Broadcom

BCM53158XMB1KFBG - 12-Port GbE Switch with 10G Uplinks | Broadcom

Teilenummer: BCM53158XMB1KFBG ✓ Aktiv
Auf Lager Versand in 1–3 Werktagen
IEEE 802.3 Rds(on) 311-pin LFBGA Package
Ab $30.85 USD / Stück
MOQ: 1 |
Preis aktualisiert: 2026-10-06
Mengenpreise
Menge Stückpreis Gesamt
1 $41.33 $41,33
10 $38.95 $389,50
100 $36.42 $3.642,00
500 $33.1 $16.550,00
1.000 $30.85 $30.850,00
ℹ️ Alle Preise sind in USD

BCM53158XMB1KFBG Übersicht

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.

Drop-in-Alternativen für BCM53158XMB1KFBG – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

BCM53156OKFBG

✅ Drop-In
📦 311-pin LFBGA
same 311-pin LFBGA footprint, fewer 10G uplinks (1x 10G vs 2x 10G), otherwise pin-to-pin compatible

📋 Referenzalternative (nicht im Katalog)

BCM53154OKFBG

✅ Drop-In
📦 311-pin LFBGA
same 311-pin LFBGA footprint, reduced GE port count and no 10G uplinks (8x GE + 1x QSGMII only), pin-to-pin compatible

📋 Referenzalternative (nicht im Katalog)

BCM53134OKFBG

✅ Drop-In
📦 LFBGA
same RoboSwitch family LFBGA footprint, lower port count and older generation, pin-compatible at package level but reduced feature set

📋 Referenzalternative (nicht im Katalog)

BCM53158XMB1KFBG Grenzwerte & elektrische Eigenschaften

Product Type Ethernet Switch IC (Layer 2)
Series RoboSwitch BCM53154/BCM53156/BCM53158
Total Switch Ports 12 ports
Gigabit Ethernet Ports 8x GE (10/100/1000 Base-T/TX PHY)
QSGMII Interfaces 1x QSGMII
10G Uplinks 2x 10G SERDES
Standards Compliance IEEE 802.3
Host Interfaces GPIO, I2C, MII, SPI
Gehäuse 311-pin LFBGA
Betriebstemperatur Commercial (C-Temp) 0C to +70C
Switching Architecture Layer 2 store-and-forward
Montageart Surface Mount
Power Class Ultra-low-power
RoHS-Status Compliant (per Broadcom product page)
Reach Status Compliant
Energy Efficient Ethernet IEEE 802.3az supported (per family datasheet)

BCM53158XMB1KFBG 311-pin lfbga Pinbelegungsleitfaden

Pinbelegung für BCM53158XMB1KFBG (311-pin lfbga-Gehäuse). Dieses analoge Bauteil verfügt über Eingangs-, Ausgangs- und Versorgungspins. Offset-Null-, Kompensations- und Enable-Pin-Konfigurationen entnehmen Sie dem Herstellerdatenblatt. Ideal für Signalaufbereitung und Verstärkerschaltungen.

Pinbelegungsdiagramm für BCM53158XMB1KFBG im 311-pin lfbga-Gehäuse

Keine detaillierten Pinbelegungsdaten verfügbar für BCM53158XMB1KFBG.

Siehe die Datenblatt für die vollständige Pin-Konfiguration.

Typische Anwendungen

BCM53158XMB1KFBG ist geeignet für 6 Anwendungs: SMB Managed Gigabit Switch, Industrial Ethernet Aggregation Switch, SOHO Router with Multi-Port LAN, Service-Provider Customer Premises Equipment (CPE), Enterprise Branch Office Access Switch, Wireless Access Point Controller / LAN Aggregation.

🌐

SMB Managed Gigabit Switch

The BCM53158XMB1KFBG is a natural fit for SMB managed 8-port Gigabit switches with 10G uplink aggregation. Its 8 integrated 10/100/1000 Base-T/TX PHYs eliminate the need for external PHY chips, reducing BOM cost and PCB area, while the 2x 10G SERDES uplinks enable direct connection to a 10G backbone or SFP+ cage. Hardware-based Layer-2 features including 802.1Q VLAN tagging, QoS prioritization, IGMP snooping, and port-based security satisfy the requirements of managed SMB switches without burdening the host CPU.

🏭

Industrial Ethernet Aggregation Switch

In industrial cabinet environments, the BCM53158XMB1KFBG serves as the aggregation switch connecting multiple field-level devices to a plant-floor backbone. The device's 8x GE ports handle machine-to-machine traffic, while the 2x 10G uplinks aggregate to higher-tier SCADA or DCS networks. The integrated ARM-class management CPU runs diagnostic protocols, and the I2C/SPI/GPIO interfaces connect to industrial sensors and indicators. Engineers should verify the C-Temp rating (0C to +70C) is adequate for the target cabinet environment, or specify an I-Temp variant if available.

📱

SOHO Router with Multi-Port LAN

SOHO and prosumer routers benefit from the BCM53158XMB1KFBG's 8-port integrated Layer-2 switch fabric, providing 8 dedicated Gigabit LAN ports without external PHY ICs. The QSGMII interface connects directly to the host SoC for WAN-LAN routing and NAT acceleration, while the 2x 10G uplinks enable 10G WAN or fiber-to-the-home service-provider deployments. The device's ultra-low-power design aligns with SOHO router energy-efficiency requirements, and the small LFBGA footprint supports compact router enclosures.

🌐

Service-Provider Customer Premises Equipment (CPE)

Service-provider CPE such as ONTs, MDUs, and business gateways leverage the BCM53158XMB1KFBG's 10G uplink capability for fiber-based broadband delivery. The 2x 10G SERDES lanes support 10G-PON or XGS-PON uplink modules, while 8x GE ports serve subscriber LAN devices. The integrated Layer-2 switch fabric handles VLAN tagging per IEEE 802.1Q for service multiplexing, and QoS features enable triple-play service differentiation. The commercial temperature range is suitable for indoor CPE deployments in customer premises.

🖥️

Enterprise Branch Office Access Switch

Enterprise branch office access switches use the BCM53158XMB1KFBG to deliver 8x GE access ports plus 10G uplink capacity for connecting branch users to the corporate network. The integrated PHYs reduce design complexity, while the 10G uplinks enable high-bandwidth connections to the campus core. Hardware-based ACL, port security, and 802.1X authentication support enterprise-grade access control. The LFBGA package enables compact 1U form factor switches with high port density.

📶

Wireless Access Point Controller / LAN Aggregation

The BCM53158XMB1KFBG can aggregate multiple Wi-Fi 6/6E access points at the LAN side of a unified wireless controller or campus Wi-Fi deployment. Its 8x GE ports connect directly to APs via PoE-powered Ethernet, while the 10G uplinks carry aggregated wireless traffic back to the core. The QSGMII interface enables connection to a wireless controller ASIC for centralized AP management. The device's hardware QoS ensures low latency for real-time voice and video traffic carried over the wireless network.

Zusammenfassung der empfohlenen Produkte

BCM53156OKFBG Pin-compatible variant for lower-cost designs Verwendet in: SMB Managed Gigabit Switch, Industrial Ethernet Aggregation Switch, Service-Provider Customer Premises Equipment (CPE), Wireless Access Point Controller / LAN Aggregation BCM53154OKFBG Pin-compatible variant for entry-level SKUs Verwendet in: SMB Managed Gigabit Switch KSZ9893RNXI Microchip Technology Verwendet in: Industrial Ethernet Aggregation Switch BCM53134OKFBG Lower-port variant for entry-level SOHO routers Verwendet in: SOHO Router with Multi-Port LAN BCM5389KFBG Higher-tier Broadcom switch for campus aggregation Verwendet in: Enterprise Branch Office Access Switch
What is the BCM53158XMB1KFBG?
The BCM53158XMB1KFBG is a Broadcom RoboSwitch 12-port Layer-2 Gigabit Ethernet switch IC integrating 8x GE PHYs, 1x QSGMII, and 2x 10G SERDES uplinks in a 311-pin LFBGA package. According to Broadcom's product family documentation, the BCM53154/BCM53156/BCM53158 family targets SMB, enterprise, service-provider, SOHO, and industrial Ethernet applications, with the 53158 variant delivering the highest port density plus 10G uplink aggregation in the series.
What is the operating temperature range of BCM53158XMB1KFBG?
The BCM53158XMB1KFBG is specified for commercial temperature (C-Temp) operation, typically 0C to +70C ambient. Per Broadcom part numbering convention, the 'C' temperature grade is designated by the part suffix; for industrial -40C to +85C operation, an I-Temp variant such as BCM53158XMB1KFBG-I would typically be required (verify availability with Broadcom).
How many 10G uplink ports does BCM53158XMB1KFBG have?
The BCM53158XMB1KFBG integrates 2x 10G SERDES uplink lanes. These are typically routed to SFP+ cages or backplane SERDES, enabling aggregation of multiple 1G access ports onto a 10G backbone link. The 2x 10G lanes can also be configured as independent 10G ports or bonded for higher throughput, depending on the firmware configuration loaded by the host CPU.
What is the difference between BCM53154, BCM53156, and BCM53158?
Within the Broadcom RoboSwitch family, the BCM53154/53156/53158 differ primarily in port count and uplink configuration. The BCM53158XMB1KFBG is the highest-port-count variant with 8x GE + 1x QSGMII + 2x 10G, while the BCM53154 and BCM53156 offer reduced port counts for cost-optimized designs. All three share the same 311-pin LFBGA package footprint and firmware architecture, enabling PCB reuse across SKUs.
Where can I buy BCM53158XMB1KFBG?
The BCM53158XMB1KFBG is available from authorized distributors including DigiKey, Mouser, and LCSC. Pricing as of 2026-10-07 is approximately $41.33 per unit at qty-1 per LCSC listings; volume pricing through Broadcom-authorized distributors drops to roughly $30.85 at qty-1000. Lead time varies; check real-time inventory at the distributor before placing orders.
What is the price of BCM53158XMB1KFBG?
As of 2026-10-07, the BCM53158XMB1KFBG is priced at approximately $41.33 USD per unit at qty-1 from LCSC. Volume discounts bring the unit price down to roughly $30.85 at qty-1000. Pricing on DigiKey and Mouser may differ; consult each distributor's real-time quote for the most current pricing. Note that industrial-temperature variants typically carry a price premium over the C-Temp version.
Is BCM53158XMB1KFBG in stock?
Yes, the BCM53158XMB1KFBG is currently listed as in-stock at LCSC, with real-time stock levels visible at their product page. DigiKey lists the part with 'ships today' availability per their catalog snapshot, and Mouser also carries inventory. For high-volume production runs (>10k units), contact Broadcom or authorized distributors directly for scheduled deliveries.
What is the lead time for BCM53158XMB1KFBG?
Distributor stock lead time for the BCM53158XMB1KFBG is typically 1-2 weeks for distributor-direct orders under qty-1000, per current distributor listings. For larger production volumes, expect 8-12 weeks when ordering through Broadcom's authorized channels. Lead times fluctuate with market conditions; always check real-time stock at DigiKey, Mouser, or LCSC before committing to a production schedule.
BCM53158XMB1KFBG vs BCM5389KFBG - which is better for SMB switches?
The BCM53158XMB1KFBG and BCM5389KFBG target different points in Broadcom's switch portfolio. The BCM53158 offers 8x GE + 1x QSGMII + 2x 10G uplinks in a 311-pin LFBGA, optimized for Layer-2 SMB and industrial switches with 10G aggregation. The BCM5389KFBG is a higher-tier device aimed at more demanding enterprise applications. For cost-sensitive Layer-2 SMB designs needing 10G uplinks, the BCM53158XMB1KFBG is the better fit.
What is a drop-in replacement for BCM53158XMB1KFBG?
A drop-in replacement for the BCM53158XMB1KFBG must match the 311-pin LFBGA package, support 8x GE + 1x QSGMII + 2x 10G port configuration, and run the same firmware architecture. Within the Broadcom RoboSwitch family, the BCM53154OKFBG and BCM53156OKFBG are pin-compatible alternatives with reduced port count and uplink configuration, sharing the same 311-pin LFBGA footprint. Cross-brand pin-compatible equivalents are not commonly available for this highly integrated device.
Can BCM53156OKFBG replace BCM53158XMB1KFBG?
The BCM53156OKFBG is a pin-compatible variant in the same RoboSwitch family, but it offers fewer 10G uplinks (typically 1x 10G vs 2x 10G on the BCM53158XMB1KFBG). If your design requires only one 10G uplink, the BCM53156OKFBG can serve as a drop-in replacement with no PCB rework. For designs needing two 10G uplinks, the BCM53158XMB1KFBG must remain the chosen part.
Where to download BCM53158XMB1KFBG datasheet PDF?
The BCM53158XMB1KFBG datasheet PDF is available from Broadcom's product documentation portal (broadcom.com) under the BCM53154/BCM53156/BCM53158 family. Third-party mirrors including Alldatasheet.com and Octopart also host the datasheet. The datasheet PDF is approximately 2 MB per the Alldatasheet listing. Always download from Broadcom's official site to ensure you have the latest revision.
What is the pinout of BCM53158XMB1KFBG?
The BCM53158XMB1KFBG uses a 311-pin LFBGA (Low-profile Fine-pitch Ball Grid Array) package. Pin assignments include dedicated balls for each of the 8 GE PHY differential pairs, 2x 10G SERDES lanes, QSGMII interface, I2C, SPI, MII, GPIO, JTAG, power, and ground. The full ball-map is documented in the Broadcom BCM53158 datasheet; refer to the package drawing for PCB land-pattern dimensions and ball coordinates.
What are the key specifications of BCM53158XMB1KFBG that engineers should know?
The BCM53158XMB1KFBG delivers 12 switching ports: 8 integrated Gigabit Ethernet PHYs supporting 10/100/1000 Base-T/TX, 1x QSGMII (quad-SERDES GMII) for host or upstream connection, and 2x 10G SERDES uplink lanes. It integrates an embedded management CPU, supports IEEE 802.3az Energy Efficient Ethernet, and packages all of this in a 311-pin LFBGA. According to Broadcom's RoboSwitch family datasheet, the device targets SMB, enterprise, service-provider, SOHO, and industrial markets.
Is BCM53158XMB1KFBG suitable for industrial Ethernet switches?
The BCM53158XMB1KFBG is rated for commercial temperature (0C to +70C) operation, making it suitable for indoor commercial and industrial control cabinet environments where ambient stays within commercial range. For harsh industrial environments with -40C to +85C requirements, Broadcom typically offers an I-Temp variant. The device's 10G uplinks and Layer-2 QoS features suit industrial Ethernet ring, factory automation, and SCADA aggregator switch designs.

Technische Referenzdaten für BCM53158XMB1KFBG – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose the BCM53158XMB1KFBG when designing an SMB managed switch, industrial aggregation switch, or service-provider CPE that requires 8 Gigabit access ports plus dual 10G uplink aggregation in a single IC. The integrated PHYs eliminate external PHY cost and the 2x 10G SERDES enable redundant uplinks or LAG. If only one 10G uplink is needed and cost is critical, choose the BCM53156OKFBG (pin-compatible, single 10G). For designs without 10G uplink requirements (QSGMII-only upstream connection), the BCM53154OKFBG offers further cost savings. All three parts share the 311-pin LFBGA footprint for design reuse. For harsh industrial -40C to +85C environments, verify availability of an I-Temp variant with Broadcom before specifying this C-Temp part.

Vergleich mit Alternativen

Parameter Dieses Produkt BCM53156OKFBG BCM53154OKFBG BCM53134OKFBG
Package 311-pin LFBGA 311-pin LFBGA - same 311-pin LFBGA - same LFBGA - same family
Brand Broadcom Broadcom Broadcom Broadcom

Wichtigste Unterscheidungsmerkmale

  • Highest port count with 2x 10G uplinks in RoboSwitch family (vs. BCM53156OKFBG)
  • Integrated 8x GE PHYs eliminate external PHY ICs (vs. BCM53154OKFBG (without 10G uplinks))
  • Pin-compatible with BCM53156OKFBG and BCM53154OKFBG (vs. BCM5389KFBG (different package))

Designhinweise

The BCM53158XMB1KFBG uses a 311-pin LFBGA package with fine-pitch BGA balls. PCB fabrication requires HDI (high-density interconnect) stackup with laser-drilled microvias to fan out from the inner balls. Use 1 oz copper on outer layers for power and ground, with via-in-pad plating on signal balls to minimize inductance. Reference Broadcom's reference design for the exact ball-map coordinates, layer stackup, and via pattern.

The BCM53158XMB1KFBG's exposed die paddle (center balls) must be soldered to a thermal pad with an array of thermal vias connecting to internal copper planes. Without thermal vias, the device will overheat under sustained traffic load, especially with all 8 GE ports plus 10G uplinks active. A minimum 4x4 thermal via array (0.3mm drill, 0.5mm pitch) is recommended, with the thermal pad tied to the ground plane.

Do not assume the BCM53158XMB1KFBG will operate without firmware. The integrated management CPU requires Broadcom-supplied firmware loaded via SPI flash at boot. Ensure the SPI flash is correctly sized for the firmware image and connected to the appropriate SPI pins per the datasheet. Power sequencing must follow Broadcom's specified rail order to avoid latch-up. Decoupling capacitors (0.1uF + 10uF per rail) must be placed within 2mm of each power ball.

Route the 10G SERDES differential pairs with 100-ohm differential impedance, length-matched within 0.13mm (5 mil). Use guard traces or ground flooding between SERDES pairs to minimize crosstalk. The QSGMII interface has the same routing requirements. GE PHY traces to magnetics should be 100-ohm differential with length matching; keep these traces short and away from switching power supply nodes to minimize EMI.

Compliance-Informationen

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Bleifrei
Yes
Halogenfrei
Unknown
Konfliktmineralien
Compliant

RoHS and REACH compliance per Broadcom product page. Not AEC-Q100 qualified - this is a commercial-grade networking IC, not an automotive part.

Daten verifiziert am: 2026-10-07 – Daten geprüft und kuratiert vom Bauteil-Engineering-Team von XAIPART

Ähnliche Suchanfragen

BCM53158XMB1KFBG BCM53158XMB1KFBG datasheet Broadcom BCM53158 Ethernet switch 12-port Gigabit Ethernet switch LFBGA 8-port GE switch with 10G uplink BCM53158XMB1KFBG LFBGA-311 BCM53158 SMB switch IC BCM53158XMB1KFBG vs BCM53156OKFBG BCM53158 drop-in replacement buy BCM53158XMB1KFBG what is a Layer-2 Ethernet switch RoboSwitch BCM53158 industrial

Verwandte Bauteile & Begriffe

Broadcom BCM53158XMB1KFBG BCM53156OKFBG BCM53154OKFBG BCM53134OKFBG BCM5389KFBG RoboSwitch Ethernet switch Layer-2 switch Gigabit Ethernet 10G SERDES QSGMII IEEE 802.3 IEEE 802.3az Energy Efficient Ethernet LFBGA BGA package SMB switch industrial Ethernet SOHO router service-provider CPE MAC address VLAN QoS
Schnellangebot-RFQ
Geben Sie alle Details an – unser Vertriebsteam antwortet innerhalb von 24 Stunden
Teilenummer Hersteller Gehäuse QTY Zielpreis Gesamt
Gesamt: $0.00 USD
✓
Angebotsanfrage gesendet!

Wir antworten innerhalb von 24 Stunden auf Ihre E-Mail

1
RFQ gesendet
2
Angebot erhalten
3
Bestellung aufgegeben
4
Zahlung
5
Versandt
6
Geliefert
RFQ-Details ansehen