BCM54294B0KFBG

Overview

The BCM54294B0KFBG is a quad-port Gigabit Ethernet PHY manufactured by Broadcom Limited. It integrates four independent GPHY channels within a single package, designed for high-density networking applications. The component supports standard Ethernet protocols including 10BASE-T, 100BASE-TX, and 1000BASE-T over copper cabling. It features SGMII interface compatibility for connection to host processors or switches. The device operates within an industrial temperature range, ensuring reliability in demanding environments. It utilizes a BGA-135 surface-mount package to minimize board space while maintaining signal integrity for multi-port connectivity.

Feature Summary

• Integrates four independent Gigabit Ethernet physical layer transceivers on a single chip
• Supports SGMII serial media-independent interface for flexible host connectivity
• Operates reliably across extended industrial temperature ranges
• Provides dual media port capabilities for redundant network configurations

Applications

• Industrial Ethernet switches requiring multiple ports in compact form factors
• Network infrastructure equipment with strict environmental operating requirements
• Embedded systems needing integrated multi-port Gigabit connectivity
• Telecommunications base stations and remote radio units

Procurement Notes

Verify the specific suffix KFBG against official Broadcom documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the BGA-135 configuration. Confirm supply chain authenticity through authorized distributors to avoid counterfeit components. Check for any recent product change notifications that may affect pinout or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring four simultaneous Gigabit Ethernet connections without external PHYs. Compare power consumption metrics against single-port alternatives if thermal management is constrained. Verify that the host processor supports the required SGMII lanes for proper data throughput. Consider the industrial temperature rating as a critical factor for outdoor or harsh environment deployments compared to commercial-grade variants.

Part Context

This part belongs to Broadcom's BCM54xxx series of Ethernet PHYs, which are widely used in networking equipment. The BCM54294 specifically addresses the need for quad-port solutions, reducing bill-of-materials complexity compared to using four separate single-port devices. It complements other Broadcom networking silicon by providing robust physical layer signaling for copper-based Ethernet networks.

Replacement Considerations

Direct replacements must match the quad-port architecture and BGA-135 footprint. Verify functional equivalence regarding SGMII support and industrial temperature ratings. Cross-reference with Broadcom's official obsolescence notices to ensure long-term availability. Alternative parts from other manufacturers require careful validation of pin-to-pin compatibility and electrical parameter alignment.