BCM5387KFBG

Overview

The Broadcom BCM5387KFBG is an eighth-generation switch-on-chip designed for standalone Gigabit Ethernet switches and control plane applications. It integrates five SGMII/SerDes interfaces, one GMII/RGMII interface, and a non-blocking 6-Gigabit Ethernet switch fabric within a single 0.13 µm CMOS device. The component features six IEEE-compliant MACs, including five connected to SerDes cores and one supporting multiple MII modes for CPU connections. It includes a 128-KB packet buffer memory, supports up to 4k unicast MAC addresses and VLANs, and operates with a power consumption of less than 1.5W in a 256-pin FBGA package.

Feature Summary

• Integrates five SGMII/SerDes interfaces and one GMII/RGMII interface for flexible connectivity options.
• Supports advanced traffic management through four 802.1p QoS or DiffServ priority queues and port-based rate control.
• Enables network segmentation and security via support for up to 4k VLANs and MAC-based port aggregation.
• Facilitates high-performance data transfer with jumbo frame support and automatic address learning.

Applications

• Standalone Gigabit Ethernet switches for SOHO environments
• Gigabit Ethernet control plane and backplane applications
• Enterprise branch office networking equipment

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with required SPI or EEPROM configuration interfaces. Confirm that the 256-pin FBGA footprint matches the target PCB design constraints.

Selection Notes

Select this component when a highly integrated solution with low external component count is required. Consider its suitability for fanless operation due to low power dissipation. Evaluate the need for managed features like Spanning Tree support versus unmanaged plug-and-play requirements.

Part Context

This part belongs to Broadcom's eighth-generation switch-on-chip family, focusing on cost-effective Gigabit Ethernet solutions. It is designed to replace multi-component switch designs by integrating MACs, SerDes, and switching fabric into a single die, reducing system complexity and board space.

Replacement Considerations

Consult official Broadcom documentation for verified cross-reference part numbers. Verify pinout and register compatibility before substituting with other models in the BCM53xx series.