BCM5325EKQMG

Overview

The BCM5325EKQMG is a six-port managed 10/100 Fast Ethernet switch fabricated in 0.18-µm CMOS technology. It integrates five full-duplex 10BASE-T/100BASE-TX transceivers, six MACs, and a non-blocking switching fabric within a single 128-pin MQFP package. The device features a 1-Mbit packet buffer and 512-Kbit control memory, supporting up to 1K MAC addresses with automatic learning. It operates on 3.3V and 2.5V supplies with power consumption under 1.0W. Key capabilities include four priority queues for QoS, port-based and 802.1Q VLAN support with 16 entries, and management via SPI or MDC/MDIO interfaces.

Feature Summary

• Integrates five 10/100 PHY transceivers and six MACs into a single high-density package
• Supports advanced Layer 2+ managed features including 802.1Q VLAN and IGMP snooping
• Provides programmable traffic management with storm control and per-port flow control
• Enables flexible connectivity through optional reversed MII ports and WAN port configuration

Applications

• Five-port 10/100 managed switches
• Broadband SOHO gateway and router applications
• Multimedia traffic handling for voice over IP and video
• Industrial and enterprise edge network devices requiring L2+ management

Procurement Notes

Verify the specific suffix KQMG against official Broadcom documentation to confirm exact temperature range and packaging specifications. Ensure compatibility with existing PCB footprints for the 128-pin MQFP package. Confirm that the selected variant meets the required environmental operating conditions for the target deployment environment before finalizing procurement orders.

Selection Notes

Select this component when a high level of integration is required for managed Ethernet switching applications. It is suitable for designs needing built-in QoS, VLAN segmentation, and security features like 802.1x without external discrete components. Consider the pin-compatibility with the BCM5325M if migrating from previous generations. Evaluate the power budget as the device consumes less than 1.0W while providing comprehensive switching capabilities.

Part Context

The BCM5325E series serves as a feature-enhanced successor to the industry-leading BCM5325M ROBOswitch. It maintains pin compatibility with the BCM5325M and BCM5325 variants while adding enhanced Layer 2+ management capabilities. This lineage ensures design continuity for manufacturers upgrading from standard unmanaged or basic managed switch solutions to more sophisticated network infrastructure components.

Replacement Considerations

The BCM5325E is pin-to-pin compatible with the BCM5325M and BCM5325U. Designers can substitute these parts directly if the additional managed features of the E-series are acceptable. Verify that the replacement part number matches the specific voltage and temperature requirements of the original design.