BCM5320MIPB

Overview

The BCM5320MIPB is a high-performance, highly integrated Gigabit Ethernet switch chip manufactured by Broadcom. It features an eight-port Gigabit Ethernet MAC with integrated PHYs, designed to support advanced Layer 2 switching capabilities. The device incorporates hardware-based Quality of Service (QoS) mechanisms, including port-based and 802.1p priority queuing, to manage traffic flow efficiently. It supports VLAN tagging for network segmentation and provides robust security features such as access control lists. The chip is engineered for low power consumption and minimal external component requirements, making it suitable for dense deployment in enterprise and industrial networking environments.

Feature Summary

• Integrates eight Gigabit Ethernet ports with built-in PHY transceivers to reduce board space and BOM complexity.
• Supports hardware-accelerated Layer 2 switching functions including VLAN tagging and QoS prioritization.
• Includes comprehensive security features with hardware-based ACLs for packet filtering and access control.

Applications

• Enterprise campus switches requiring high port density and managed switching features.
• Industrial automation networks needing reliable Gigabit connectivity with QoS guarantees.
• Telecommunications infrastructure equipment utilizing standardized Gigabit Ethernet interfaces.

Procurement Notes

Verify the specific suffix of the part number against official Broadcom documentation to confirm temperature range and package variant. Ensure that the source document explicitly identifies the manufacturer as Broadcom Limited. Cross-reference the datasheet revision date to ensure compatibility with current design specifications. Confirm RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when designing systems requiring eight integrated Gigabit ports without external PHYs. Evaluate thermal dissipation requirements based on the full load switching capacity. Compare pinout compatibility with existing PCB layouts if migrating from previous generations. Verify support for required management protocols if software-defined features are needed.

Part Context

This component belongs to Broadcom's BCM53xx series of Ethernet switch controllers, which are widely used in managed and unmanaged switch designs. The series is known for integrating MAC and PHY functions to simplify system architecture. This specific model targets applications demanding high throughput and advanced Layer 2 features within a compact form factor.

Replacement Considerations

Check for direct cross-references in Broadcom's product transition notices. Verify pin-to-pin compatibility with legacy models like the BCM5325 if upgrading existing designs. Ensure functional equivalence in QoS and VLAN support before substituting.