VSC7323VH-03

Specialized Overview

The VSC7323VH-03 is a Meigs-IIe triple-speed Ethernet MAC chip manufactured by Microchip Technology (formerly Vitesse Semiconductor). It integrates ten triple-speed MACs with integrated SerDes and one 10 Gigabit Ethernet MAC with an integrated XAUI interface. The device supports 10/100/1000 Mbps via MII, RGMII, or GMII, and 10 GbE via IEEE 802.3ae-compliant XAUI. It features a 16-bit OIF SPI-4.2 system interface for high-speed data transfer to network processors. Packaged in a 728-pin TBGA, it operates within the industrial temperature range of -40ºC to +85ºC using low power 0.18 micron CMOS technology.

Specialized Feature Summary

• Integrates ten triple-speed MACs with built-in SerDes and one dedicated 10 GbE MAC with XAUI.
• Supports loss-less flow control and intelligent VLAN/MPLS identification for metro applications.
• Features configurable parallel or serial CPU interfaces alongside dual MIIM management ports.
• Provides extensive loopback capabilities and independent ingress/egress traffic shaping.

Specialized Applications

• Enterprise and Metro Ethernet switches
• Multi-service provisioning platforms
• Metro SONET/SDH transport systems (ADMs)
• Edge and core aggregation routers
• DWDM transport terminals

Specialized Procurement Notes

Verify the specific suffix 'VH-03' against official documentation to confirm exact package variant and temperature grade. Ensure compatibility with existing PCB footprints for the 728-pin TBGA configuration. Confirm that the design supports the required SPI-4.2 and XAUI signaling standards for seamless integration into the target network architecture.

Specialized Selection Notes

Select this component for designs requiring high-density GbE and 10 GbE aggregation without external PHYs. The integrated SerDes reduces board space and cost compared to discrete solutions. Consider the 728-pin TBGA package complexity during layout. Verify that the host processor can support the SPI-4.2 interface speeds and CPU interface requirements for optimal performance.

Specialized Part Context

The VSC7323 belongs to the Meigs-IIe family of Ethernet MAC controllers designed for high-performance networking equipment. Originally developed by Vitesse Semiconductor, the product line was acquired by Microchip Technology. This series focuses on providing versatile building blocks for enterprise and metro networks, bridging the gap between traditional Gigabit Ethernet and emerging 10 Gigabit standards.

Specialized Replacement Considerations

Check for updated revisions from Microchip or Vitesse. Evaluate newer generations of Ethernet MAC controllers if lower pin counts or advanced features are required. Ensure any substitute maintains SPI-4.2 and XAUI compatibility for system-level interoperability.