BROADCOM BCM5396IFBG
- 16-port Gigabit Ethernet switch SoC with integrated SerDes — eighth-generation RoboSwitch architecture
- Non-blocking 17 Gbps switch fabric with 256KB on-chip packet buffer and 4K unicast MAC address table
- Sixteen SGMII/SerDes GE ports plus one GMII/RGMII/RvMII uplink — 17 MACs total, 9KB jumbo frame support
- SPI management interface, 4K 802.1Q VLAN, four 802.1p/DiffServ QoS priority queues, 802.1x MAC security
- 0.13µm CMOS, 1.2V core, <1.5W power dissipation, 256-pin FBGA (17mm × 17mm), −40°C to +85°C
Broadcom has been the leading supplier of Gigabit Ethernet switch silicon across enterprise, industrial, and embedded networking applications for over two decades, and the BCM5396 RoboSwitch represents the eighth generation of that architecture — a fully integrated 16-port GbE switch SoC that consolidates switch fabric, SerDes, MAC controllers, address management, and packet buffer into a single 0.13µm CMOS device. The BCM5396IFBG is available from stock at Sparkle Electronics, serving networking OEMs, embedded systems integrators, defense systems engineers, and procurement teams requiring reliable access to Broadcom switching silicon with verified sourcing, full documentation support, and same-day response on pricing and availability inquiries. The I suffix designates the industrial temperature grade, rated for continuous operation from −40°C to +85°C — extending the BCM5396IFBG's applicability beyond commercial environments to ruggedized networking equipment, industrial Ethernet switches, and embedded defense networking subsystems that operate outside the 0°C to +70°C commercial range.
The BCM5396IFBG integrates sixteen SGMII/SerDes Gigabit Ethernet ports alongside a single GMII/RGMII/RvMII uplink interface, forming a non-blocking 17 Gbps switch fabric in a 256-pin FBGA package measuring 17mm × 17mm — one of the smallest form factors available for a 16-port GbE switch at its introduction. Compliance with IEEE 802.3, 802.3u, 802.3ab, and 802.3x standards provides interoperability with all standard Ethernet, Fast Ethernet, and Gigabit Ethernet devices. The SPI management interface enables both standalone unmanaged and fully managed configurations, supporting Spanning Tree, Rapid Spanning Tree, 4K 802.1Q VLAN, MAC-based trunking, and 802.1x MAC security without external management hardware. For programs requiring GbE switching density within a constrained power and footprint budget, the BCM5396IFBG remains a well-established and field-proven specification. Contact Sparkle Electronics to confirm stock and request a same-day quote.
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BCM5396IFBG In Stock: Sourcing Broadcom GbE Switch Silicon with Verified Supply
Broadcom GbE switch SoCs are high-volume, widely deployed components with a well-documented procurement risk profile: supply disruptions, allocation constraints, and end-of-life transitions occur on a product lifecycle schedule that does not always align with program production timelines. The BCM5396IFBG has a long field history in embedded networking and industrial switch applications, and Sparkle Electronics maintains verified stock for procurement teams requiring immediate availability, cross-reference support, or supply continuity planning for ongoing production programs. Whether the procurement requirement is a spot buy for immediate shipment, an RFQ with lead time confirmation, or a longer-term supply agreement supporting a multi-year production schedule, Sparkle Electronics provides same-day response with full lot traceability and documentation. Engineers searching for BCM5396IFBG in stock, Broadcom BCM5396 distributor, BCM5396IFBG pricing and availability, or BCM5396IFBG datasheet and cross reference will find Sparkle Electronics maintains ready inventory. Submit an inquiry for pricing and stock confirmation within 24 hours.
BCM5396IFBG vs. BCM5396KFBG: Industrial vs. Commercial Temperature Grade
The BCM5396 is available in two temperature grades within the same 256-pin FBGA package. The suffix letter before the package designator defines the grade:
| Parameter | BCM5396IFBG | BCM5396KFBG |
|---|---|---|
| Manufacturer | Broadcom | Broadcom |
| Availability | In Stock at Sparkle | Confirm with Sparkle |
| Temperature Grade | Industrial | Commercial |
| Operating Temperature | −40°C to +85°C | 0°C to +70°C |
| Switch Ports | 16× SGMII/SerDes + 1× GMII/RGMII | 16× SGMII/SerDes + 1× GMII/RGMII |
| Switch Fabric | 17 Gbps non-blocking | 17 Gbps non-blocking |
| Packet Buffer | 256KB | 256KB |
| MAC Table | 4K | 4K |
| Package | 256-pin FBGA (17×17mm) | 256-pin FBGA (17×17mm) |
| Core Voltage | 1.2V | 1.2V |
| Power | <1.5W | <1.5W |
The BCM5396IFBG industrial grade is the correct specification for embedded networking equipment operating in extended ambient temperature environments — industrial control systems, ruggedized switch modules, outdoor networking enclosures, and defense ground support equipment where ambient temperatures regularly exceed the 0°C to +70°C commercial boundary. Substituting the commercial KFBG grade in these applications places the device outside its guaranteed operating envelope and introduces a reliability risk that is not acceptable in production hardware.
Architecture Overview: Why Integration Density Defines the BCM5396’s Value
The BCM5396 consolidates every functional block required for a 16-port managed GbE switch into a single die: seventeen MAC controllers, sixteen SGMII/SerDes transceivers, 256KB packet buffer SRAM, the non-blocking switch fabric, address learning and aging logic, QoS classification engine, VLAN processing, and the SPI management interface. This level of integration eliminates the external SRAM, PHY, and glue logic that multi-chip switch designs require, directly reducing BOM component count, PCB layer count, board area, and the associated reliability risk from inter-chip interconnects. For embedded networking applications where PCB real estate is constrained and BOM reduction directly affects unit cost and system reliability, the BCM5396IFBG’s single-chip architecture is a decisive design advantage over equivalent multi-chip solutions.
The 4K 802.1Q VLAN table and four-queue QoS architecture provide the traffic segmentation and prioritization capabilities required for multi-tenant industrial networks and defense network subsystems where management traffic, control plane data, and user payload must be isolated at the switch level. Port-based rate control with 64Kbps granularity enables precise bandwidth allocation per port — a requirement in defense ground support networking where bandwidth reservation for critical control channels cannot be left to best-effort scheduling. For broader networking and communication component requirements, Sparkle Electronics maintains inventory across the full high-speed ADC/DAC and analog and signal chain categories supporting defense networking infrastructure.
Frequently Asked Questions
What does BCM5396IFBG decode to?
BCM = Broadcom chip prefix; 5396 = RoboSwitch 16-port GbE switch SoC product number; I = industrial temperature grade (−40°C to +85°C); F = FBGA package type; BG = 256-pin ball grid array (17mm × 17mm). The BCM5396KFBG is the commercial temperature (0°C to +70°C) equivalent in the same package.
Where can I buy BCM5396IFBG in stock?
Sparkle Electronics maintains ready stock of the BCM5396IFBG for immediate fulfillment. Contact our team for current pricing, available quantity, and confirmed lead time. Same-day response on RFQs — we supply networking OEMs, embedded systems integrators, and defense procurement offices globally. For supply continuity requirements or long-term program support agreements, our procurement team can discuss scheduling and volume commitments.
What is the difference between BCM5396IFBG and BCM5396KFBG?
The only difference is the operating temperature range. The IFBG is industrial grade (−40°C to +85°C); the KFBG is commercial grade (0°C to +70°C). All electrical parameters, switch fabric performance, feature set, and package dimensions are identical. For applications operating in extended ambient environments, the IFBG is the required specification — the KFBG is not a valid substitute outside its rated temperature range.
Does BCM5396IFBG support fully managed switch operation?
Yes. The SPI management interface provides full register-level access to all switch configuration parameters, enabling managed operation including 802.1Q VLAN configuration, QoS queue assignment, 802.1x MAC security enforcement, Spanning Tree and Rapid Spanning Tree protocol operation, port-based rate control, and MAC address table management. The device also supports standalone unmanaged operation for simpler applications where SPI programming overhead is not required.
What cross-reference or replacement options are available for BCM5396IFBG?
The BCM5396IFBG is a proprietary Broadcom RoboSwitch SoC with a specific pinout, register map, and software driver ecosystem. Direct pin-compatible substitutes from other manufacturers are not generally available — the BCM5389 and BCM5388 are related lower-port-count RoboSwitch devices in the same family but are not pin-compatible replacements. For programs evaluating supply alternatives or obsolescence mitigation strategies for the BCM5396IFBG, contact Sparkle Electronics to discuss stock availability, lot history, and alternative supply options.
What documentation is available for BCM5396IFBG procurement?
Sparkle Electronics provides packing list, certificate of origin, and supplier documentation for BCM5396IFBG procurement. For programs requiring additional component authenticity verification or supply chain documentation, our procurement team can advise on available lot history and sourcing traceability. Submit documentation requirements at inquiry stage to confirm availability before order placement. Contact us to discuss your specific documentation needs.
Sourcing BCM5396IFBG for an industrial networking or defense embedded program? Sparkle Electronics maintains verified stock of Broadcom GbE switch SoCs for immediate fulfillment and long-term program support. Submit an inquiry — same-day response on pricing, stock confirmation, lead time, and supply continuity options.
