BCM53285MIPBG

Overview

The BCM53285MIPBG is an Ethernet PHY integrated circuit from the Broadcom BCM5328x series, designed for high-performance networking applications. It integrates 24 Fast Ethernet (10/100 Mbps) ports with dedicated PHYs and two Gigabit Ethernet ports supporting SGMII interface. Additionally, it features two 2.5 Gigabit Ethernet ports to support emerging multi-gigabit standards. The device includes an Integrated Management Processor (IMP) accessible via MII or Reduced MII interfaces, facilitating centralized control and management of the switch fabric within complex network topologies.

Feature Summary

• Integrates a comprehensive mix of 10/100 Mbps and multi-gigabit Ethernet physical layer transceivers on a single chip.
• Supports SGMII connectivity for uplink aggregation and inter-switch linking at gigabit speeds.
• Includes an internal management processor for streamlined configuration and monitoring of port states.
• Designed for compact form factors using BGA packaging suitable for dense board layouts.

Applications

• Enterprise access switches requiring mixed-speed port configurations
• Industrial networking equipment needing robust multi-gigabit uplinks
• Telecommunications infrastructure utilizing SGMII backplane connections

Procurement Notes

Verify component authenticity through authorized Broadcom distributors or certified suppliers. Request original manufacturer datasheets and RoHS compliance documentation prior to purchase. Confirm package marking and traceability codes match the BCM53285MIPBG specification. Ensure storage conditions adhere to moisture sensitivity level requirements to prevent soldering defects during assembly.

Selection Notes

Select this component when a design requires simultaneous support for legacy Fast Ethernet devices and modern 2.5GBASE-T endpoints without external PHYs. Evaluate pin compatibility and thermal dissipation capabilities for the specific PCB layout. Consider the IMP interface requirements against the host processor's available MII/RMII resources to ensure proper system integration and management overhead.

Part Context

This part belongs to the Broadcom BCM5328x family of Ethernet PHYs, which are engineered for cost-effective and space-constrained networking solutions. The series focuses on integrating multiple physical layers to reduce bill-of-materials complexity. The BCM53285 variant specifically targets applications balancing high port density with emerging multi-gigabit speed requirements.

Replacement Considerations

Consult official Broadcom documentation for qualified alternative part numbers within the BCM5328x family. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Cross-reference functional differences in the IMP interface or port configurations to ensure system integrity is maintained during any hardware revision changes.