BCM5655KPBG 概覽
A multi-layer switch is a semiconductor that performs Ethernet frame forwarding at Layer 2 while also supporting higher-layer packet processing and traffic classification. This device category sits within the broader hierarchy of integrated circuits, communication ICs, Ethernet interface ICs, and network processors. Its multi-port architecture is intended to reduce the number of separate switching components required in access, aggregation, and embedded networking systems.
The available verified listing information does not provide a complete manufacturer datasheet specification table. It does specifically identify the BCM5655KPBG as a StrataXGS multi-layer switch with a 48FE + 4GE configuration. The exact package dimensions, pin count, electrical limits, clocking requirements, PHY or SERDES arrangement, voltage rails, and thermal characteristics should therefore be confirmed against the original Broadcom datasheet before schematic capture or PCB layout is released.
BCM5655-based devices are relevant to Ethernet access equipment, router and gateway platforms, industrial Ethernet systems, and other products requiring consolidated multi-port switching. Compared with a collection of discrete Ethernet PHYs and a separate switching fabric, an integrated multi-layer switch can simplify board partitioning and provide a unified path for Ethernet traffic handling. The exact throughput, switching fabric, processor, memory, and interface details remain subject to the relevant BCM5655 technical documentation.
This product is best selected when the required product design specifically calls for the BCM5655KPBG ordering code or its 48FE + 4GE StrataXGS configuration. Because the supplied evidence does not include lifecycle status, pricing, pinout, or a verified drop-in replacement list, engineers should request the latest Broadcom documentation and current authorized-channel availability before committing to production.
This page consolidates the verified distributor descriptions, source links, application context, selection considerations, and unresolved-data notes needed for initial engineering review. It intentionally distinguishes documented facts from parameters that still require confirmation from the manufacturer datasheet.
直接替換替代品，適用於 BCM5655KPBG — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品BCM5655KPBG 最大額定值與電氣特性
| Device Type | StrataXGS integrated multi-layer switch |
| Port Configuration | 48FE + 4GE |
| Fast Ethernet Ports | 48 ports |
| Gigabit Ethernet Ports | 4 ports |
| Product Family | BCM5655 |
| Switching Architecture | Integrated multi-layer switching |
| Manufacturer | Broadcom |
| Mouser Device Classification | Switch ICs - Various |
| Orderable Part Number | BCM5655KPBG |
BCM5655KPBG standard 腳位配置指南
BCM5655KPBG（standard 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： BCM5655KPBG.
請參閱 資料表 以查看完整腳位配置。
典型應用
BCM5655KPBG 適用於 6 應用s: Ethernet Access Equipment, Industrial Ethernet Gateway, Router and Gateway Platform, Ethernet Switch Appliance, Network Interface Expansion, Communication and Control System.
Ethernet Access Equipment
The Broadcom BCM5655KPBG fits access platforms requiring 48 Fast Ethernet ports and 4 Gigabit Ethernet ports in a single switching IC. Its integrated multi-layer architecture can consolidate switching and packet-processing functions that might otherwise require several network devices. An equipment designer would place the BCM5655KPBG at the center of the Ethernet front end, then connect the 48FE and 4GE groups to PHY, magnetics, and connector networks. The verified data does not specify PHY integration, switching throughput, or thermal limits, so those items must be confirmed before final architecture approval.
推薦
Industrial Ethernet Gateway
The BCM5655KPBG's documented 48FE + 4GE configuration is suitable as a candidate for an industrial Ethernet gateway that combines many low-speed ports with higher-speed uplink connectivity. The multi-layer switching function can support integrated forwarding and packet handling within one device, while the 4GE ports can serve aggregation or uplink duties. Before selecting it for a factory-floor product, verify operating temperature, isolation requirements, power rails, PHY media support, and long-term availability from the complete manufacturer datasheet.
推薦
Router and Gateway Platform
The Broadcom BCM5655KPBG can be evaluated for router or gateway platforms that need numerous Fast Ethernet service ports plus four Gigabit Ethernet interfaces for aggregation. Integrating a multi-layer switch helps establish a unified forwarding path while reducing the number of discrete packet-processing and switching blocks. The 48FE + 4GE endpoint is verified, but total switching throughput, internal processor performance, memory, boot requirements, and SERDES options are unavailable. Those specifications determine whether the device can terminate line-rate traffic rather than merely provide the required port count.
推薦
Ethernet Switch Appliance
A managed Ethernet appliance can use the BCM5655KPBG as its central multi-layer switching component when its control CPU must work with a broad mix of 100 Mb/s and 1 Gb/s ports. The documented 48FE + 4GE distribution supports legacy endpoint aggregation and faster uplinks in one design. A practical implementation still requires confirming the PHY or SERDES architecture, switching capacity, queueing, management firmware, and package thermal performance because none of those details appear in the supplied source snippets.
推薦
Network Interface Expansion
The BCM5655KPBG can be considered when an embedded networking subsystem requires expansion beyond a few isolated Ethernet interfaces. Its 48 Fast Ethernet and 4 Gigabit Ethernet counts allow a designer to create a concentrated port fabric instead of distributing switching across many discrete components. The tradeoff is a high-complexity platform requiring careful validation of media interfaces, software initialization, clocking, power sequencing, thermal design, and PCB signal integrity. The supplied data confirms the port architecture but does not provide the parameters needed to finalize those circuits.
推薦
Communication and Control System
The BCM5655KPBG is a candidate for communication equipment that combines multiple Ethernet-facing interfaces with local packet processing. Its integrated StrataXGS multi-layer switching role may simplify traffic organization in a controller, service node, or edge appliance with numerous 100 Mb/s ports and four 1 Gb/s links. Selection should be based on verified throughput and interface requirements rather than port count alone. Confirm the exact data sheet, boot software, electrical limits, package, and thermal characteristics before using the device in safety- or mission-critical control paths.
推薦
推薦產品摘要
工程參考資料，適用於 BCM5655KPBG — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Brand | Broadcom |
| Device Type | StrataXGS integrated multi-layer switch |
| Port Configuration | 48FE + 4GE |
| Fast Ethernet Ports | 48 ports |
| Gigabit Ethernet Ports | 4 ports |
主要差異化特點
- Consolidated multi-port Ethernet architecture (對比No verified drop-in alternative was identified)
- Established Broadcom StrataXGS product positioning (對比No verified cross-brand equivalent was identified)
- Mixed-speed port support (對比No verified drop-in alternative was identified)
設計說明
Do not assign the BCM5655KPBG supply rails or decoupling network until the exact Broadcom datasheet and power-supply design guide are available. The supplied sources do not disclose core and I/O voltages, current limits, power-up sequencing, or whether rails can be tied. Verify each rail's tolerance, ramp requirement, and current budget, then place the manufacturer-recommended bulk and high-frequency capacitors directly beside the associated package power and ground connections.
A 48FE + 4GE switching design is likely to contain high-speed differential links and numerous Ethernet channels, but the verified package and ball assignment are not provided. Obtain the BCM5655 PCB design guide and follow its reference escape routing, layer stack, via, and return-path rules exactly. Do not derive a ball map from the PBG suffix or copy another BCM5655 package without a documented engineering confirmation.
Calculate dissipated power only after the verified operating voltage, core current, I/O loading, and package thermal data are known. Because those inputs are absent, any heat estimate would be speculative. Use the manufacturer's recommended land pattern and copper area, validate worst-case ambient temperature and airflow, and confirm the selected package, board construction, and heat-spreading solution before production release.
The most common sourcing error is treating any BCM5655-family code as interchangeable with BCM5655KPBG. The verified data establishes the exact PBG ordering code and its 48FE + 4GE function, but it does not establish pin, software, or lifecycle equivalence for other family members. Require a manufacturer migration table or change-control notice before substituting, and validate PHY support, boot firmware, management software, and thermal constraints together.
合規資訊
The supplied search results do not contain verified compliance statements for BCM5655KPBG. Lifecycle status is shown as nrnd because the part is listed by multiple distributors but the supplied data does not provide a current manufacturer lifecycle classification; confirm the status with Broadcom before procurement.
