BCM5389IFB - 8-Port SGMII Ethernet Switch | Broadcom
N.º de pieza: BCM5389IFB ✗ Fin de vida| Cant. | Precio unitario | Total |
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BCM5389IFB Descripción general
An Ethernet switch controller is a specialized network-interface IC that coordinates traffic among multiple Ethernet ports. In the broader hierarchy, it belongs to Ethernet controllers, then network interface controllers, then interface ICs, and ultimately semiconductor components. Broadcom's BCM5389 family consolidates switching, buffering, media access control, and management functions so that a system can implement a multiport switching subsystem without assembling the equivalent from separate discrete blocks.
The verified product information identifies BCM5389IFB as an 8-port SGMII switch interface and an Ethernet controller. Its integration reduces the number of external functional blocks and can simplify board routing compared with a multi-chip architecture. The non-blocking switch controller is designed to process traffic among the eight ports while the packet buffer manages queued frames. SGMII provides the physical-layer interface between the MAC-side controller and external Ethernet PHYs.
Compliance with IEEE 802.3 and its 802.3u, 802.3ab, and 802.3x subsections provides compatibility with standard Ethernet, Fast Ethernet, and Gigabit Ethernet devices. The included MAC control and pause-frame support are relevant to traffic management, while auto-negotiation support helps the system establish compatible operating modes with connected network equipment. These functions make the controller suitable for gateways, access equipment, and other multiport network systems.
Typical implementation places BCM5389IFB between eight SGMII-capable external PHYs and the surrounding switching or communications system. The controller manages the Ethernet MAC and switching functions, while the PHYs perform signal transmission and reception. Board design must account for high-speed differential routing, solid return paths, decoupling, BGA assembly, and the thermal footprint of a 256-ball package.
For an existing PCB, replacement should not be selected from the generic BCM57xx, BCM53xx, or BCM54xx families without verifying the exact pinout, power rails, clocking, PHY interface, management registers, and protocol support. The verified data does not identify any pin-compatible substitute, so this page does not assert an unverified drop-in replacement.
This page combines the verified manufacturer-document excerpts with practical integration guidance, comparison context, and procurement information. It distinguishes documented functionality from parameters that remain unavailable, helping engineers evaluate BCM5389IFB without treating generic Ethernet-controller family similarities as proof of replacement compatibility.
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Solicitar alternativasBCM5389IFB Valores máximos y características eléctricas
| Product Type | 8-port SGMII Ethernet switch controller |
| Number of Ports | 8 ports |
| Interfaz | SGMII |
| Process Technology | 0.13 µm CMOS |
| Integrated Functions | Packet buffer, media access controllers, address management, and non-blocking switch controller |
| IEEE 802.3 Compliance | Compliant |
| IEEE 802.3u Compliance | Compliant |
| IEEE 802.3ab Compliance | Compliant |
| IEEE 802.3x Compliance | Compliant |
| Supported Ethernet Types | Ethernet, Fast Ethernet, and Gigabit Ethernet |
| MAC Control Support | Supported |
| Pause Frame Support | Supported |
| Auto-Negotiation Support | Supported |
| Encapsulado | 256-ball BGA, square, bottom-side ball termination |
| Number of Terminals | 256 terminals |
| Terminal Form | Ball |
Guía de configuración de pines de BCM5389IFB 256-ball bga, square, bottom-side ball termination
Configuración de pines para BCM5389IFB (encapsulado 256-ball bga, square, bottom-side ball termination). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para BCM5389IFB.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
BCM5389IFB es adecuado para 6 aplicacións: Eight-Port Carrier Ethernet Gateway, Telecommunications Access Equipment, Industrial Ethernet Aggregation, Managed Network Switch Platform, Enterprise Network Edge Device, Network Processor Traffic Interface.
Eight-Port Carrier Ethernet Gateway
BCM5389IFB fits an eight-port carrier Ethernet gateway because it integrates eight SGMII interfaces with packet buffering, MACs, address management, and a non-blocking switch controller. The manufacturer data sheet confirms IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, and IEEE 802.3x support, including pause-frame handling, which is useful when upstream buffering is stressed. Eight compatible SGMII PHYs connect to the controller, while the surrounding system supplies clocking, management, and line-side service interfaces. The design advantage is functional consolidation: fewer separate Ethernet controller blocks can reduce board area and simplify software-visible traffic handling. The tradeoff is that every PHY and physical-layer requirement must be validated independently, because BCM5389IFB does not replace the external copper or fiber PHY.
Recomendado
Telecommunications Access Equipment
BCM5389IFB is applicable to telecommunications access equipment requiring eight coordinated SGMII ports and standards-based Ethernet behavior. Its integrated media access controllers, packet buffer, address management, and non-blocking switch controller provide a centralized switching subsystem for subscriber-facing or uplink traffic. IEEE 802.3x pause-frame support is particularly relevant when traffic must be controlled rather than dropped during congestion, while auto-negotiation support improves interoperability with standard Ethernet devices. The controller should be paired with PHYs appropriate to the media and line rates. Exact clocks, power rails, reset behavior, and management interfaces must be taken from the official BCM5389 documentation because the supplied excerpts do not quantify them.
Recomendado
Industrial Ethernet Aggregation
BCM5389IFB can serve as the central Ethernet aggregation component in industrial equipment that needs eight coordinated SGMII links. The non-blocking switch controller and integrated packet buffer allow multiple endpoints to share switching resources, while address management and media access control reduce the number of discrete blocks in the design. IEEE 802.3-family compliance supports standard network interoperability, and pause-frame handling offers a mechanism for congestion control. For an industrial system, the PHY selection must cover the required temperature range, isolation requirements, and cable reach. The available evidence confirms functional architecture and standards support, but it does not establish industrial temperature grade, electromagnetic-emissions performance, or long-term product availability.
Recomendado
Managed Network Switch Platform
BCM5389IFB is a natural fit for a managed eight-port Ethernet switch platform built around SGMII links between a switching controller and external PHYs. Packet buffering, address management, and media access control are combined with a non-blocking switch controller, allowing the platform to concentrate port traffic handling in one 256-ball BGA device. Standards coverage for IEEE 802.3, 802.3u, 802.3ab, and 802.3x supports interoperability with conventional Ethernet devices. Pause-frame support is useful for maintaining flow control under congestion, and auto-negotiation provides standard link setup. Engineering teams must still implement the host processor path, management software, clocks, reset sequencing, and thermal design around the manufacturer reference application.
Recomendado
Enterprise Network Edge Device
BCM5389IFB can support an enterprise network edge device that aggregates eight internal or service-facing Ethernet links through SGMII. Its integrated MACs and switch controller reduce the number of independent traffic-path components, while the packet buffer and pause-frame handling help manage burst traffic. Compliance with IEEE 802.3-family specifications supports use with standard Gigabit Ethernet devices, and auto-negotiation can simplify interoperability across different link capabilities. A practical implementation pairs BCM5389IFB with suitable PHYs and a management processor. Because the verified material does not state power consumption, operating temperature, security features, or host-interface details, those requirements must be checked against the complete manufacturer data sheet and product brief before architectural approval.
Recomendado
Network Processor Traffic Interface
BCM5389IFB is suitable as an eight-port traffic interface beside a network processor or dedicated switching host. The SGMII interface allows the controller to connect through external PHYs while its MAC, packet-buffer, address-management, and switching blocks handle traffic between those ports. This arrangement can offload repetitive Ethernet framing and flow-control work from the host processor, although the host still manages configuration, higher-layer protocols, and system policy. IEEE 802.3x pause-frame support helps propagate congestion conditions across the local port group. The design must reconcile the controller's clocking, reset, and management interface with the host subsystem, while the 256-ball BGA demands careful high-speed escape routing, layer-transition planning, and thermal verification.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para BCM5389IFB — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | Broadcom |
| Package | 256-ball BGA, square, bottom-side ball termination |
| Number of Ports | 8 ports |
| Interface | SGMII |
| Process Technology | 0.13 µm CMOS |
| IEEE 802.3 Compliance | Compliant |
| IEEE 802.3u Compliance | Compliant |
| IEEE 802.3ab Compliance | Compliant |
| IEEE 802.3x Compliance | Compliant |
| Pause-Frame Support | Supported |
| Auto-Negotiation Support | Supported |
| Number of Terminals | 256 terminals |
Diferenciadores clave
- Eight SGMII ports with integrated switching functions (frente a Unverified BCM57xx family candidate)
- Broad IEEE 802.3-family support (frente a Unverified BCM53xx or BCM54xx family candidate)
- Single monolithic network-controller implementation (frente a Unverified BCM54xx family candidate)
Notas de diseño
Plan the 256-ball BGA escape routing before schematic sign-off. The eight SGMII interfaces require short, controlled routes to external PHYs, and every high-speed differential pair needs a continuous return path through the reference plane. Follow the manufacturer's package drawing and reference layout for ball assignments, via-in-pad or fanout rules, and layer transitions. Do not derive SGMII lane connections from the generic 256-ball package description; cross-check the official pin table and PHY data sheets.
Use the manufacturer's recommended power-plane and decoupling configuration for BCM5389IFB. Place the required bulk and high-frequency capacitors adjacent to the associated supply balls, with short ground-via connections to suppress mounting inductance. The supplied excerpts do not state supply voltages, capacitor values, or sequencing requirements, so those values must come directly from the BCM5389 data sheet and product brief. Verify startup and power-off behavior against the external PHY and management-device requirements.
Treat each SGMII lane as a controlled-impedance differential pair and account for loss, skew, crosstalk, and connector or PHY escape effects. Use the manufacturer's reference stack-up as the starting point, then confirm insertion loss and return loss with the actual PCB material and PHY package. The verified material contains no rise-time, impedance, jitter, or trace-length values; do not infer these limits from the Ethernet standards alone because SGMII implementation details and PHY characteristics also constrain the channel.
Evaluate junction temperature and power dissipation under the worst sustained port-loading and temperature conditions. A 256-ball BGA can provide substantial thermal-spreading area, but the copper and via arrangement still determines performance. Use the manufacturer's power data and thermal model if available; where those values are absent, obtain them before release. Estimated calculations must not be treated as datasheet specifications, and enclosure airflow, adjacent heat sources, and ground-plane continuity should be included in validation.
Información de cumplimiento
The supplied manufacturer data-sheet excerpts and distributor listings do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for BCM5389IFB. These statuses require confirmation through Broadcom's current compliance or material-declaration documentation.
