BCM5389KFB - 8-Port Gigabit Ethernet Switch | Broadcom
Référence : BCM5389KFB ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
BCM5389KFB Présentation
An Ethernet switch is a semiconductor that connects multiple network endpoints through a shared internal fabric, forwarding Ethernet frames according to learned or configured addresses. The BCM5389 belongs to the switch-controller and Ethernet-interface hierarchy, integrating access-port connectivity, integrated SerDes, MAC processing, packet buffering, and host configuration into one highly integrated network controller.
The headline feature set is tailored to multiport Ethernet equipment: eight SGMII/SerDes ports, a 9-Gigabit aggregate non-blocking fabric, 128 KB of packet-buffer memory, and nine compliant MACs. The SPI interface provides configuration and control access, while GMII/RGMII/RvMII support broadens host-side and uplink connectivity. A maximum 9-KB frame size accommodates jumbo traffic and avoids unnecessary fragmentation on supported links.
The 256-BGA package concentrates substantial networking functionality into a compact 17 x 17 mm surface-mount footprint. Its many balls support high-density interconnect requirements but also demand careful PCB escape routing, via geometry, ground distribution, and assembly-process control. Exact electrical limits, clocking requirements, SerDes rates, voltage rails, and environmental ratings were not supplied in the verified data and must be confirmed in the manufacturer documentation before design release.
Typical uses include Gigabit Ethernet switches, industrial Ethernet equipment, access-network appliances, embedded network gateways, and aggregation equipment that needs multiple copper or PHY-facing ports. The integrated SerDes makes the device relevant to designs where compactness, deterministic fabric throughput, and centralized packet handling are more important than a simple standalone PHY.
Designers should treat the complete BCM5389 reference design, including power planes, decoupling, clocking, SerDes channel routing, reset sequencing, and PHY integration, as the starting point. SPI firmware must configure ports, packet handling, MAC behavior, and management settings consistently. Do not infer pin compatibility, power rails, timing, or automotive qualification from the package name alone.
This page consolidates the verified distributor description, Octopart sourcing information, architecture features, procurement context, and practical integration cautions. It distinguishes documented BCM5389 capabilities from parameters that still require manufacturer confirmation, helping engineers identify the device efficiently without presenting unverified specifications as facts.
Alternatives de remplacement direct pour BCM5389KFB — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesBCM5389KFB Valeurs maximales et caractéristiques électriques
| Product Type | 8-port Gigabit Ethernet switch with integrated SerDes |
| Ethernet Port Count | 8 SGMII/SerDes ports |
| Switch Fabric Throughput | 9 Gigabit Ethernet non-blocking |
| MAC Count | 9 MACs, 802.x compliant |
| Maximum Frame Size | 9 KB jumbo frames |
| Packet Buffer Memory | 128 KB |
| Host-Side Interface | One GMII/RGMII/RvMII interface |
| Configuration Interface | SPI |
| Serial Interface Type | Eight SGMII/SerDes interfaces |
| Boîtier | 256-BGA, 17 x 17 mm |
| Package Pin Count | 256 balls |
| Type de montage | Surface mount |
| Supplier Category | Ethernet switch SPI interface controller |
| Statut du cycle de vie | Active |
Guide de configuration des broches du BCM5389KFB 256 balls
Configuration des broches du BCM5389KFB (boîtier 256 balls). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour BCM5389KFB.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
BCM5389KFB convient pour 6 applications: Eight-Port Gigabit Ethernet Switch, Industrial Network Gateway, Embedded Network Appliance, Access-Network Aggregation, Ethernet Media Converter, Network Test and Measurement Appliance.
Eight-Port Gigabit Ethernet Switch
The BCM5389KFB fits a centralized eight-port Gigabit Ethernet design because it provides eight SGMII/SerDes interfaces, nine 802.x-compliant MACs, a 9-Gigabit non-blocking fabric, and 128 KB of packet-buffer memory. These PHYs or other supported remote devices connect through the SerDes ports, while the fabric forwards frames internally without relying on an external switch chip. The verified material does not provide SerDes rates or port-level latency, so PHY selection and signal-integrity validation must use the complete manufacturer design package.
Recommandé
Industrial Network Gateway
BCM5389KFB can serve as the switching core of an industrial gateway where several deterministic Gigabit Ethernet links must converge behind one host uplink. Its eight integrated SerDes interfaces reduce the number of discrete port controllers, while the documented 128-KB packet buffer and non-blocking 9-Gigabit fabric support burst handling. However, its documented operating-temperature range and industrial certifications are unavailable, making qualification essential before deployment. The 256-BGA package also requires a high-density PCB and controlled assembly process.
Recommandé
Embedded Network Appliance
The device is appropriate for evaluating in an embedded Linux or network-operating-system appliance that needs multiple Gigabit Ethernet ports and centralized traffic handling. Eight SerDes links, one GMII/RGMII/RvMII interface, nine compliant MACs, and SPI control provide a foundation for port configuration, address handling, and management integration. Its 256-BGA footprint imposes demanding routing and assembly requirements, and the verified sources do not specify driver support. Software bring-up must therefore include reset sequencing, register configuration, traffic testing, and fault recovery.
Recommandé
Access-Network Aggregation
BCM5389KFB can serve as the aggregation element in access-network equipment that combines multiple service-facing Gigabit Ethernet links with an uplink. Its eight SGMII/SerDes interfaces support a port-dense topology, and the 9-Gigabit non-blocking switch fabric is intended to move frames concurrently without an external fabric controller. The documented 9-KB jumbo-frame support may benefit traffic that carries jumbo packets on compatible links. Operators must separately confirm buffering behavior, QoS features, management requirements, and environmental qualification.
Recommandé
Ethernet Media Converter
A multiport media converter is another plausible use because BCM5389KFB can coordinate several SGMII/SerDes links and a common GMII/RGMII/RvMII uplink. The integrated nine-MAC architecture can replace a collection of independent interface blocks while preserving a centralized packet path. Design teams must verify supported copper PHY combinations, SerDes reach, clock architecture, line-rate behavior, and fault isolation; none of those device-level details is available in the supplied excerpts. Thermal and signal-integrity testing are particularly important for the dense 256-BGA implementation.
Recommandé
Network Test and Measurement Appliance
BCM5389KFB can fit a multiport packet-generation, traffic-analysis, or hardware-assisted network test appliance because eight SerDes links, nine compliant MACs, and a non-blocking 9-Gigabit fabric provide reusable switching resources. The external SPI interface allows a controller or processor to configure test scenarios, while the buffered fabric supports concurrent packet movement. Exact timestamps, traffic-generation capabilities, and test observability are not stated in the verified data and must not be inferred. Bring-up should cover throughput, congestion, frame-size, error injection, and recovery testing.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour BCM5389KFB — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Brand | Broadcom |
| Package | 256-BGA, 17 x 17 mm |
| Product Type | Ethernet switch controller |
| Gigabit Ethernet SerDes Interfaces | 8 |
| Switch Fabric Throughput | 9 Gigabit Ethernet non-blocking |
| MAC Count | 9 compliant MACs |
| Packet Buffer Memory | 128 KB |
| Host-Side Interface | 1 GMII/RGMII/RvMII interface |
| Control Interface | SPI |
| Maximum Supported Frame Size | 9 KB jumbo frames |
Principaux différenciateurs
- Dense integrated port architecture (vs W5100)
- Centralized non-blocking switching (vs LAN9252I/PT)
- Jumbo-frame-oriented buffering (vs KSZ8001LI)
Notes de conception
Do not begin the 256-BGA layout from distributor pin information alone. Obtain the exact order-specific ball map, differential SerDes pair assignments, power and ground balls, reference-design stack-up, and escape-routing rules from Broadcom. Preserve matched geometry and via symmetry on every SGMII/SerDes channel, provide a continuous ground reference, and validate the design with the prescribed field solver or measurement procedure.
Treat all eight SGMII/SerDes links as high-speed differential channels rather than ordinary digital routes. Use the manufacturer's reference stack-up, characteristic-impedance targets, insertion-loss budget, return-loss limits, and via geometry; the supplied sources do not disclose baud rate, loss tolerance, or reach. Validate eye opening, differential impedance, skew, crosstalk, and mode conversion on final copper before production release.
The verified sources do not specify BCM5389KFB supply rails, current limits, sequencing, or tolerance. Before schematic release, obtain the manufacturer power table and reference design, then reserve local high-frequency decoupling at every applicable supply ball and separate sensitive analog supplies from noisy digital return currents where the datasheet directs. Validate rail sequencing, startup current, steady-state dissipation, and thermal performance on hardware.
Do not infer pinout, timing, or software compatibility from the family name or an assumed equivalent. The 17 x 17 mm BGA has 256 balls, and the supplied excerpts contain no complete ball map. Lock the exact BCM5389KFB ordering code, datasheet revision, package drawing, firmware version, reference design, and change notices before release. Any cross-reference candidate must first prove identical ball compatibility and equivalent system behavior.
Informations de conformité
The verified excerpts do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Compliance must be confirmed from Broadcom documentation or the exact manufacturer material declaration.
