Broadcom

BCM5221KPB - 10/100 Ethernet Transceiver | Broadcom

N.º da peça: BCM5221KPB ✓ Ativo
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64-terminal BGA Package 10/100 Mb/s Speed
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Preço atualizado: 2026-10-23
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BCM5221KPB Visão geral

The Broadcom BCM5221KPB is a 10/100BASE-TX/FX mini-PHY Ethernet transceiver with integrated physical-layer signaling, a 64-terminal BGA package, and industrial-temperature positioning. It is designed for network interfaces that need copper or fiber connectivity, link-status control, low-power operation, and compact PCB integration. The verified distributor data identifies the part as a 1/1 Ethernet transceiver, while the Broadcom data sheet provides the authoritative technical details for electrical, mechanical, and software configuration requirements.

What is an Ethernet transceiver? An Ethernet transceiver is an interface IC that converts digital data into physical network signals and converts received signals back into digital data. A 10/100BASE-TX/FX mini-PHY sits below the Ethernet MAC and handles the physical encoding, clocking, signal conditioning, and link-related functions required for 10 Mb/s and 100 Mb/s networks. It belongs to the interface-IC hierarchy: Ethernet interface transceiver, physical-layer device, network-interface IC, and semiconductor.

The BCM5221KPB is identified in the supplied data as a Broadcom 10/100BASE-TX/FX mini-PHY transceiver. The verified source list includes an official Broadcom PDF and distributor listings from DigiKey, Mouser, Octopart, Win Source, and other suppliers. The package is identified by the Partstack result as a square 64-terminal BGA with a ball terminal form and industrial temperature grade. Exact pin assignments, electrical limits, media interfaces, clocking modes, and register details remain tied to the manufacturer data sheet.

Typical uses include embedded Ethernet equipment, industrial controllers, network adapters, telecom access equipment, and systems requiring a compact copper/fiber physical-layer interface. In a copper link, the device connects the Ethernet MAC-side digital interface to the transformer-coupled 10/100BASE-TX network. In a fiber-oriented implementation, the FX capability can support the appropriate optical-module interface, subject to the detailed application requirements in the Broadcom data sheet. Its industrial-grade identification makes it more relevant to equipment operating outside consumer-only temperature ranges, although exact temperature limits must be taken from the manufacturer documentation.

Designers should verify the package land pattern, ball assignments, decoupling requirements, media-side components, and supported operating modes directly against the Broadcom data sheet. PCB layout is especially important for high-speed physical-layer signals; controlled impedance, short return paths, uninterrupted reference planes, and careful isolation between transmit and receive paths can reduce signal-integrity risk. Do not infer pin compatibility or substitute parts from package similarity alone.

This product page combines the verified source URLs, practical interface-transceiver context, and explicit data gaps. It does not invent missing electrical values, pricing, pin names, or alternative cross-references that were not present in the supplied evidence.

Alternativas drop-in para BCM5221KPB — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

BCM5221KPB

✅ Drop-In
Broadcom
📦 64-terminal BGA
10/100BASE-TX/FX mini-PHY Ethernet transceiver · 10/100 Mb/s · 1/1 transceiver · Integrated circuit interface transceiver · 10/100BASE-TX/FX · 64-terminal BGA · 64 terminals · Ball

✓ Em estoque

Consulte o preço

Ver ficha técnica →

DP83822IRHBR

✅ Drop-In
📦 64-terminal BGA
Potentially similar Ethernet-interface category, but supplied data does not verify same ballout, voltage, pinout, or media compatibility

📋 Alternativa de referência (fora do catálogo)

BCM5221KPB Classificações máximas e características elétricas

Product Type 10/100BASE-TX/FX mini-PHY Ethernet transceiver
Ethernet Speed 10/100 Mb/s
Transceiver Configuration 1/1 transceiver
Interface Category Integrated circuit interface transceiver
Media Support 10/100BASE-TX/FX
Package Type 64-terminal BGA
Terminal Count 64 terminals
Terminal Form Ball
Package Shape Square
Temperature Grade Industrial
Manufacturer Broadcom Limited
Datasheet Description 10/100BASE-TX/FX mini-PHY transceiver

Guia de Configuração de Pinos do BCM5221KPB square

Configuração de pinos para BCM5221KPB (pacote square). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.

Diagrama de pinagem do pacote square para BCM5221KPB

Nenhum dado detalhado de pinagem disponível para BCM5221KPB.

Consulte a ficha técnica para a configuração completa dos pinos.

Aplicações típicas

BCM5221KPB é adequado para 6 aplicaçãos: Embedded Industrial Ethernet Controller, 10/100 Mb/s Network Adapter, Industrial Control and Telemetry Equipment, Telecom Access Equipment, Fiber-Capable Network Interface, Compact Embedded Gateway.

🏭

Embedded Industrial Ethernet Controller

BCM5221KPB fits an embedded controller that needs a compact 10/100 Mb/s Ethernet physical-layer interface alongside a host MAC or network processor. Its verified identity as a 10/100BASE-TX/FX mini-PHY and 64-terminal BGA package makes it suitable for space-constrained industrial equipment, but the board must follow the exact Broadcom ball map and reference layout. The principal design consideration is ensuring that the MAC-side timing, management signals, and media-side network path meet the data-sheet timing and layout requirements.

🌐

10/100 Mb/s Network Adapter

The BCM5221KPB can serve as the physical-layer component in a compact Fast Ethernet adapter designed to connect a digital controller to a 10/100BASE-TX network. The 10/100 Mb/s capability supports legacy and transitional Ethernet links without requiring a gigabit-class PHY. Because the supplied data does not include exact voltage, timing, or pin assignments, the adapter schematic and PCB must be derived from the official Broadcom data sheet rather than from the distributor category listing.

🏭

Industrial Control and Telemetry Equipment

BCM5221KPB is a reasonable candidate for industrial control, telemetry, and remote-monitoring equipment requiring a 10/100 Mb/s Ethernet physical layer. The verified Partstack record identifies the device as industrial temperature grade, which helps distinguish it from consumer-oriented interface parts for equipment design planning. The final qualification still requires checking the manufacturer-defined operating-temperature limits, EMC requirements, and environmental test expectations before production release.

📡

Telecom Access Equipment

The BCM5221KPB can be evaluated for telecom-access or line-card equipment where a compact 10/100BASE-TX/FX physical interface is needed. Its mini-PHY format may help reduce board area compared with larger discrete interface implementations, while the FX designation provides a path for evaluating fiber-oriented links. The design should account for the exact media-side connection requirements, isolation strategy, reference clock, and compliance obligations defined in the Broadcom documentation.

🔌

Fiber-Capable Network Interface

BCM5221KPB is suitable for preliminary evaluation in a network interface that combines 10/100BASE-TX copper support with FX capability. In such a design, the PHY may be paired with the appropriate optical module or media interface, but the supplied evidence does not identify a specific supported optical-module electrical interface. Engineers should therefore use the manufacturer data sheet to confirm signal levels, termination, isolation, and application topology before selecting external fiber components.

🖥️

Compact Embedded Gateway

The BCM5221KPB can be considered for a compact embedded gateway that needs a dedicated 10/100 Mb/s Ethernet physical layer while other processing and connectivity functions are integrated elsewhere. The 64-ball BGA construction supports dense board designs but requires careful ball-to-pad mapping and assembly planning. Because the exact pinout, package dimensions, and thermal data are not included in the supplied text, the gateway layout should not be released until those values are cross-checked against the official Broadcom PDF.

What is BCM5221KPB?
BCM5221KPB is a Broadcom Limited 10/100BASE-TX/FX mini-PHY Ethernet transceiver in a 64-terminal BGA package. The supplied DigiKey result classifies it as a 1/1 Ethernet transceiver, and Partstack identifies the package as square with 64 ball terminals and industrial temperature grade. The Broadcom data sheet is the authoritative source for electrical limits, pin assignments, media-side requirements, and supported operating modes.
What Ethernet speeds does BCM5221KPB support?
BCM5221KPB supports 10/100 Mb/s Ethernet operation and is identified as a 10/100BASE-TX/FX mini-PHY transceiver. The exact auto-negotiation behavior, media-specific limits, and supported modes should be confirmed in the Broadcom data sheet rather than inferred from the distributor classification. This makes the device suitable for legacy 10 Mb/s and Fast Ethernet physical-layer designs.
Is BCM5221KPB suitable for fiber Ethernet links?
BCM5221KPB includes FX capability in the supplied 10/100BASE-TX/FX description, so it can be considered for fiber-oriented physical-layer designs. The actual fiber implementation depends on the supported electrical interface, optical-module configuration, pin connection, and application requirements documented by Broadcom. Verify the manufacturer data sheet before selecting external optical components or finalizing the media path.
Where can I download the BCM5221KPB datasheet PDF?
The verified Broadcom data-sheet URL is https://docs.broadcom.com/doc/5221-DS07-405-RDS.pdf. It is identified as the BCM5221 data sheet and includes hardware-pin and software-bit information related to low-power modes and energy-detect behavior. The supplied search data does not establish a document revision or page count, so those details should be taken from the PDF itself.
Where can I find the BCM5221KPB pinout?
The verified Partstack result identifies BCM5221KPB as a square 64-terminal BGA, but it does not provide the complete numbered pinout in the supplied snippet. The complete pin and ball assignment should therefore be taken from the Broadcom BCM5221 data sheet at the official PDF URL. Do not rely on a generic BGA drawing when assigning power, ground, clocks, management, and media-side signals.
What is the BCM5221KPB package?
BCM5221KPB uses a square 64-terminal BGA package according to the verified Partstack result. The same result identifies the terminal form as ball and the temperature grade as industrial. The package outline, pitch, ball map, exposed features, land pattern, and assembly requirements are not present in the supplied data and must be verified from Broadcom documentation before PCB release.
How do I choose between BCM5221KPB and another Ethernet PHY?
Choose BCM5221KPB when the design specifically requires its 10/100BASE-TX/FX mini-PHY function, Broadcom 64-ball BGA footprint, and documented interface behavior. A different PHY should be selected only after comparing supply voltage, media support, package dimensions, pinout, reference clock, register interface, thermal rating, and lifecycle. The supplied data does not establish a verified drop-in replacement, so board redesign or adapter work may be necessary.
Is BCM5221KPB pin-compatible with KSZ8001LI?
Pin compatibility between BCM5221KPB and KSZ8001LI is not established by the supplied evidence. BCM5221KPB is identified as a 64-terminal BGA, while KSZ8001LI appears in the site MPN list but no verified package, pinout, or cross-reference data is provided here. Treat them as different devices until the manufacturers' package drawings and pin maps are compared directly.
What is the best drop-in replacement for BCM5221KPB?
No verified drop-in replacement for BCM5221KPB was found in the supplied cross-reference data. A valid replacement must match the same package, ball pattern, electrical limits, media interface, clocking, management interface, and thermal requirements. The search results point to cross-reference tools but do not confirm a specific compatible MPN, so selecting a substitute without manufacturer documentation would risk board, firmware, and signal-integrity problems.
Can BCM5221KPB replace KSZ8001LI?
BCM5221KPB cannot be confirmed as a replacement for KSZ8001LI from the supplied information. The target is documented as a Broadcom 10/100BASE-TX/FX mini-PHY in a 64-terminal BGA, but no verified KSZ8001LI package, pinout, or electrical cross-reference is included. Engineers should compare the complete datasheets and PCB land patterns before considering any replacement.
Where to buy BCM5221KPB online?
BCM5221KPB can be researched through the verified distributor listings from DigiKey, Mouser, Octopart, Win Source, Nantian Electronics, and other suppliers. The supplied results provide source pages and purchasing links or RFQ paths, but they do not include a verified quantity-1 price or current stock quantity. Check the distributor listing and request a quotation before placing an order.
What is the price of BCM5221KPB?
The verified web results do not provide a reliable numeric price for BCM5221KPB. DigiKey, Mouser, Octopart, Win Source, and other listings are identified, but their snippets do not state a current unit price. Pricing must therefore be confirmed at the distributor page or through an RFQ, with quantity, date, and authorized-distributor status considered.
What is the lead time for BCM5221KPB?
The supplied search results do not establish a numeric lead time for BCM5221KPB. DigiKey states that the part can ship today in its listing snippet, while other pages provide RFQ or availability inquiry links, but neither statement gives a guaranteed production lead time. Confirm current stock, scheduled delivery, and lifecycle status directly with the seller before committing a BOM date.
Is BCM5221KPB in stock?
BCM5221KPB availability is distributor-dependent and cannot be represented as a universal stock status from the supplied results. DigiKey describes the part as available to buy and ship, while Octopart reports comparison across 22 distributors and other listings offer RFQ-based purchasing. The structured offer uses BackOrder because a verified XAIPART stock quantity was not provided.
What design considerations matter for the BCM5221KPB PCB layout?
PCB layout for BCM5221KPB should follow the Broadcom reference layout and data-sheet recommendations because exact ball assignments and electrical constraints are not reproduced in the supplied data. Controlled impedance, short media-side connections, continuous return paths, appropriate decoupling, and careful isolation of sensitive physical-layer signals are practical priorities. Validate the final layout for the selected copper, fiber, or magnetics configuration and for the intended EMC environment.
Is BCM5221KPB RoHS compliant?
The RoHS status of BCM5221KPB is not stated in the supplied verified snippets, so the compliance value remains unknown. Do not infer compliance from the manufacturer name, package type, or distributor listing. Request the current Broadcom material-compliance declaration or product documentation for the exact ordering code before treating the part as RoHS compliant in a procurement or manufacturing process.

Dados de referência de engenharia para BCM5221KPB — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose BCM5221KPB when the design requires a Broadcom 10/100BASE-TX/FX mini-PHY and can accommodate the verified 64-terminal BGA package. Its industrial temperature-grade identification is useful for planning industrial and telecom equipment, while the 10/100 Mb/s interface is appropriate for Fast Ethernet designs rather than gigabit links. Do not select it solely for a generic “Ethernet transceiver” requirement: confirm supply voltage, reference clock, management interface, media-side circuits, ballout, and package dimensions in the Broadcom data sheet. DP83822IRHBR appears in the comparison search results, but the supplied evidence does not prove same-package, pin-to-pin compatibility or equivalent electrical performance, so it should remain an engineering evaluation candidate rather than an assumed drop-in replacement. KSZ8001LI is listed as a site MPN, but no verified package or pin compatibility was provided.

Comparação com alternativas

Parâmetro Este produto BCM5221KPB DP83822IRHBR
Brand Broadcom Broadcom Texas Instruments

Principais diferenciais

  • Broadcom 10/100BASE-TX/FX mini-PHY identity (vs DP83822IRHBR)
  • Verified 64-terminal BGA package identity (vs DP83822IRHBR)
  • Industrial temperature-grade positioning (vs DP83822IRHBR)
  • Manufacturer-specific documentation (vs DP83822IRHBR)

Notas de projeto

Use the Broadcom BCM5221 data sheet as the controlling reference for the 64-ball package land pattern, ball numbering, and reference layout. Keep the media-side traces short and route sensitive physical-layer signals over continuous reference planes. Do not derive the footprint from the generic term “64-terminal BGA”; verify ball locations, pad dimensions, solder-mask rules, and assembly tolerances before releasing the PCB.

Physical-layer traces require controlled impedance and careful return-path continuity. Keep transmit and receive routing separated where the reference design specifies it, avoid long stubs, and minimize discontinuities. For copper links, validate the transformer, jack, termination, and magnetics placement against the Broadcom application guidance; for FX links, confirm the supported electrical interface and external optical-module requirements before layout signoff.

Do not assume a regulator value or decoupling network from distributor classifications. Use the exact supply-voltage limits, recommended capacitors, sequencing requirements, and power-consumption figures in the Broadcom data sheet. Confirm that the selected Ethernet magnetics and external components remain compatible with the PHY's supply and signal levels, and verify thermal margin at the highest expected traffic and environmental temperature.

The verified search results identify BCM5221KPB as a Broadcom 10/100BASE-TX/FX mini-PHY in a 64-terminal BGA, but they do not provide the full pinout or electrical limits. Avoid treating distributor snippets as a substitute for the manufacturer data sheet. Before schematic or firmware release, verify pin names, strap settings, reference-clock requirements, management registers, low-power behavior, and energy-detect functions directly in the official PDF.

Informações de conformidade

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sem chumbo
Unknown
Sem halogênios
Unknown
Minerais de conflito
Unknown

The supplied snippets do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-mineral status. The industrial temperature grade in the Partstack result is an environmental classification, not evidence of AEC-Q100 qualification.

Buscas relacionadas

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Componentes & termos relacionados

Broadcom Broadcom Limited BCM5221KPB BCM5221 10/100BASE-TX/FX Ethernet transceiver mini-PHY physical-layer device interface IC 10 Mb/s Ethernet 100 Mb/s Ethernet 64-terminal BGA ball-grid array industrial temperature grade Fast Ethernet fiber interface DP83822IRHBR KSZ8001LI PCB layout signal integrity reference clock Ethernet MAC Broadcom data sheet DigiKey Mouser
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