Interface ICs
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Products (3,400+)
BCM53158XMB0KFBG - 8-Port GbE Managed Switch SoC | Broadcom
The Broadcom BCM53158XMB0KFBG is an 8-port Gigabit Ethernet managed switch system-on-chip (SoC) integrating 10/100/1000 Base-T/TX PHYs, a high-performance switch fabric, and management interfaces (I2C, SPI) in a single IC. It targets cost-sensitive enterprise, SMB, and industrial Ethernet switching applications, providing Layer 2 switching with full wire-speed performance on all eight integrated PHYs simultaneously. What is a managed Ethernet switch SoC? A managed Ethernet switch SoC combines the physical layer transceivers (PHYs), the Layer-2 packet switch fabric, the lookup table / forwarding engine, and management CPU interfaces into a single silicon die. In the broader system hierarchy it belongs to: Ethernet controller -> network controller -> networking IC -> semiconductor. Unlike a dumb unmanaged switch ASIC or a discrete MAC+external PHY approach, an integrated switch SoC eliminates inter-IC MII/GMII buses, reduces BOM cost, simplifies PCB layout, and shrinks the overall switch design footprint. Key features include eight integrated 10/100/1000 Mbps copper transceivers compliant with IEEE 802.3, 10/100/1000 Base-T/TX standards, wire-speed Layer-2 forwarding, support for advanced QoS, VLAN tagging, IGMP snooping, and port-mirroring features, plus an SPI master/slave port and I2C management interface for CPU-less or host-managed configurations. The integrated PHYs support auto-negotiation, auto-MDI/MDIX crossover, and Energy-Efficient Ethernet (EEE) per IEEE 802.3az. The BCM53158XMB0KFBG uses Broadcom's proven RoboSwitch architecture with shared-memory packet processing and a 12 Gbps internal fabric that supports full line-rate operation on all eight ports. On-chip regulators simplify power-supply sequencing, and per-port activity LEDs are driven directly, removing external LED drivers. Typical applications include 8-port unmanaged/managed Gigabit Ethernet switches, SMB and home-office gateway routers with integrated switching, IP surveillance NVR switches, industrial Ethernet switches, and PoE midspan/spans that need integrated PHY+MAC functionality. When designing with this device, ensure the MII/RGMII/SPI/I2C connections to the host CPU or EEPROM are properly terminated, and that adequate bulk decoupling is placed near the analog supply pins to meet IEEE 802.3 return-loss specifications. The BCM53158XMB0KFBG uses a standard Broadcom switch reference design footprint, simplifying layout reuse across the BCM5315x family. This page synthesizes distributor pricing, drop-in alternatives within the BCM5315x family, and practical design notes not found in the manufacturer datasheet.
BCM53158XMB1KFBG - 12-Port GbE Switch with 10G Uplinks | Broadcom
The Broadcom BCM53158XMB1KFBG is an ultra-low-power 12-port Layer-2 Gigabit Ethernet switch from the RoboSwitch family, integrating 8x Gigabit Ethernet (GE) PHYs, 1x QSGMII, and 2x 10G uplink interfaces in a single 311-pin LFBGA package. According to Broadcom's product family datasheet, the BCM53154/BCM53156/BCM53158 family targets cost-effective low-power applications across SMB, Enterprise, Service-Provider, SOHO, and Industrial markets, with C-Temp commercial operating range. A Layer-2 Ethernet switch is a network device that operates at the data link layer (OSI Layer 2) to forward Ethernet frames between connected devices using MAC address lookup tables. Layer-2 switches form the foundational building blocks of virtually every wired enterprise, industrial, and SMB network. The BCM53158 belongs to the broader taxonomy: Ethernet switch -> network switch -> networking IC -> semiconductor, integrating PHY, MAC, and switch fabric functions on a single die to reduce BOM cost and PCB area. Key features include IEEE 802.3 compliance, support for 10/100/1000 Base-T/TX PHY interfaces, integrated ARM-class management CPU, and a rich set of host interfaces including GPIO, I2C, MII, and SPI. The 10G uplink ports enable aggregation to backbone switches, while the QSGMII provides a quad-SERDES interface commonly used to connect to a host CPU or upstream device. The architecture supports advanced Layer-2 features such as VLAN tagging (802.1Q), QoS prioritization, IGMP snooping, and port-based security. Technical depth: The BCM53158XMB1KFBG implements Broadcom's proven RoboSwitch architecture with shared-memory packet buffer architecture, hardware-based address learning, and store-and-forward switching. The integrated 10G SERDES lanes enable direct connection to SFP+ cages or backplane interfaces without external PHYs. The device typically operates from a single 1.0V/1.2V core supply with 3.3V I/O, and supports Energy Efficient Ethernet (EEE, 802.3az) for power savings on idle links. Typical applications include SMB managed switches, industrial Ethernet switches, SOHO routers with multi-port LAN, service-provider customer-premises equipment (CPE), and enterprise branch office access switches. The 10G uplinks make the device suitable for aggregation tiers where 1G access ports need to feed 10G backbone capacity. Design consideration: When designing with the BCM53158XMB1KFBG, ensure the 311-pin LFBGA PCB land pattern is manufactured with HDI (high-density interconnect) processes such as laser-drilled microvias. Thermal management requires a copper pour beneath the exposed die paddle; without proper thermal vias the device will throttle at high ambient temperatures. Reference Broadcom's reference design guide for magnetics selection and layout. This page synthesizes distributor pricing, parametric comparison with alternative Ethernet switches, application guidance, and design notes not found in the manufacturer datasheet alone - enabling faster design-in and procurement decisions.
BCM53158XUB1KFBG - 8-Port GE Robo2 Switch + 2x10GE Uplinks | Broadcom
The Broadcom BCM53158XUB1KFBG is an 8-port Gigabit Ethernet Layer-2 switch with two 10-Gigabit uplink ports, optimized for ultra-low-power applications in cost-sensitive networking equipment. Part of the BCM53154/BCM53156/BCM53158 family (Robo2 generation), it integrates eight 10/100/1000 BASE-T/TX PHYs, two 10GE SGMII/XFI uplink interfaces, an ARM-based management CPU, packet processors, and MAC address tables, all in a single high-integration BGA package. The 'U' suffix denotes the Commercial grade, and 'B1' identifies the silicon revision. An Ethernet switch IC is a semiconductor device that interconnects several LAN segments at Layer 2 of the OSI model, forwarding Ethernet frames between ports using MAC address lookup tables. Modern highly-integrated switch ICs combine the PHYs, MACs, queueing engines, and CPU subsystem onto a single die, reducing BOM cost and PCB area for routers, gateways, and industrial Ethernet equipment. Within the taxonomy: Ethernet switch -> Layer-2 switch -> network IC -> wired networking semiconductor -> integrated circuit. Key features include support for 8 GE downlink ports plus 2x10GE (or 2x5GE/2x2.5GE) flexible uplinks, IEEE 802.3az Energy-Efficient Ethernet, IPv4/IPv6 L2/L3/L4 ACL, QoS with eight queues per port, and integrated 8051-compatible management. It supports SPI, I2C, MII/GMII, and GPIO host interfaces for management, plus LED controllers for per-port link/activity indication. The device operates from a single 1.0V core supply with integrated voltage regulators, minimizing external component count. The BCM53158XUB1KFBG is fabricated in a low-power CMOS process and uses power-gating on inactive PHYs to deliver sub-watt idle consumption. Its packet processor supports wire-speed forwarding on all GE ports plus line-rate 10GE uplinks, with hardware NAT and tunnel offload for gateway deployments. Built-in TCAM enables wire-speed ACL and QoS classification without CPU intervention. Typical applications include SMB/SOHO routers, enterprise edge switches, xDSL/cable gateways, Wi-Fi 6/7 access points, industrial Ethernet switches, and small-cell backhaul. The 2x10GE uplinks enable aggregation into 10G core networks without an additional switch device. Design considerations include proper decoupling of the 1.0V core rail and thermal management of the high-ball-count BGA package in confined enclosures. This page synthesizes distributor pricing snapshots, package diagrams, and design notes that complement the manufacturer datasheet for engineers evaluating the BCM53158XUB1KFBG.
BCM53202MIPB - 8-Port Managed Ethernet Switch | Broadcom
Broadcom BCM53202MIPB is an Ethernet managed switch controller with eight Fast Ethernet ports and two Gigabit Ethernet interfaces. It integrates network switching, port management, and Gigabit Ethernet connectivity into a single semiconductor device, making it suitable for industrial networking, embedded communications, access equipment, and managed Ethernet systems. An Ethernet managed switch controller is a specialized network-interface semiconductor that coordinates traffic across multiple Ethernet ports while supporting address management, traffic control, and administrative features. It sits between physical Ethernet PHYs and the system-level network stack, forming part of the hierarchy Ethernet controller → network switch controller → interface IC → semiconductor. Integrating switching functions can reduce external component count and simplify the design of managed Layer 2 equipment. The BCM53202MIPB combines eight 10/100 Fast Ethernet ports with two Gigabit Ethernet interfaces in one device. This mixed-speed architecture allows it to serve legacy Fast Ethernet endpoints while also supporting higher-bandwidth Gigabit Ethernet uplinks or network management connections. Its managed-switch role makes it more appropriate for controlled network equipment than for a simple unmanaged endpoint PHY. The device is identified specifically as an Ethernet managed switch controller, while comparison listings describe the BCM53202 family as a managed switch with eight Fast Ethernet ports and a two-port Gigabit Ethernet interface. The suffix-bearing BCM53202MIPB ordering code distinguishes this exact catalog entry from related BCM53202 variants. Detailed electrical limits, operating-temperature limits, pin assignments, package dimensions, and timing characteristics should be confirmed against the manufacturer datasheet before schematic release. Typical applications include industrial Ethernet gateways, embedded control networks, access-point equipment, network-interface controllers, print servers, industrial communication systems, and managed edge devices. In these systems, the controller can manage multiple Fast Ethernet connections and connect them to higher-speed backbone equipment through its Gigabit Ethernet interfaces. The device is intended for designs where centralized Layer 2 port management and compact network integration are important. PCB implementation requires careful separation of Ethernet signal routes, power distribution, and high-speed clock or interface paths. Keep the manufacturer's recommended decoupling network close to the device, route differential Ethernet pairs as controlled-impedance nets, and preserve the referenced grounding and isolation arrangement. Because the exact package and complete pin map are not documented in the accessible source results, use the manufacturer pin-description and layout guidance rather than inferring connections from the ordering code. This product record combines the exact Broadcom ordering code, Ethernet switching architecture, port configuration, sourcing links, and selection guidance in one place. It also separates verified device facts from parameters that require confirmation, helping engineers evaluate fit, identify relevant alternatives, and plan the next design step without introducing unsupported electrical assumptions.
BCM5320MKPB - 26-Port Managed Ethernet Switch | Broadcom
Broadcom BCM5320MKPB is a single-chip L2+ managed Ethernet switch with 26 ports, comprising 24 10/100 ports and two Gigabit Ethernet ports, in a 400-pin BGA package. The device integrates multilayer switching into one package for managed network equipment and supports the combination of Fast Ethernet edge ports with Gigabit Ethernet uplink capacity. A managed Ethernet switch is a networking semiconductor that forwards Ethernet frames between connected devices while adding configurable control, monitoring, and traffic-management functions. In the product hierarchy, BCM5320MKPB belongs to Ethernet switches, interface ICs, and integrated circuits. Its 24 Fast Ethernet ports serve numerous access connections, while the two Gigabit Ethernet ports provide higher-bandwidth links for uplinks, aggregation, or equipment interconnection. Key characteristics include the 26-port 100 Mbps and 1 Gbps configuration, L2+ managed-switch functionality, 400-pin BGA construction, and MSL 1 unlimited floor-life handling. The available part data identifies BCM5320MKPB as the base Broadcom BCM5320M orderable configuration, supplied in a tray. Detailed data for operating voltage, clocking, PHY media support, maximum frame size, temperature limits, and power consumption was not present in the supplied verified records. Architecturally, the BCM5320M family combines a managed switching function with a mixed-rate Ethernet port set in one integrated circuit. This consolidation can reduce the component count and inter-device routing complexity of a managed switch design. The two 1 Gbps ports provide an upgrade path over the 24 10/100 ports, although the exact supported copper or fiber media and optional serialization interfaces require confirmation from the manufacturer datasheet before schematic and layout release. Typical uses include industrial Ethernet switches, network-interface equipment, embedded network appliances, access concentrators, and managed connectivity products. The 24-port Fast Ethernet grouping is particularly relevant to equipment that must aggregate many 100 Mbps links, while the two Gigabit Ethernet ports can serve uplink or expansion duties. The same-port-count comparison should include management features, PHY support, timing, package balls, firmware requirements, and thermal conditions. Design planning should begin with the complete Broadcom reference design, the 400-ball land pattern, supported copper media, and required management interfaces. Because the supplied evidence identifies a 400-pin BGA but does not provide a verified ball map, designers should not infer pin assignments from the orderable code. PCB stack-up, via-in-pad requirements, decoupling, thermal management, and high-speed layout must follow Broadcom's released design guidance. This page consolidates the verified port configuration, package information, lifecycle-related procurement references, same-family drop-in candidates, comparison parameters, and practical sourcing guidance. It also clearly separates confirmed BCM5320MKPB data from parameters that still require manufacturer documentation, reducing the risk of designing from incomplete distributor metadata.
BCM5320SKPBG - 8-Port 24+2G Managed Ethernet Switch | Broadcom
Broadcom BCM5320SKPBG is an eight-port Layer 2 managed Ethernet switch with 24+2G-class port aggregation in a surface-mount package. The device is categorized as an Ethernet interface controller and is intended for compact network-edge equipment that needs multiple copper Ethernet ports, Layer 2 traffic management, and a space-efficient switching solution. An Ethernet switch IC is a semiconductor that connects multiple network endpoints through integrated physical-layer transceivers, media-access control functions, packet buffers, and forwarding logic. Within the product hierarchy, the BCM5320SKPBG is an Ethernet interface IC, a Layer 2 managed switch, a networking semiconductor, and ultimately an integrated circuit designed for communications equipment. The key configuration is eight Ethernet switch ports with a 24+2G-class data-path description. The 24+2G designation identifies a combined switching arrangement that includes two additional high-speed ports alongside the main port resources. This architecture is useful when a product must combine multiple access ports with higher-bandwidth uplink or aggregation paths without relying on a collection of unrelated external interface devices. The BCM5320SKPBG provides managed Layer 2 functionality rather than functioning only as a basic repeater or hub. Managed switching can support structured frame forwarding, traffic classification, and controlled network segmentation when configured through the system controller. Its implementation should be evaluated against the complete Ethernet feature set, clocking architecture, register interface, copper media requirements, thermal limits, and recovery behavior required by the host product. Typical equipment categories include eight-port network switches, industrial Ethernet gateways, building-control equipment, access-network terminals, surveillance-system edge devices, and embedded network appliances. The eight-port architecture consolidates a substantial amount of copper connectivity into one switching component while leaving the host processor responsible for system configuration, management policy, and higher-level services. The primary engineering consideration is ensuring that the PCB land pattern, magnetics, reference clocks, power rails, and thermal design match the Broadcom datasheet exactly. Because copper Ethernet interfaces are sensitive to return paths and impedance control, place the device according to the manufacturer's reference layout and preserve short, symmetric high-speed connections around the switching and clock circuitry. This product overview combines the Broadcom device identity, published 24+2G eight-port switching information, lifecycle information, and engineering guidance for PCB integration. It also distinguishes documented attributes from parameters that require confirmation from the manufacturer datasheet before schematic release, qualification, or production procurement.
BCM5321MIPB - 24-Port 10/100 + 2-Port GbE L2+ Switch | Broadcom
The Broadcom BCM5321MIPB is a single-chip L2+ managed Ethernet switch with 24 10/100 ports, 2 Gigabit Ethernet ports, and a 400-pin BGA package. It consolidates Ethernet switching, port management, and dual-speed uplink connectivity in one integrated circuit. The verified product information identifies the device as an interface controller from Broadcom Limited and describes its 26-port combination as 24 Fast Ethernet ports plus 2 Gigabit Ethernet ports. An Ethernet switch is a networking semiconductor that receives frames on multiple ports and forwards them toward their destinations using Layer 2 addresses. A managed L2+ switch adds configuration and status functions beyond basic frame forwarding. In the product hierarchy, BCM5321MIPB is an Ethernet switch, a Layer 2 network interface controller, an interface IC, and ultimately an integrated circuit designed for communications equipment. The principal feature is its mixed-speed port arrangement. Twenty-four 10/100 ports support legacy 100BASE-TX endpoints and existing Fast Ethernet infrastructure, while the two 1 GbE ports provide higher-bandwidth uplinks. Consolidating these functions can reduce the number of separate switching devices required in access, industrial, and embedded network systems. The manufacturer description identifies the BCM5321 family as a single-chip L2+ managed switch rather than a general-purpose host processor interface. The 400-pin BGA package provides a high pin count suitable for the device's extensive Ethernet and management connections. Its physical package is a ball grid array in the BGA-400 family, intended for surface-mount assembly. Because the verified data does not provide the individual ball assignments, electrical limits, clocking details, memory configuration, or management interfaces, designers should obtain the official manufacturer datasheet before defining the PCB footprint, power architecture, or pin-level circuit. Typical applications include industrial Ethernet switches, network-interface equipment, embedded communications platforms, and access systems that combine many Fast Ethernet endpoints with one or two Gigabit uplinks. In these systems, the 24-port Fast Ethernet section can connect local devices while the two Gigabit ports can connect an upstream backbone or management network. The practical benefit is fewer discrete switching blocks and a compact mixed-speed Ethernet interface. The primary design consideration is footprint verification. A 400-pin BGA requires exact ball mapping, escape routing, layer-count planning, and assembly-process confirmation from the manufacturer datasheet. Power-supply sequencing, high-speed copper characteristics, thermal performance, and magnetics integration also require device-specific guidance rather than assumptions based only on the distributor description. This page consolidates the verified Broadcom product description, distributor listings, package information, sourcing context, application guidance, and drop-in replacement assessment. It also separates confirmed BCM5321MIPB attributes from unavailable technical data so procurement and hardware teams can identify what must be confirmed from the manufacturer datasheet before committing to a design.
BCM5324MIPB - 24-Port 10/100 + 2-Port GbE Managed Switch | Broadcom
Broadcom BCM5324MIPB is a single-chip Layer 2 managed Ethernet switch with 24 10/100 ports and 2 Gigabit Ethernet ports, supplied in a BGA package. The device consolidates copper-port switching into one integrated circuit, making it suitable for managed network-edge equipment that needs both legacy 10/100 connectivity and two higher-bandwidth Gigabit Ethernet links. Its Layer 2 classification identifies it as a transparent-bridging network switch rather than a Layer 3 routing platform. An Ethernet switch is a networking semiconductor that receives frames on one port, examines the destination MAC address, and forwards traffic to the appropriate output port. A managed switch adds configurable functions that require device supervision, such as port control, monitoring, and traffic management. The BCM5324MIPB combines 24 Fast Ethernet ports with 2 Gigabit Ethernet ports in one package, providing a consolidated switching solution for access equipment, embedded systems, and industrial network interfaces. The key verified specifications are the 24-port 10/100 network interface, 2-port Gigabit Ethernet interface, managed Layer 2 operation, and BGA package. Broadcom markets the device as a single-chip L2 managed switch. Exact switching capacity, MAC-table capacity, PHY integration, package dimensions, pin assignments, voltage requirements, operating-temperature limits, and electrical timing values were not present in the supplied web results and therefore require confirmation from the manufacturer datasheet before layout or qualification. The mixed 10/100 and Gigabit Ethernet port arrangement is useful where installed edge devices still use 100BASE-TX while uplink, aggregation, or backhaul connections require 1GbE. It may be evaluated in managed network appliances, industrial Ethernet equipment, telecom access hardware, embedded routers, and video or surveillance network interfaces. Placement of the two Gigabit Ethernet ports can simplify designs that need dedicated uplink capacity without adding another switching device. Engineering review should begin with the exact Broadcom datasheet and board-design reference. Designers need to confirm the BGA land pattern, pin-to-pin signal mapping, required clocking, transceiver or PHY integration, copper magnetics interface, supply rails, reset requirements, management interface, and thermal limits. The distributor descriptions establish the core port mix but do not provide enough information to approve a PCB footprint or assert drop-in compatibility with another switch. This page combines the verified distributor descriptions, an explicit comparison against same-family Broadcom candidates, procurement links, and practical validation points. It distinguishes confirmed facts from unverified details so engineers can identify what the available data establishes and which specifications must still be obtained before committing to a design.
BCM5324MIPBG - 24+2G Managed Ethernet Switch | Broadcom
The Broadcom BCM5324MIPBG is a single-chip managed Ethernet switch with 24 10/100 ports and two Gigabit Ethernet ports. It consolidates Layer 2 switching, copper-port aggregation, and two higher-speed uplinks into one integration-focused device for access-layer and edge-networking equipment. A managed Ethernet switch is a network-semiconductor device that forwards Ethernet frames between wired ports while providing management functions above the basic physical-layer transceiver. In the switching hierarchy, the BCM5324MIPBG belongs to the Ethernet interface and controller class, sits above PHY transceivers, and serves as the central switching element for a multi-port network node. The confirmed headline configuration is 24 10/100 Ethernet ports plus two 1G ports. This mixed-port architecture lets equipment designers connect numerous 100-Mbit devices while reserving two Gigabit Ethernet links for uplinks, storage, or higher-bandwidth network segments. The L2+ managed-switch description indicates that the device performs Layer 2 forwarding with additional managed-switch capability beyond a basic unmanaged switch. The BCM5324MIPBG is suited to industrial Ethernet equipment, access concentrators, embedded network appliances, and communications infrastructure where a high port count reduces the number of discrete switching devices required. Consolidating twenty-six ports into one switch simplifies board partitioning, enclosure design, and network topology while supporting both legacy 10/100 endpoints and Gigabit uplinks. Engineering decisions should focus on the electrical and thermal characteristics of the exact package revision, the required magnetics or integrated-PHY arrangement, and the interface exposed by the parallel or serial processor interface. Check the manufacturer datasheet for the complete pin description, recommended power topology, clock requirements, and supported PHY implementation before laying out a board. This page separates the confirmed 24+2G managed-switch configuration from parameters that require direct verification. It also identifies the application roles suited to this port count and documents the engineering questions that should be answered from the device data sheet, including thermal design, interface timing, and package-level layout.
BCM5324MKPB - 24-Port Managed Ethernet Switch | Broadcom
Broadcom BCM5324MKPB is a single-chip L2+ managed Ethernet switch with 24 10/100 ports and 2 Gigabit Ethernet ports in a 400-pin BGA package. It consolidates multiport switching and Ethernet interface control into one dedicated networking semiconductor, providing a compact solution for equipment that needs numerous copper Ethernet connections plus faster uplink or network-backbone ports. An Ethernet switch is a networking semiconductor that receives Ethernet frames on one port and forwards them toward their destination port. An L2+ managed switch performs this Layer 2 forwarding function while adding network-management capabilities. BCM5324MKPB therefore belongs to the hierarchy Ethernet switch → managed Ethernet switch → L2+ switching IC → interface and networking semiconductor. It is suited to industrial, communications, and embedded systems requiring more ports than a conventional multi-port network interface controller. The principal verified specifications are 24 Fast Ethernet ports, 2 Gigabit Ethernet ports, L2+ managed-switch operation, and single-chip integration. These features allow a design to replace separate switching components, reduce board-level interconnect complexity, and preserve a consistent Ethernet front end. The two Gigabit Ethernet ports can provide higher-bandwidth links than the 10/100 ports, although exact uplink bandwidth, latency, and media support require confirmation from the manufacturer datasheet. Technically, the BCM5324MKPB is positioned as a dedicated Ethernet interface and switching IC rather than a general-purpose processor. Its mixed port arrangement supports equipment with many endpoint connections, such as access equipment, embedded controllers, or communication systems. Exact switching capacity, MAC address table size, packet rates, PHY integration, operating voltage, clock requirements, and management features are not included in the supplied verified records and should be obtained from the manufacturer datasheet before design release. Typical uses include industrial Ethernet gateways, communications equipment, access-control systems, embedded network controllers, and data-acquisition systems. In these applications, the 24 Fast Ethernet ports connect sensors, computers, cameras, or service equipment, while the 2 Gigabit Ethernet ports provide higher-speed connectivity to an upstream switch or network backbone. System partitioning depends on traffic type and performance requirements that are not quantified in the available data. The primary design precaution is to verify the exact package pinout, power rails, reference clock, magnetics, thermal limits, and supported media before schematic capture. A 400-pin BGA also requires careful PCB escape routing and assembly-process qualification. Because the provided web evidence does not expose a verified pin-by-pin assignment or complete electrical table, engineers should treat the manufacturer datasheet as the controlling source. This product page consolidates distributor availability, port-configuration facts, package information, and related switch references into an engineering-oriented summary. It also distinguishes verified facts from missing technical data, helping designers identify whether BCM5324MKPB fits a new board without relying on incomplete distributor descriptions.
BCM5324MKPBG - 24+2G Managed Ethernet Switch | Broadcom
The Broadcom BCM5324MKPBG is a single-chip Layer 2+ managed Ethernet switch with 24 10/100 ports and two Gigabit Ethernet ports in a 400-BGA package. It combines integrated Fast Ethernet and Gigabit Ethernet PHY functions with an SPI interface for host configuration and control, providing a consolidated solution for embedded networking equipment. An Ethernet switch is a network-semiconductor device that connects multiple Ethernet endpoints and transfers frames according to Layer 2 addressing. The BCM5324MKPBG sits within the broader hierarchy of Ethernet controllers, interface controllers, networking semiconductors, and integrated circuits. By integrating 24 Fast Ethernet PHY ports, two Gigabit Ethernet PHY ports, switching logic, and management functions, it reduces the component count required for industrial gateways, access equipment, and embedded Ethernet platforms. The principal port configuration is 24 10/100BASE-T/TX ports plus two 10/100/1000BASE-T/TX ports, all integrated into the switching device. Its SPI interface supports communication with a host processor for configuration, control, and status functions. The 400-BGA package is designed for compact, high-density board layouts but requires careful ball-layout, power-supply, thermal, and signal-integrity implementation. Exact dimensions, voltage ratings, clock requirements, and management-feature details must be confirmed against the manufacturer datasheet before schematic release. The BCM5324MKPBG is suited to networks that combine many 100 Mb/s endpoints with high-speed uplinks. A typical implementation places the switch beside a host processor or embedded system-on-chip, connects the processor through the SPI interface, and routes endpoint traffic through integrated copper Ethernet PHYs. This arrangement is useful when the enclosure requires many Ethernet ports without deploying a collection of discrete PHY devices and a separate switching ASIC. Typical applications include industrial Ethernet gateways, embedded routers, network interface controllers, building-automation controllers, test equipment, and managed access appliances. The 24 Fast Ethernet ports suit equipment with legacy or cost-sensitive 100 Mb/s links, while the two Gigabit ports can connect an uplink, storage segment, or higher-bandwidth aggregation port. Host firmware can use the SPI management path to configure ports, monitor status, and support product-specific management behavior. Hardware design should begin with the manufacturer pinout and reference circuit because the 400-BGA footprint requires exact ball assignment, layer-transition, and decoupling decisions. Separate analog, digital, and I/O supply domains should follow the datasheet point-of-load guidance. High-speed differential Ethernet pairs need controlled impedance, continuous reference planes, minimized return-path discontinuities, and connector or magnetics placement consistent with the internal PHY architecture. This product page consolidates the exact port configuration, package information, interface details, application guidance, design cautions, and sourcing information for BCM5324MKPBG. It also distinguishes documented device characteristics from replacement decisions, helping engineers verify PCB compatibility, management requirements, and supply availability before committing a production design.
BCM5324SKPB - 24+2G Managed Ethernet Switch | Broadcom
Broadcom BCM5324SKPB is a Layer 2 managed Ethernet switch with 24 Fast Ethernet ports and 2 Gigabit Ethernet ports, supplied in a Broadcom surface-mount package. The verified product listings identify the device as a 24+2G L2 Ethernet managed switch, while its integrated switching functionality is intended for consolidating copper-network connections in access, enterprise, industrial, and communications equipment. Its combination of 24 10/100 ports and 2 Gigabit Ethernet ports provides a practical path for linking slower legacy endpoints to higher-bandwidth uplink or backbone connections. An Ethernet switch is a networking semiconductor that receives frames on one port and forwards them toward the appropriate destination port according to Layer 2 addresses. A managed Layer 2 switch adds configuration and monitoring capabilities beyond basic unmanaged Ethernet switching. This hierarchy places the BCM5324SKPB within switching silicon, Ethernet interface devices, communication ICs, and broader network-interface semiconductors used to connect computers, industrial controllers, IP cameras, access equipment, and other Ethernet-enabled products. The primary verified feature is the BCM5324SKPB's 24+2 port arrangement: 24 Fast Ethernet ports alongside 2 Gigabit Ethernet ports. This mixed-speed design can support numerous 100 Mbit/s devices while preserving two ports for Gigabit Ethernet uplink, server, or aggregation links. The verified listings do not provide switching fabric throughput, MAC-table capacity, packet rates, latency, supported PHY standards, power consumption, clocking requirements, or management-feature details; those values must therefore be confirmed in the manufacturer documentation before final design sign-off. The BCM5324 family is described in the verified search results as a single-chip Layer 2 managed switch with 24 10/100 ports and 2 Gigabit Ethernet ports. A single-chip integration can reduce component count and simplify the relationship between the Ethernet physical-layer interfaces and the internal frame-processing engine. Exact internal architecture, process technology, register organization, and interface timing cannot be established from the supplied excerpts and should not be inferred from the distributor summaries. Typical deployment opportunities include unmanaged or managed access switching, industrial Ethernet gateways, factory-floor equipment aggregation, IP-camera and surveillance networks, building access systems, and compact communications appliances. The 24 copper ports are particularly useful where many 100 Mbit/s devices must be connected locally, while the 2 Gigabit Ethernet ports can serve high-speed uplinks. Actual support for features such as VLANs, spanning tree, QoS, IGMP, loop prevention, and managed configuration must be verified against the applicable Broadcom documentation before specifying these functions. PCB design should not begin from distributor snippets alone. Obtain the official BCM5324SKPB datasheet and verify the exact package drawing, exposed-pad requirements, pin assignment, recommended PHY magnetics, reference clock, supply rails, decoupling network, thermal performance, and software-support expectations. Because the supplied data does not expose those implementation details, engineers should preserve the manufacturer's reference schematic and layout wherever possible rather than relying on inferred values. This product record combines verified port-count information with distributor, aggregator, and cross-reference sources. It also clearly separates confirmed characteristics from unavailable technical data, avoiding unsupported performance claims. The accompanying FAQ, application guidance, and source links support initial component discovery, while final electrical, thermal, software, and lifecycle qualification remains dependent on the manufacturer documentation.
BCM5325EIQMG - Six-Port Ethernet Switch | Broadcom
The Broadcom BCM5325EIQMG is a six-port Ethernet switch controller with integrated packet buffers, PHY transceivers, MACs, address management, and a non-blocking switch fabric, supplied in a 128-pin surface-mount package. It is based on 0.18-μm CMOS technology and is pin-compatible with the Broadcom BCM5325M ROBOSwitch family. The device complies with IEEE 802.3, IEEE 802.3u, and IEEE 802.3x, supporting Ethernet switching designs with integrated copper-network connectivity. An Ethernet switch controller is a semiconductor that coordinates traffic between multiple network ports. In the product hierarchy, a switch controller is an Ethernet interface IC, then a networking semiconductor and a communications integrated circuit. Unlike a discrete switch assembled from separate PHYs and a switching block, the BCM5325E consolidizes the switch fabric, physical-layer transceivers, MACs, packet buffering, and address-management functions into one CMOS device, reducing board-level integration and simplifying multiport network design. The principal feature is its six-port architecture with integrated PHY transceivers. IEEE 802.3 support covers conventional Ethernet operation, while IEEE 802.3u adds Fast Ethernet operation and IEEE 802.3x provides flow-control support. Combining six ports, packet buffers, and a non-blocking fabric in one 128-pin package makes the BCM5325E suitable for compact Ethernet switches, gateways, and embedded networking equipment where board area and external-component count are important. The BCM5325E uses a 0.18-μm CMOS implementation to integrate the switch system on a single device. Its internal architecture separates port reception and transmission from the non-blocking switch fabric while using dedicated packet buffers and address management. This integration allows a five-port or six-port design to share centralized switching resources, although the final port configuration depends on the product variant, board design, firmware, and system requirements documented by Broadcom. Typical applications include five-port and six-port Ethernet switches, network-interface equipment, broadband access products, and industrial Ethernet gateways. The integrated PHY transceivers can simplify designs that require several 10/100-class Ethernet ports close to a system processor. Products requiring different media types, higher port counts, or additional physical layers may need companion Ethernet interface devices or a different switch architecture. PCB design should prioritize clean supply distribution, controlled-return paths, and high-speed signal integrity around the switch and PHY circuitry. Review the BCM5325E Product Brief and package documentation for the exact pin assignments, exposed-pad requirements, clocking, reference components, and layout constraints before releasing a new board; do not infer these details from the generic 128-pin package description. This product page brings together the Broadcom product-brief architecture, IEEE support, package information, application guidance, and sourcing information in a format intended to accelerate initial device selection. The BCM5325EIQMG is best evaluated as an integrated multiport Ethernet switching solution rather than as a general-purpose processor or a discrete network transceiver.
BCM5325EKQMG - Five-Port 10/100 Ethernet Switch | Broadcom
The Broadcom BCM5325EKQMG is a five-port 10/100 Ethernet switching controller with an integrated sixth-port uplink interface, implemented in a 128-pin QFP package measuring 14 mm by 20 mm. It combines Ethernet PHYs, MACs, packet buffers, address management, and a non-blocking switch fabric in one CMOS device, making it suitable for compact SOHO routers, gateways, and embedded Ethernet systems. An Ethernet switch controller is an interface integrated circuit that connects multiple copper-network ports to a host or uplink while buffering and forwarding Ethernet frames. Within the product hierarchy, BCM5325EKQMG is a five-port 10/100 Ethernet switch, also described as a ROBOswitch, and belongs to the broader category of interface ICs and network semiconductors. Its integrated architecture reduces the number of discrete PHY and switching components required around a network processor or communications processor. Key characteristics include five 10/100 network ports, a sixth-port feature-enhanced counterpart described in the Broadcom BCM5325E product brief, on-chip packet buffering, integrated PHY transceivers and MACs, and address management. The device uses 0.18-µm CMOS technology and complies with IEEE 802.3, IEEE 802.3u, and IEEE 802.3x. The QFP-128 package is identified as a 14 mm by 20 mm surface-mount package. The BCM5325E family combines the functions of a high-speed switching system in one silicon device. IEEE 802.3 defines Ethernet framing, IEEE 802.3u defines Fast Ethernet operation, and IEEE 802.3x defines full-duplex flow control. These functions allow the switch fabric to coordinate traffic among attached network nodes while offloading basic packet handling from the system processor. Typical applications include SOHO routers, residential gateways, embedded gateways, Ethernet switches, and industrial or commercial network equipment with copper ports. It is especially relevant to compact designs that need several 10/100 interfaces but do not require multi-gigabit Ethernet. The integrated PHYs and switch fabric can simplify board partitioning while preserving a clear path from each copper port through the MAC and packet-buffer layers. A primary design consideration is the legacy 10/100-only interface: it suits established Fast Ethernet products but cannot provide the throughput of 1000BASE-T ports. PCB implementation should follow the Broadcom pin and layout guidance, provide appropriate Ethernet magnetics and line-side routing, and validate signal integrity, power sequencing, thermal performance, and loopback behavior before production. This page combines Broadcom product-brief information, package and standards details, replacement guidance, application analysis, and practical design notes. It also highlights the difference between the BCM5325M-based BCM5325EKQMG and the feature-enhanced, pin-compatible BCM5325E six-port implementation for engineering planning.
BCM53282MKPBG - 8FE + 2GE Ethernet Controller | Broadcom
The Broadcom BCM53282MKPBG is an Ethernet interface controller combining eight Fast Ethernet PHYs, two Gigabit Ethernet PHYs, GMII/RGMII connectivity, and an MII/RvMII interface in a 400-pin BGA package. It consolidates copper Ethernet connectivity into one device for equipment requiring multiple 10/100M and 10/100/1000M network ports. An Ethernet controller is an interface integrated circuit that connects a host or switching system to physical Ethernet networks. It belongs to the interface IC hierarchy, alongside Ethernet PHYs, network controllers, and communication semiconductors. Physical-layer transceivers handle cable signaling, while controller functions organize port activity and expose data through standardized digital interfaces such as GMII, RGMII, MII, and RvMII. The eight-FE configuration supports copper Fast Ethernet ports, while the two-GE configuration adds two Gigabit Ethernet channels. GMII and RGMII provide parallel or reduced-width digital connections to a MAC or switch fabric, while MII and RvMII address designs using legacy or reduced MII-style interfaces. This interface mix supports consolidated network-port designs without requiring eight separate PHY packages. The Broadcom BCM53282 combines heterogeneous port rates in one controller and is identified as a RoHS3-compliant interface IC. Its 400-pin BGA package supports dense multilayer PCB layouts, but it also demands careful escape-routing, layer-transition, and via-pattern planning. Differential Ethernet pairs require uninterrupted routing between the PHY and the external magnetics or network connector. Typical uses include industrial Ethernet gateways, multi-port network appliances, embedded switching platforms, communications equipment, and industrial control systems with mixed Fast Ethernet and Gigabit Ethernet connectivity. The MII/RvMII interface is particularly relevant to legacy network architectures, while GMII/RGMII supports higher-throughput digital connections to a host processor or switching fabric. Designers should assign every power, ground, clock, reset, management, and serial interface signal from the manufacturer pin-description table before layout. Differential pairs should remain length-balanced and reference a continuous ground plane, while BGA escape routing should be planned before the first PCB revision. Confirm thermal performance, interface voltage levels, and external transceiver requirements against the manufacturer datasheet. This product page consolidates the confirmed port configuration, supported interface types, package information, sourcing details, and engineering guidance into one design-oriented reference. It also distinguishes confirmed drop-in substitutions from parts that merely perform a similar Ethernet function and therefore require PCB or firmware validation.
BCM5358SSC01 - 2x2 10/100 Simultaneous Dual | Broadcom
The Broadcom BCM5358SSC01 is a 2x2 10/100 simultaneous dual interface device designed for network equipment requiring two simultaneous Ethernet channels in a compact surface-mount package. The device is identified as a Broadcom Limited component and is listed with a 2x2 package format. An Ethernet interface IC is a semiconductor device used to connect a communications system to a physical network medium. In this product category, the device family sits within the broader hierarchy of interface integrated circuits, network interface controllers, Ethernet connectivity components, and semiconductors. A simultaneous dual 10/100 device can provide two independent 10/100 Ethernet paths while occupying one compact IC package, which can simplify board partitioning in routers, switches, gateways, and embedded network appliances. The central feature of BCM5358SSC01 is its 2x2 10/100 simultaneous dual configuration. The 10/100 designation indicates support for 10 Mb/s and 100 Mb/s Ethernet operation, while the simultaneous dual description indicates two parallel interface channels rather than a single-port arrangement. The compact 2x2 package format can assist designers in reducing board area and consolidating repeated network connections in space-constrained systems. The BCM5358SSC01 is associated with Broadcom’s Ethernet interface portfolio and appears in distributor catalogs as an Interface IC, consistent with its role as a network connectivity device. Its internal architecture, electrical ratings, pin functions, media interface, clocking requirements, operating temperature limits, and power-consumption values should be confirmed in the manufacturer datasheet before committing a new PCB layout. Typical applications for this device include compact routers, Ethernet switches, home gateways, network interface cards, embedded communications equipment, and industrial or commercial network products that require two simultaneous 10/100 connections. The dual-channel architecture is particularly useful when a product requires two adjacent network ports without using two separate single-channel interface devices. The most important design step is to verify the exact pinout, reference clock, magnetics interface, voltage rails, and PHY or MAC connection requirements. Use the manufacturer pin-description table and recommended application circuit when assigning PCB traces. Confirm that the 2x2 package matches the board footprint and that the device’s thermal and power requirements are acceptable for the intended enclosure and ambient temperature.
BCM5387IFBG - 8-Port SGMII Ethernet Switch | Broadcom
Broadcom BCM5387IFBG is an 8-port SGMII Ethernet switch controller with integrated media access controllers, address management, packet buffering, and a non-blocking switch controller in a monolithic 0.13 µm CMOS device. The BCM5387IFBG supports the IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, and IEEE 802.3x specifications identified in the manufacturer preliminary data sheet. An Ethernet switch controller is an interface IC that manages frames between network ports and an upstream system. In this product hierarchy, the BCM5387 belongs to Ethernet switches, interface ICs, and integrated circuits. Its eight-port SGMII architecture allows multiple Gigabit Ethernet connections to be consolidated behind a high-speed serial interface, reducing the number of physical network interfaces required in a multi-port networking system. The principal verified feature of the BCM5387IFBG is its 8-port SGMII switching capability. The device integrates the packet buffer, eight media access controllers, address management, and the non-blocking switch controller into one monolithic IC. This integration reduces the external component count required to implement a multi-port switching subsystem while retaining centralized frame handling and MAC control functions. The BCM5387 is manufactured using 0.13 µm CMOS technology. That process information comes from the preliminary manufacturer data sheet and identifies the device as a highly integrated high-speed switch solution. The supported Ethernet specifications include conventional Ethernet, Fast Ethernet, 1000BASE-T-related operation described by IEEE 802.3ab, and IEEE 802.3x MAC-control operation. Detailed electrical limits, clock requirements, register defaults, and transceiver characteristics are not included in the supplied web data. Typical uses include eight-port Gigabit Ethernet aggregation, industrial network gateways, managed network equipment, set-top and customer-premises networking, and centralized port switching. The SGMII interface is particularly useful when the system needs a compact digital interface between the switch controller and external physical-layer transceivers rather than integrating copper and fiber PHYs inside the switching IC. Designers should treat the available document as preliminary and verify the production device's complete pin list, power rails, clocking, reset requirements, and electrical characteristics before layout release. Because the supplied sources do not identify the exact BCM5387IFBG package or provide a complete pinout, the package and pin data remain unresolved rather than being inferred from the orderable part number. This page consolidates the verified distributor and manufacturer-document information available as of October 28, 2026, and separates confirmed facts from unresolved engineering data. It also records pricing observations, application context, design cautions, and the absence of independently verified drop-in replacements, helping engineers assess sourcing and validation work before committing the legacy switch controller to a new design.
BCM5387KFBG - 8-Port 5GbE SGMII Switch | Broadcom
Broadcom BCM5387KFBG is an 8-port Ethernet switch with integrated SerDes, SGMII connectivity, and an SPI control interface, supplied in a 256-BGA package measuring 17 mm by 17 mm. The verified distributor information identifies the device as a 5GbE port switch, while the Broadcom product data describes its broader role as an Ethernet switch controller for multi-port network equipment. An Ethernet switch controller is an integrated circuit that coordinates traffic between multiple physical network ports. It belongs to the hierarchy of Ethernet interface integrated circuits, network interface controllers, interface semiconductors, and broader communication semiconductors. In this product, an integrated SerDes provides the physical-layer signaling path, SGMII supplies a serial Gigabit Ethernet interface, and SPI provides a host-processor control connection. The principal verified feature set includes eight switch ports, 5GbE-class operation, integrated SerDes, SGMII support, and SPI control. These features make the BCM5387KFBG relevant to compact network appliances, access equipment, industrial Ethernet systems, and other designs requiring multiple high-speed Ethernet ports. Its 256-BGA package supports dense PCB layouts, but it also requires careful escape-routing, power-plane design, and thermal analysis because of its fine ball-grid-array construction. The integrated SerDes architecture reduces the need for separate PHY-related circuitry when the host system uses compatible SGMII links. SGMII carries Ethernet data and control information over a high-speed parallel or serial interface intended for communication between Ethernet switching or PHY subsystems and a host processor. Exact lane rates, SerDes signaling levels, supported copper media, and internal switching architecture were not exposed in the supplied verified results and must be confirmed in the manufacturer datasheet before design release. Typical implementation targets include eight-port Ethernet switches, industrial network gateways, endpoint controllers, and communication equipment that uses SGMII-connected SerDes links. The SPI interface can support register configuration, initialization, and runtime control from an embedded controller. Actual protocol timing, register access behavior, clock requirements, and software model should be validated against Broadcom's complete technical documentation rather than inferred from distributor summaries. A critical design consideration is the 256-BGA footprint. Signal escape routing, via-in-pad use, multilayer construction, power-plane continuity, and exposed thermal strategies can materially affect manufacturability. The supplied sources do not provide detailed pin assignments, ball maps, recommended capacitors, or thermal resistance, so these values remain unavailable and should be obtained from the authoritative Broadcom documentation before schematic capture. This page consolidates verified distributor availability, the published 12.6817 US-dollar starting price as of 2026-10-29, package identification, interface descriptions, and a rigorous drop-in-replacement assessment. It also separates documented facts from missing engineering data, helping procurement and engineering teams avoid assuming unverified pin compatibility or unconfirmed electrical performance.
BCM5388KPBG - 8-Port Unmanaged Gigabit Ethernet Switch | Broadcom
Broadcom BCM5388KPBG is an 8-port unmanaged Gigabit Ethernet switch controller in the Interface ICs category. The verified product description identifies the device as an 8-port unmanaged GE switch, while distributor listings classify it as an interface controller. These details position the part as a network connectivity solution for designs that require multiple Gigabit Ethernet ports without managed-switch features. An unmanaged Ethernet switch provides basic layer-2 frame forwarding between connected devices while automatically learning source MAC addresses. This operating model reduces configuration complexity and can shorten evaluation time in embedded gateways, industrial controllers, digital signage systems, access equipment, and other networked products. The BCM5388KPBG is specifically identified as supporting eight Gigabit Ethernet ports, making it relevant to compact systems that need to consolidate several network links into one switching device. The verified data does not specify PHY integration, supported copper media, upper-layer interfaces, switching fabric throughput, frame-buffer capacity, MAC-address capacity, auto-negotiation behavior, VLAN support, operating temperature, supply voltage, or package dimensions. Those parameters must be confirmed in the manufacturer documentation before the device is specified for a new design. In particular, engineers should verify whether an external magnetics interface is required and whether the host processor connects through an embedded controller interface, a parallel bus, or another serial interface. The KPBG ordering suffix identifies a specific Broadcom orderable configuration, but the supplied snippets do not establish its exact package, pin count, lead-free status, or automotive qualification. Consequently, a board-level footprint cannot be treated as confirmed from the available evidence. Before replacing an existing BCM5388KPBG, compare the complete ordering code, exposed pad requirements, pin names, reference clock, power rails, reset behavior, strap options, and external component recommendations against the applicable datasheet revision. BCM5388KPBG is best considered for unmanaged Gigabit Ethernet aggregation rather than applications requiring VLAN policy, spanning-tree management, packet prioritization, or administrative control. It can simplify a network architecture when eight local links must reach one internal host or uplink. Its suitability depends on matching the verified port count and interface requirements to the target system while confirming all electrical and mechanical details that are absent from the current source excerpts. This page distinguishes verified product facts from unavailable technical fields and explicitly identifies missing data rather than guessing. It also consolidates source links, sourcing guidance, application-fit considerations, and drop-in-replacement constraints. That separation is important because an 8-port unmanaged switch function alone does not prove package, pin, software, or electrical compatibility with another Ethernet switch.
BCM5389IFB - 8-Port SGMII Ethernet Switch | Broadcom
Broadcom BCM5389IFB is an 8-port SGMII Ethernet interface controller integrating a packet buffer, media access controllers, address management, and a non-blocking switch controller in one monolithic 0.13 µm CMOS device. It complies with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, and IEEE 802.3x, supporting the MAC control, pause-frame, and auto-negotiation functions required by industry-standard Ethernet, Fast Ethernet, and Gigabit Ethernet equipment. The device is supplied in a 256-ball BGA package for high-density telecommunications and networking designs. 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.
BCM5389IFBG - 8-Port Gigabit Ethernet Switch | Broadcom
The Broadcom BCM5389IFBG is an 8-port Gigabit Ethernet switch with integrated SerDes in a 256-pin FBGA package. It combines eight 1000 Mb/s SGMII/SerDes ports, one GMII/RGMII/RvMII interface, nine IEEE 802.x-compliant MACs, a 128 KB packet buffer, and support for 9 KB jumbo frames. Its 1.2 V operating supply makes it suitable for compact, power-conscious SOHO and subnet networking equipment. An Ethernet switch is a semiconductor that forwards Ethernet frames between connected ports using dedicated MAC addresses. The BCM5389IFBG belongs to the Ethernet switch hierarchy, where it integrates multiple physical-layer-facing SerDes interfaces with frame-processing logic. This consolidation allows a router, gateway, or subnet switch to support multiple Gigabit Ethernet links without requiring eight separate external switch devices. Its integrated SerDes also reduces board-level interconnect requirements compared with solutions using discrete PHY components. Key features include eight Gigabit Ethernet ports, eight SGMII/SerDes interfaces, one selectable GMII, RGMII, or RvMII interface, and nine compliant MACs. The device supports 128 KB of packet buffering and 9 KB jumbo frames. According to the Broadcom datasheet indexed by the verified sources, it complies with IEEE 802.3u, IEEE 802.3ab, and IEEE 802.3x, including MAC control, pause-frame, and autonegotiation behavior. These standards provide the foundation for Fast Ethernet, Gigabit Ethernet, flow control, and compatible network interoperability. The eighth-generation switch-on-chip architecture is intended to reduce the external component count of multiport network products. Eight integrated SerDes interfaces can expose copper or optical network links through suitable PHY or transceiver circuitry, while the GMII/RGMII/RvMII interface connects the switching system to a host processor or uplink controller. The 256-pin FBGA package supports high-density routing but requires careful escape-routing and via-in-pad or fanout-aware PCB construction. Typical applications include SOHO routers, residential gateways, Ethernet subnet switches, network appliances, and industrial or embedded systems that aggregate multiple Gigabit Ethernet links. The 1.2 V supply and integrated SerDes can simplify power-tree design and reduce PCB area, but the high-density BGA package, multi-rail sequencing requirements, and high-speed signal integrity demands careful reference-plane continuity, decoupling, and connector-return-path planning. The principal design challenge is preserving signal integrity across the short, dense escape paths between the FBGA device and external PHY, magnetics, and connector hardware. Differential SerDes routing should use a continuous reference plane, controlled impedance, minimal stubs, and tightly placed decoupling. Differential pair geometry, via transitions, and return paths must be validated with the actual PCB stack-up and connector models. This page consolidates verified Broadcom and distributor information into an application-oriented engineering summary, including the switch architecture, interface hierarchy, package implications, design cautions, and the one same-family drop-in candidate supported by the supplied cross-reference evidence. Pricing and lead time remain distributor-dependent and should be confirmed for the requested quantity as of the current sourcing date.
BCM5389KFB - 8-Port Gigabit Ethernet Switch | Broadcom
Broadcom BCM5389KFB is an 8-port Gigabit Ethernet switch with integrated SerDes, a 9-Gigabit non-blocking switch fabric, and a 256-BGA package measuring 17 x 17 mm. The verified source data identifies one GMII/RGMII/RvMII interface, nine 802.x-compliant MACs with 9-KB jumbo-frame support, eight SGMII/SerDes interfaces, 128-KB packet-buffer memory, and an SPI control interface. 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.
BCM5389KFBG - 8-Port Gigabit Ethernet Switch | Broadcom
Broadcom BCM5389KFBG is an 8-port Gigabit Ethernet switch with integrated SerDes, an SPI controller interface, and a 256-BGA package measuring 17 x 17 mm. The part is intended for embedded networking equipment that requires multiple Gigabit Ethernet ports and a compact surface-mount implementation. Its documented interface family includes GMII, RGMII, and RvMII, while the distributor records also identify SGMII-related switch functionality. An Ethernet switch is a network-semiconductor device that receives Ethernet frames on multiple ports, selects an appropriate destination port, and forwards traffic across the internal switching fabric. The BCM5389 belongs to the broader hierarchy of Ethernet controllers, interface controllers, network semiconductors, and communication ICs. Integrating eight Gigabit Ethernet ports with SerDes capability can reduce the component count required in gateways, access equipment, and embedded switching platforms. The principal verified characteristics are the eight-port architecture, integrated SerDes, SPI interface, and 256-BGA (17 x 17 mm) package. The component is categorized by DigiKey as an Ethernet Switch with an SPI Interface, while Mouser describes it as an eight-port SGMII switch. These records establish the device's core positioning, but the supplied source snippets do not expose detailed electrical ratings for operating voltage, clock frequency, serializer lane rate, memory interfaces, or physical dimensions beyond the package size. The 256-BGA package is a high-pin-count surface-mount format intended for multilayer printed circuit boards. A successful implementation depends on exact land-pattern, ball-map, power-rail, clocking, SerDes routing, and thermal design information in the manufacturer documentation. Because the available source material provides only a short datasheet description and distributor summaries rather than the complete manufacturer PDF, no unverified switching capacity, latency, PHY count, SerDes standard, or pin-level functions are inferred here. Typical application spaces include carrier-grade and access-network switching, industrial Ethernet gateways, embedded routers, set-top and customer-premises equipment, and other multi-port networking systems. The eight Gigabit Ethernet ports suit centralized connectivity, while integrated SerDes can support backplane or interconnect links when the particular port configuration and supported electrical interface match the system architecture. Designers should verify the exact Broadcom reference design, supported boot and host interface requirements, pin assignments, reference voltage, and power-delivery network before layout release. The BGA package also requires careful escape routing, via arrays, plane splitting, and thermal-via placement. Any substitute must be checked against the complete ball map and electrical tables rather than selected from package dimensions alone. This page consolidates verified distributor pricing and inventory, candidate same-family comparisons, technical gaps, and practical implementation cautions. It adds sourcing context and replacement screening beyond the brief distributor snippets while clearly separating verified facts from parameters that still require confirmation from the complete Broadcom datasheet.
BCM5395MIPBG - 5-Port Ethernet Switch | Broadcom
Broadcom BCM5395MIPBG is a five-port Gigabit Ethernet switch with five integrated physical-layer devices, GMII, RGMII, MII, and RvMII interfaces, non-volatile configuration storage, and interrupt generation in an FBGA package. It consolidates multi-port Ethernet connectivity into a single networking IC and is intended for systems that need local switching without implementing separate physical-layer devices for every port. An Ethernet switch is a semiconductor that receives Ethernet frames on one interface, examines their destination address, and forwards traffic to the appropriate output port. This device sits between the physical layer and the system network architecture: its integrated PHYs connect copper links, while GMII, RGMII, MII, and RvMII provide links to a host processor or another Ethernet controller. Its five-port architecture is suited to gateways, embedded network appliances, industrial controllers, and access equipment with several local Ethernet connections. The defining feature of the BCM5395MIPBG is the integration of five Ethernet PHYs with a five-port switching function. Supported interfaces include GMII, RGMII, MII, and RvMII, allowing the implementation to accommodate different host-clocking and signal-rate requirements. Non-volatile configuration storage retains device settings across power cycles, while interrupt generation allows the host processor to receive event notifications without continuous status polling. The BCM5395 family integrates physical-layer functions, packet buffering, and switching resources within one device. This integration can reduce the number of discrete network components required in an embedded Ethernet design and centralize port management. Because the exact clocking limits, electrical characteristics, operating temperature range, and power ratings depend on the complete manufacturer documentation, engineers should validate those details against the applicable Broadcom datasheet and reference design before releasing production hardware. Typical applications include industrial Ethernet gateways, embedded network appliances, access-point equipment, set-top platforms, and communication controllers requiring several local Gigabit Ethernet links. The integrated PHYs are especially useful where PCB area is constrained and the system requires multiple copper ports connected to a single host interface. RGMII can reduce host pin count in appropriate designs, while MII and GMII support legacy or lower-speed parallel-interface implementations. A successful design must preserve the exact pin assignments, reference clocks, supply sequencing, magnetics isolation, impedance-controlled differential pairs, and decoupling requirements specified for BCM5395MIPBG. Do not substitute a generic Ethernet PHY solely by port count; verify the package ball map, register behavior, interrupt configuration, non-volatile settings, and supported host interface before considering any replacement. This product page organizes the BCM5395MIPBG’s interface capabilities, application guidance, design checks, and verified sourcing information into a compact engineering reference. It also distinguishes documented functions from parameters that require confirmation from the manufacturer’s complete package and electrical documentation.