates Ethernet switching and management functionality with SPI serial interface capability. The part is classified as obsolete, necessitating identification of active alternative components that maintain functional compatibility for Ethernet interface applications. Substitute parts must support equivalent interface protocols and electrical specifications to ensure system-level compatibility.

Substiute Parts

VSC7323VH-03

Microchip TechnologyIn Stock: 889VSC7323VH-03 Datasheet

Current PartRFQ

ADN8102ACPZ-R7

Analog Devices Inc.In Stock: 1236ADN8102ACPZ-R7 Datasheet

MFR RecommendedRFQ

DP83822IRHBT

Texas InstrumentsIn Stock: 3451DP83822IRHBT Datasheet

MFR RecommendedRFQ

MAX14502AETL+

Analog Devices Inc./Maxim IntegratedIn Stock: 21264MAX14502AETL+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VSC7323VH-03 is determined by the following critical parameters:

Interface Protocol Compatibility: The main part supports MII, Parallel, Serial, and SPI interfaces. Substitute parts must maintain at least one of these interface protocols to ensure functional compatibility within existing system architectures.

Application Domain: All candidates must serve Ethernet interface or Ethernet controller applications, as this defines the core functional requirement.

Electrical Compliance: All substitute parts must maintain ROHS3 compliance and operate within standard industrial voltage ranges to ensure regulatory and environmental compatibility.

Mounting and Packaging: Surface mount technology is required for all substitutes to maintain PCB assembly compatibility.

The three identified substitute parts represent active alternatives across different interface implementations: Ethernet controller interfaces (ADN8102ACPZ-R7, DP83822IRHBT) and USB interface specialization (MAX14502AETL+), each supporting serial communication protocols compatible with the original part's SPI and serial interface capabilities.

Parameter Comparison

Engineering Selection Recommendations

DP83822IRHBT is the primary substitute for Ethernet MAC applications. This Texas Instruments component maintains MII and RMII interface protocols directly compatible with the VSC7323VH-03's Ethernet interface requirements. The part is active, ROHS3 compliant, and available in high inventory (3432 units). The 32-VQFN package represents a significant footprint reduction compared to the original 728-TBGA, requiring PCB layout redesign but offering improved thermal characteristics and reduced board space.

ADN8102ACPZ-R7 serves as an alternative for Ethernet controller interface applications requiring I2C serial communication. This Analog Devices component supports the serial interface requirement of the original part and maintains ROHS3 compliance. The 64-LFCSP-VQ package provides moderate footprint reduction with adequate inventory availability (1158 units).

MAX14502AETL+ is applicable only for applications where USB interface functionality is acceptable as a replacement for Ethernet MAC functionality. This part supports I2C and 2-wire serial protocols and offers the highest inventory availability (21242 units). Selection of this substitute requires functional system redesign and is not recommended for direct Ethernet MAC replacement.

All three substitutes maintain ROHS3 compliance and are currently in active production status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can DP83822IRHBT directly replace VSC7323VH-03 in existing designs?

A: DP83822IRHBT supports MII and RMII Ethernet interface protocols compatible with the VSC7323VH-03. However, the package change from 728-TBGA to 32-VQFN requires PCB layout modification. Electrical compatibility is maintained within the specified voltage ranges.

Q: What is the primary difference between the three substitute options?

A: DP83822IRHBT and ADN8102ACPZ-R7 are Ethernet-focused interface components. DP83822IRHBT emphasizes MII/RMII protocols, while ADN8102ACPZ-R7 emphasizes I2C serial control. MAX14502AETL+ is a USB interface component and represents a functional category change rather than a direct substitute.

Q: Does package size affect electrical performance?

A: Package size does not affect electrical performance specifications. However, smaller packages (32-VQFN, 40-TQFN, 64-LFCSP) offer improved thermal dissipation characteristics compared to the original 728-TBGA due to reduced thermal mass and improved solder joint geometry.

Q: Are all substitutes RoHS compliant?

A: All three substitute parts maintain ROHS3 compliance, matching the original VSC7323VH-03 certification status.

Q: Which substitute has the best inventory availability?

A: MAX14502AETL+ has the highest inventory (21242 units), followed by DP83822IRHBT (3432 units) and ADN8102ACPZ-R7 (1158 units). Inventory levels should be verified with suppliers for current availability.

Q: What is the moisture sensitivity impact of substitution?

A: The original part has MSL 1 (unlimited). DP83822IRHBT has MSL 2 (1 year), and ADN8102ACPZ-R7 has MSL 3 (168 hours). MAX14502AETL+ maintains MSL 1. Higher MSL ratings require stricter moisture control during storage and assembly.