BCM56524B0KFSBLG - 24-Port GbE StrataXGS Switch | Broadcom
MPN： BCM56524B0KFSBLG ✓ 啟用中BCM56524B0KFSBLG 概覽
A Gigabit Ethernet switch IC is a System-on-Chip that combines Media Access Controllers (MACs), PHYs, a packet classifier, forwarding tables, and a switch fabric into a single silicon die. Within the network equipment hierarchy, switch ICs sit at the access/aggregation layer between the physical copper/fiber ports and the management CPU, classifying and queuing packets before they reach the CPU's network operating system (NOS). The BCM56524 is part of the StrataXGS product family, a long-running Broadcom line used in nearly all major Tier-1 enterprise switch SKUs.
Key features include 24 integrated 10/100/1000 Mbps copper transceivers with SerDes, dedicated 10-GbE uplink-capable interfaces for stacking, hardware-accelerated Access Control List (ACL) processing, IPv4/IPv6 routing, advanced QoS with hierarchical policing and shaping, and a single-chip managed Layer 2+ switching solution. The device is also notable for its hardware-resilient architecture supporting hitless failover, link aggregation (LACP), and OAM (Operations, Administration, and Maintenance) for carrier-grade deployments.
The BCM56524 employs a shared-memory cut-through/ store-and-forward hybrid architecture and connects to an external CPU via PCI Express or a parallel local bus for management plane access. Its Broadcom switch API enables interoperability with common network operating systems such as Cisco IOS variants, Open Network Linux, and other open-source NOS forks. Because the part includes both PHY and MAC functions, the reference design dramatically reduces external component count versus a discrete PHY-plus-discrete-switch approach.
Typical applications include enterprise access switches (24-port and 48-port managed switches), SMB managed switches with 10G uplinks, industrial Ethernet switches, and embedded networking modules for industrial control and smart-grid backhaul. The integration density also supports fanless switch designs where the device's power envelope fits within a passively cooled thermal budget.
When designing with the BCM56524, allocate at least four PCB layers with a continuous ground plane under the BGA, follow the manufacturer's thermal management guidelines for the exposed die pad, and validate DDR timing margins per the reference design. The firmware/SDK from Broadcom is required to initialize the switch fabric; third-party NOS support varies by chipset variant.
This page synthesizes distributor stock levels, drop-in MPN alternatives within the StrataXGS family, and reference design notes that go beyond the manufacturer datasheet summary.
直接替換替代品，適用於 BCM56524B0KFSBLG — 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。
BCM56524B0IFSBG
✅ 直接替換📋 參考替代品（不在目錄中）
BCM56524B0KFSBLG
✅ 直接替換聯絡詢價
查看資料表 →BCM56524KFSBG
✅ 直接替換📋 參考替代品（不在目錄中）
BCM56524B0KFSBLG 最大額定值與電氣特性
| Product Type | Multilayer Gigabit Ethernet Switch IC |
| Product Family | StrataXGS III+ |
| Integrated Copper Ports | 24 x 10/100/1000 Mbps |
| Uplink Interfaces | 10-GbE-capable SerDes for stacking/uplinks |
| Layer Support | L2 / L3 / L4 wire-speed |
| Packet Processing | Shared memory, store-and-forward / cut-through hybrid |
| ACL Support | Hardware-accelerated ACLs |
| IPv6 Support | Yes (IPv4/IPv6 routing) |
| QoS | Hierarchical policing and shaping |
| CPU Interface | PCI Express and/or local bus (variant-dependent) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
BCM56524B0KFSBLG standard 腳位配置指南
BCM56524B0KFSBLG（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： BCM56524B0KFSBLG.
請參閱 資料表 以查看完整腳位配置。
典型應用
BCM56524B0KFSBLG 適用於 6 應用s: 24-Port Enterprise Access Switch, SMB Managed Switch with 10G Uplinks, Industrial Ethernet Managed Switch, Carrier Ethernet Access Switch, Data Center Top-of-Rack (ToR) Leaf Switch, Wireless LAN Controller Aggregation Switch.
24-Port Enterprise Access Switch
The BCM56524B0KFSBLG's 24 integrated GbE transceivers and 10-GbE-capable SerDes make it a single-chip solution for enterprise access switches. It fits Layer 2+ managed switch SKUs where 24 copper ports plus optional 10G uplinks are required. Hardware ACLs and hierarchical QoS enforce per-VLAN and per-port policy at line rate. The shared-memory fabric and Broadcom SDK simplify firmware integration with major NOS platforms.
推薦
SMB Managed Switch with 10G Uplinks
For small-and-medium business managed switches, the BCM56524B0KFSBLG provides 24 GbE access ports plus 10G uplink SerDes that connect to SFP+ cages. Its hardware forwarding table supports LACP link aggregation across multiple ports for uplink resilience. The integrated PHYs reduce BOM compared with discrete-PHY designs, which is critical for SMB price points. Layer 3 lite routing enables inter-VLAN routing without an external CPU router.
推薦
Industrial Ethernet Managed Switch
Industrial-grade BCM56524 variants (-B0IFSBLG suffix style) operate from -40C to +85C, fitting factory automation, transportation, and smart-grid backhaul switches. The integrated copper PHYs tolerate industrial EMI environments, and hardware ACLs enforce deterministic QoS for protocols like PROFINET, EtherNet/IP, and Modbus TCP. Hardware OAM and ring-protection protocols enable sub-50 ms failover required by industrial networks.
推薦
Carrier Ethernet Access Switch
The BCM56524B0KFSBLG's hardware OAM, ACL, and QoS features align with carrier Ethernet requirements for E-Line/E-LAN/E-Tree service profiles. Synchronous Ethernet (SyncE) support and hardware-based timing over packet meet carrier timing requirements. Provider bridging, QinQ stacking, and hardware policers enable multi-tenant traffic isolation for business Ethernet services deployed at customer premises.
推薦
Data Center Top-of-Rack (ToR) Leaf Switch
Although primarily an access-tier part, the BCM56524B0KFSBLG can serve small-scale data center leaf switches where 24 GbE server ports plus 10G uplinks to the spine tier suffice. Hardware VXLAN, EVPN, and DCBX data-center bridging protocols are supported in capable firmware revisions. The integrated CPU interface (PCIe or local bus) lets a small management CPU handle BGP/EVPN control plane.
推薦
Wireless LAN Controller Aggregation Switch
The BCM56524B0KFSBLG can aggregate PoE-powered wireless access points in campus WLAN deployments, with hardware ACLs isolating CAPWAP tunnels and PoE management per port. Power over Ethernet (PoE) delivery requires companion PoE controller ICs; the switch IC handles the data-plane and PoE scheduling interfaces. Hardware multicast IGMP/MLD snooping efficiently distributes wireless multicast traffic across the campus.
推薦
推薦產品摘要
工程參考資料，適用於 BCM56524B0KFSBLG — 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 | BCM56524B0IFSBG | BCM56524B0KFSBLG | BCM56524KFSBG |
|---|---|---|---|---|
| Brand | Broadcom | Broadcom | Broadcom | Broadcom |
| Integrated GbE Ports | 24 | 24 | 24 | 24 |
| Uplink SerDes | 10-GbE capable | 10-GbE capable | 10-GbE capable | 10-GbE capable |
| Temperature Grade | Commercial (variant -I suffix for industrial) | Industrial (-40C to +85C) | Commercial | Commercial |
| Layer Support | L2 / L3 / L4 | L2 / L3 / L4 | L2 / L3 / L4 | L2 / L3 / L4 |
| QoS / ACL | Hierarchical QoS + hardware ACL | Hierarchical QoS + hardware ACL | Hierarchical QoS + hardware ACL | Hierarchical QoS + hardware ACL |
主要差異化特點
- Single-chip 24-port integration with integrated PHYs (對比BCM56524B0IFSBG)
- Broad StrataXGS SDK/SDKLT ecosystem support (對比Marvell Prestera 98DX3236)
設計說明
Use a minimum four-layer PCB with a continuous ground plane directly under the BGA package. According to Broadcom's reference design notes, broken or split ground planes under high-speed SerDes degrade signal integrity and increase EMI. Route differential SerDes pairs with 100-ohm differential impedance, match length within the datasheet tolerance, and keep reference planes unbroken beneath each pair.
Estimated: at typical 24-port GbE traffic, the BCM56524 dissipates roughly 8-15 W, depending on utilization. Apply Broadcom's thermal management reference design - copper thermal vias under the BGA exposed pad and adequate airflow. For fanless designs, use thermal simulation to confirm junction temperature stays within derating limits at the maximum ambient operating temperature.
Do not assume the BCM56524 firmware is pre-loaded - Broadcom switch ICs typically ship without firmware and require the SDK/SDKLT image to be programmed by the OEM during production. Confirm the Broadcom NDA and software license are in place before starting firmware development. Also verify DDR3/DDR4 timing margins per the reference design; transient errors from undertimed memory are a common source of field failures.
合規資訊
RoHS compliant per Broadcom product page. Reach, halogen-free, and conflict-mineral compliance status not present in the Verified Web Data and should be verified from the manufacturer's full compliance declaration.
