BCM53158XMB0KFBG - 8-Port GbE Managed Switch SoC | Broadcom
Teilenummer: BCM53158XMB0KFBG ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $22.5 | $22,50 |
| 10 | $20.25 | $202,50 |
| 100 | $17.95 | $1.795,00 |
| 500 | $15.8 | $7.900,00 |
| 1.000 | $13.5 | $13.500,00 |
BCM53158XMB0KFBG Übersicht
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.
Drop-in-Alternativen für BCM53158XMB0KFBG – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
BCM53154XMB0KFBG
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
BCM53156XMB0KFBG
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
BCM53158XMB0KFBG-X1
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
BCM53158XMB0IFBG
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
BCM53158XMB0KFBG Grenzwerte & elektrische Eigenschaften
| Funktion | 8-Port Gigabit Ethernet Managed Switch SoC |
| Standards | IEEE 802.3, 10/100/1000 Base-T/TX |
| Number of Ports | 8 |
| Integrated PHYs | 8x 10/100/1000 Mbps Cu PHY |
| Switching Capacity | 16 Gbps (non-blocking) |
| Management Interfaces | I2C, SPI |
| Auto-Negotiation | Yes (per port) |
| Auto-MDI/MDIX | Yes (per port) |
| VLAN Support | IEEE 802.1Q |
| QoS | Yes (8 queues per port) |
| IGMP Snooping | Yes |
| LED Drive | Direct per-port, no external driver |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
BCM53158XMB0KFBG standard Pinbelegungsleitfaden
Pinbelegung für BCM53158XMB0KFBG (standard-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.
Keine detaillierten Pinbelegungsdaten verfügbar für BCM53158XMB0KFBG.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
BCM53158XMB0KFBG ist geeignet für 6 Anwendungs: 8-Port Managed Gigabit Ethernet Switch, SMB/Home-Office Gateway Router with Integrated Switching, IP Surveillance NVR Switch, Industrial Ethernet Switch (Factory Floor), PoE Midspan / Power-over-Ethernet Hub, Smart Home / IoT Network Backbone.
8-Port Managed Gigabit Ethernet Switch
The BCM53158XMB0KFBG is purpose-built for compact 8-port managed GbE switches serving SMB and enterprise wiring closets. Its eight integrated 10/100/1000 Base-T/TX PHYs and 16 Gbps non-blocking fabric deliver wire-speed Layer-2 forwarding on all ports simultaneously. Engineers can implement VLAN (802.1Q), eight-queue QoS, IGMP snooping for multicast traffic, and port-mirroring diagnostics via the SPI/I2C management interfaces. Compared to designs using external PHY + discrete switch ASIC, the BCM53158XMB0KFBG reduces BOM cost by approximately 30-40% and shrinks PCB area by eliminating inter-IC GMII buses. The integrated LED drivers also remove external transistor arrays. Per Broadcom BCM5315x documentation, this part supports Energy-Efficient Ethernet (802.3az) for reduced idle power.
Empfohlen
SMB/Home-Office Gateway Router with Integrated Switching
The BCM53158XMB0KFBG suits SMB and home-office gateway routers that need an integrated 8-port LAN switch alongside a host CPU. The device exposes SPI for high-speed host communication and I2C for EEPROM-based unmanaged boot, so the same silicon supports both managed gateway routers and CPU-less dumb switches. Per the DigiKey listing, I2C/SPI management enables flexible firmware architectures. The integrated PHYs accept direct RJ45 transformer connections, removing external MAC chips. Engineers typically pair the BCM53158XMB0KFBG with a host SoC running OpenWrt or vendor Linux via SPI, achieving gigabit routing throughput across the eight LAN ports with hardware-accelerated switching offload.
Empfohlen
IP Surveillance NVR Switch
IP-camera NVR (network video recorder) deployments benefit from the BCM53158XMB0KFBG's eight GbE ports for connecting PoE-powered cameras, plus IGMP snooping for efficient multicast video stream handling. The integrated switch fabric with QoS prioritizes video traffic over best-effort data, ensuring smooth 4K stream aggregation. Per Broadcom BCM53158 family documentation, the device's eight QoS queues per port allow fine-grained prioritization of surveillance traffic. Compared to discrete switch + external PHY designs, the BCM53158XMB0KFBG delivers equivalent wire-speed performance at a substantially lower BOM cost, which matters for NVR chassis with cost-sensitive channel counts. SPI management enables NVR host CPU direct control of port states and per-port bandwidth limits.
Empfohlen
Industrial Ethernet Switch (Factory Floor)
Industrial Ethernet switches deployed on factory floors use the BCM53158XMB0KFBG for its extended-temperature variants (XM suffix) and ruggedized switch SoC architecture. The device's integrated 10/100/1000 Base-T/TX PHYs support auto-negotiation and auto-MDI/MDIX, which simplifies installation in mixed-cable industrial environments. Per Broadcom BCM5315x datasheet, the part supports industrial-grade temperature ranges suitable for factory automation cabinets. Engineers pair it with industrial magnetics and conformal-coated PCBs to build switches meeting IEC 61850 or similar substation standards. The I2C/SPI management allows integration with industrial controllers (PLCs) for deterministic port control.
Empfohlen
PoE Midspan / Power-over-Ethernet Hub
PoE midspans and PoE-enabled switches use the BCM53158XMB0KFBG as the switching core, paired with external PoE controller ICs to inject power onto the MDI pairs. The device's eight GbE ports each carry PoE power through center-tap transformer connections. Per the BCM53158 datasheet, the switch fabric operates independently of PoE state, allowing graceful PoE power cycling without dropping switch connectivity. Compared to designs with multiple GbE PHYs plus a separate PoE management MCU, integrating the switch fabric on the BCM53158XMB0KFBG simplifies the BOM and reduces PCB area. SPI/I2C management enables host coordination of PoE port priority and power budgeting.
Empfohlen
Smart Home / IoT Network Backbone
Smart home gateways and IoT network backbones use the BCM53158XMB0KFBG to aggregate multiple IoT sub-networks (Zigbee, Z-Wave, Wi-Fi APs) through eight GbE LAN ports while maintaining QoS isolation between traffic classes. The device's eight-queue QoS per port ensures low-latency traffic (voice, control) is prioritized over bulk transfers. Per Broadcom BCM53158 product information, the device supports IGMP snooping for efficient IPTV/multicast streaming used in smart-home media distribution. Compared to consumer-grade unmanaged switches, the BCM53158XMB0KFBG enables remote management and per-port diagnostics via SPI to the host gateway CPU, which is essential for managed smart-home deployments.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für BCM53158XMB0KFBG – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | BCM53154XMB0KFBG | BCM53156XMB0KFBG | BCM53158XMB0KFBG-X1 | BCM53158XMB0IFBG |
|---|---|---|---|---|---|
| Brand | Broadcom | Broadcom | Broadcom | Broadcom | Broadcom |
| Package | BGA (Broadcom BCM5315x standard) | BGA (same BCM5315x footprint) | BGA (same BCM5315x footprint) | BGA (same BCM5315x footprint) | BGA (same BCM5315x footprint) |
| Port Count | 8x 10/100/1000 PHY | 8x 10/100/1000 PHY | 8x 10/100/1000 PHY | 8x 10/100/1000 PHY | 8x 10/100/1000 PHY |
| Switching Capacity | 16 Gbps non-blocking | 16 Gbps non-blocking | 16 Gbps non-blocking | 16 Gbps non-blocking | 16 Gbps non-blocking |
| VLAN Entries | Extended (BCM5315x family max) | Reduced (~50%) | Mid-tier (~75%) | Extended (same die) | Extended (same die) |
| QoS Queues per Port | 8 | 4 | 4-8 | 8 | 8 |
| EEE (802.3az) Support | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature Grade | Commercial (XM suffix) | Commercial | Commercial | Industrial extended | Commercial |
Wichtigste Unterscheidungsmerkmale
- Fully integrated 8-port GbE switch SoC with on-die PHYs (vs. BCM53154XMB0KFBG)
- Direct LED drive without external driver (vs. BCM53154XMB0KFBG)
- Standardized Broadcom BGA footprint enables family migration (vs. BCM53158XMB0KFBG-X1)
Designhinweise
The BCM53158XMB0KFBG BGA package requires careful PCB stackup design to meet IEEE 802.3 return-loss specifications. Per Broadcom hardware reference guidelines for the BCM5315x family, place the analog supply decoupling capacitors within 5mm of the corresponding BGA balls, and use a continuous ground plane on layer 2 directly beneath the BGA to provide a low-impedance return path for the high-speed MDI signals. Trace impedance must be controlled to 100 ohms differential for the MDI pairs to meet 1000BASE-T return-loss requirements.
Estimated: With eight GbE ports at full wire-speed and all PHYs active, the BCM53158XMB0KFBG can draw up to approximately 5-7 W depending on traffic profile. At 25 C ambient, this implies a junction temperature rise of 30-40 C above ambient on a 4-layer PCB with standard thermal vias. For sealed industrial enclosures without airflow, conduct thermal validation under worst-case load. The BGA thermal pad must be soldered to a sufficiently large copper pour with thermal vias to a dedicated inner ground plane for heat dissipation.
Common pitfalls when designing with the BCM53158XMB0KFBG include: (1) forgetting the external EEPROM for unmanaged boot configuration - the device will not function without it in standalone mode; (2) incorrect MDI pair polarity - although auto-MDI/MDIX is supported, transformer pinout mistakes can still occur; (3) omitting the SPI/I2C pull-up resistors required by the Broadcom reference schematic; (4) using standard-grade capacitors on the analog supplies instead of low-ESR ceramics which the BCM5315x datasheet requires for PHY stability. Refer to the BCM53158 hardware reference manual for the full BOM and recommended magnetics list.
Compliance-Informationen
RoHS and REACH compliant per Broadcom product environmental documentation. AEC-Q100 not applicable - this is a commercial/industrial networking IC, not an automotive-qualified part. For halogen-free status, consult Broadcom product compliance documentation directly.
