BCM5324MKPBG

Overview

The BCM5324MKPBG is a single-chip L2+ managed switch featuring twenty-four integrated 10/100 Fast Ethernet transceivers and two Gigabit media access controllers. Built on a 0.13 μm CMOS process, it integrates packet buffers, address management, and a non-blocking switch fabric within a 400-pin PBGA package. The device supports up to 8K MAC addresses, 4K VLAN entries, and 256 multicast addresses. It includes an internal oscillator, embedded 2.5V and 1.2V regulators, and offers typical power consumption of 3.5W.

Feature Summary

• Integrates twenty-four full-duplex 10BASE-T/100BASE-TX/FX Fast Ethernet transceivers with Broadcom PHY Advanced Cable Diagnostic technology for cable fault detection and length measurement.
• Supports Layer 2 and Layer 3 IGMP snooping, IEEE 802.1Q VLAN segmentation, and four flexible Class of Service (CoS) queues per port for delay-sensitive traffic prioritization.
• Provides hardware support for SNMP and RMON through over 70 MIB counters, enabling comprehensive per-port receive and transmit statistics collection.
• Includes two GMII/RGMII/TBI interfaces for flexible 10/100/1000BASE-TX and fiber connectivity alongside SPI or MDC/MDIO CPU interface access.

Applications

• WebSmart managed switch designs
• Multitenant/multidweller unit (MDU/MTU) network systems
• Small-to-medium business (SMB) switches

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm exact package type and temperature range. Confirm that the component matches the intended application requirements regarding pinout compatibility and electrical specifications before finalizing procurement decisions.

Selection Notes

Select this component when designing high-integration L2+ managed switches requiring twenty-four Fast Ethernet ports and dual Gigabit uplinks. It serves as a direct replacement for traditional three- or four-chip solutions, simplifying PCB layout while maintaining advanced networking features like QoS and VLAN support.

Part Context

This model belongs to the Broadcom ROBOSwitch family, specifically designed for high integration in Ethernet switching applications. It represents the seventh generation of L2+ switches, combining extensive port density with robust management capabilities in a single semiconductor device.

Replacement Considerations

The BCM5322M (24FE+2MII) and BCM5321M (16FE+2G) are related models within the same product family. Verify interface compatibility and port count requirements when considering these alternatives.