BCM53393A0KFSBLG

Overview

The BCM53393A0KFSBLG is a high-performance Ethernet switch IC from Broadcom Limited, designed for enterprise-grade networking applications. It features a 24+4 port architecture, providing 24 Gigabit Ethernet ports and four additional uplink ports. The device integrates advanced Layer 2 switching capabilities with a focus on energy efficiency. Key technical specifications include support for Energy Efficient Ethernet (EEE) to reduce power consumption during low-traffic periods. The chip incorporates integrated VLAN, QoS, LACP, ACL, and IGMP Snooping functions to ensure secure and optimized data flow management.

Feature Summary

• Integrates 24 Gigabit Ethernet ports with four dedicated uplink ports for flexible network topology expansion.
• Supports Energy Efficient Ethernet (EEE) technology to dynamically adjust power usage based on traffic load.
• Provides comprehensive Layer 2 management features including VLAN segmentation, QoS prioritization, and ACL security policies.

Applications

• Enterprise access layer switches requiring high port density and managed features.
• Industrial networking equipment needing robust Layer 2 switching and reliability.
• Data center aggregation points utilizing the four uplink ports for high-speed connectivity.

Procurement Notes

Verify the specific ordering suffix KFSBLG against the manufacturer's current datasheet to confirm package type and temperature range. Ensure compatibility with existing PCB footprints and thermal design requirements. Confirm RoHS compliance status through official documentation before finalizing procurement orders.

Selection Notes

Select this component when a 28-port solution with integrated uplinks is required for managed switching environments. Consider its EEE capabilities if power efficiency is a critical design constraint. Evaluate the need for specific Layer 2 features like LACP and ACL against alternative models in the BCM53xxx series.

Part Context

This part belongs to the Broadcom BCM533xx series of Ethernet switch controllers. It is positioned as an enterprise-grade solution bridging entry-level and mid-range switching needs. The series is known for integrating PHY functionality and advanced switching engines into a single package, simplifying board design for switch manufacturers.

Replacement Considerations

Check for direct pin-to-pin replacements within the BCM533xx family, such as the BCM53333 or BCM53334 variants, depending on port count and feature set requirements. Verify that any substitute maintains the same package dimensions and electrical characteristics.