VSC7421XJG-02

Telecom Overview

The VSC7421XJG-02 is an unmanaged Layer-2 Gigabit Ethernet switch from the Caracal family, manufactured by Microchip Technology. It integrates 17 transceivers, including 12 built-in copper PHYs, supporting 10BASE-T, 100BASE-FX, and 1GBASE-TX standards. The device operates within a temperature range of 0°C to +125°C and utilizes a BGA-672 package. Core voltage specifications are listed between 1V minimum and maximum in distributor data, while I/O interfaces include MIIM, QSGMII, SGMII, SPI, UART, JTAG, GPIO, IRQ, and 2-Wire serial connections.

Telecom Feature Summary

• Integrates 12 copper physical layer transceivers for direct twisted-pair connectivity
• Supports multiple Ethernet media types including fiber optic and copper twisted pair
• Includes hardware-based MAC address learning and forwarding capabilities
• Features comprehensive management interfaces for system integration

Telecom Applications

• Industrial networking equipment requiring wide temperature operation
• Unmanaged Layer-2 switching solutions for enterprise access layers
• Embedded communication systems utilizing integrated copper PHYs

Telecom Procurement Notes

Verify component authenticity through authorized Microchip distributors or official manufacturer channels. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Review the specific datasheet revision VMDS-10392 for accurate electrical characteristics and pinout definitions. Ensure supply chain documentation matches the exact ordering suffix XJG-02.

Telecom Selection Notes

Select this component when an unmanaged L2 solution with integrated copper PHYs is required. Verify that the 12 internal PHYs meet the port density needs without external transceivers. Check compatibility with existing board layouts for the BGA-672 package dimensions. Confirm thermal requirements align with the specified operating temperature range for the target enclosure.

Telecom Part Context

This part belongs to the VSC7420-02, VSC7421-02, and VSC7422-02 family of Gigabit Ethernet switches. The VSC7421 variant specifically distinguishes itself by integrating copper PHYs, whereas other family members may rely on external transceivers or different port configurations. All share the same underlying Caracal architecture and packet processing engine.

Telecom Replacement Considerations

Direct replacements within the same family include VSC7420XJG-02 and VSC7422XJG-02, though port counts and PHY integration differ. Cross-family migration requires careful review of register maps and pin assignments. No alternative manufacturers offer functionally identical silicon with this specific combination of integrated copper PHYs and unmanaged operation.