VSC7462YIH - 12x1G + 4x10G Ethernet Switch | Microchip
料号： VSC7462YIH ✓ 量产中VSC7462YIH 概述
A Carrier Ethernet switch is a high-performance Ethernet interface device designed to combine packet switching, transport-network awareness, and service-aware traffic management. It belongs to the Ethernet switch, network interface, and communication semiconductor hierarchies. Compared with general-purpose endpoint Ethernet controllers, a Carrier Ethernet switch is intended to aggregate traffic, apply carrier-oriented policies, and provide hardware-assisted forwarding across multiple line-rate interfaces.
The VSC7462 is based on Microchip's Virtualized Service Aware Architecture, or ViSAA. This architecture provides the silicon foundation for service-edge and Carrier Ethernet processing functions. The four XAUI interfaces support 10 Gbps links, while the twelve copper Ethernet ports support rates from 10 Mbps through 1 Gbps. This combination allows one switching device to connect lower-rate access traffic to higher-capacity uplinks without requiring separate aggregation silicon for each speed class.
A principal implementation consideration is that this is a complex 672-pin BGA device rather than a conventional small-outline interface IC. Its exposed-pad package requires a multilayer PCB, controlled escape routing, extensive ground-plane continuity, and careful high-speed XAUI layout. Power delivery also spans many supply and ground balls, so the design must follow the manufacturer's reference design, recommended decoupling network, and ball-assignment guidance rather than treating the package as a simple two-rail part.
Typical uses include Carrier Ethernet service-edge equipment, mobile backhaul, metro aggregation, access-network equipment, packet-processing platforms, and systems that combine 1 Gbps copper ports with 10 Gbps uplinks. The XAUI interfaces can also support 2.5 Gbps configurations, making the device useful where operators are migrating access links while preserving higher-rate backbone capacity.
Engineers should treat board compatibility, firmware, PHY integration, clocking, and software configuration as a complete design decision rather than a component substitution. The VSC7462 family is associated with the VSC6810 CEServices software package and related managed-switch development environments. Those tools and the reference hardware materially affect bring-up performance and feature enablement.
This page consolidates the verified port configuration, package information, architecture, sourcing details, and engineering considerations for VSC7462YIH. It also distinguishes documented device capabilities from parameters that require confirmation in the manufacturer datasheet, helping engineers plan schematic, PCB, thermal, and software integration before committing a 672-pin Carrier Ethernet design to production.
直接替换替代料： VSC7462YIH ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： VSC7462YIH （相同外形与封装尺寸） ——差异在于 Copper Ethernet Ports, Device Type.
该产品暂无直接替换替代料。
请求替代料VSC7462YIH 最大额定值与电气特性
| Device Type | Carrier Ethernet switch |
| Copper Ethernet Ports | 12 ports |
| Copper Port Speeds | 10 Mbps, 100 Mbps, and 1 Gbps |
| XAUI Ports | 4 ports at 10 Gbps |
| Optional 2.5 Gbps Ports | Up to 8 ports using two XAUI ports |
| Architecture | Virtualized Service Aware Architecture (ViSAA) |
| Total Listed Port Count | 16 ports |
| Maximum Interface Rate | 10 Gbps per XAUI port |
| 封装 | 672-pin HFCBGA |
| Package Shape | Square |
| 引脚数量 | 672 pins |
| Temperature Grade | Automotive |
| Lead-Free Status | Pb-free |
| Packaging | Tray |
| Associated Software | VSC6810 CEServices software package |
VSC7462YIH square 引脚配置指南
VSC7462YIH（square 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： VSC7462YIH.
请参阅 数据手册 以查看完整引脚配置。
典型应用
VSC7462YIH 适用于 6 应用s: Carrier Ethernet Service Edge, Mobile Backhaul Aggregation, Metro Network Aggregation, Enterprise Packet-Processing Platform, Access Network Equipment, Network Equipment Test Platform.
Carrier Ethernet Service Edge
The VSC7462YIH fits a Carrier Ethernet service-edge platform that must aggregate twelve copper access connections and forward them through four 10 Gbps XAUI uplinks. Its ViSAA architecture is specifically associated with service-aware networking, allowing the platform to combine access traffic with carrier-oriented policy functions in one switching device. Two XAUI ports can optionally be subdivided to support as many as eight 2.5 Gbps links, which is useful when service nodes operate below full 10 Gbps line rate. The board must nevertheless be designed around a 672-pin HFCBGA, with careful power distribution, high-speed differential routing, and a multilayer stackup.
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Mobile Backhaul Aggregation
Mobile backhaul equipment commonly combines multiple lower-rate access links with a smaller number of high-capacity uplinks. VSC7462YIH provides twelve ports capable of 10 Mbps, 100 Mbps, or 1 Gbps for radio or access-node aggregation and four 10 Gbps XAUI interfaces for the transport side. Optional 2.5 Gbps subdivision across two XAUI ports adds deployment flexibility when backhaul sites do not require full 10 Gbps capacity. Synchronization, network timing, thermal limits, and environmental requirements still require system-level validation; the switching IC does not by itself establish compliance with an operator's backhaul profile.
推荐
Metro Network Aggregation
A metro aggregation chassis can use the VSC7462YIH to combine numerous 1 Gbps service connections with higher-speed network uplinks. The twelve copper ports support 10 Mbps, 100 Mbps, and 1 Gbps rates, which accommodates legacy access, commercial service, and management traffic, while four XAUI ports provide 10 Gbps forwarding paths. The optional eight-port 2.5 Gbps configuration offers a practical middle tier between 1 Gbps access and 10 Gbps uplinks. Deployment requires careful SerDes trace geometry, reference clock design, thermal planning, and board-level testing because the 672-pin BGA package has far greater integration and routing complexity than a conventional discrete switch.
推荐
Enterprise Packet-Processing Platform
VSC7462YIH can serve in an enterprise packet-processing platform that needs both copper access ports and high-speed fabric links. The twelve 1 Gbps-capable copper ports can connect servers, access nodes, or management interfaces, while four 10 Gbps XAUI ports connect the switching silicon to a processing fabric. This mixed-rate arrangement reduces the number of separate switching devices needed in a modular platform. However, the component is more complex than a conventional enterprise access switch, so it is most appropriate when service awareness, carrier features, and a high-performance SerDes fabric justify the associated PCB, power, firmware, and validation effort.
推荐
Access Network Equipment
The VSC7462YIH is applicable to access-network equipment that must terminate multiple copper services and connect them toward higher-capacity transport. Twelve ports at 10 Mbps through 1 Gbps support a range of subscriber, enterprise, and management access rates, while four 10 Gbps XAUI interfaces provide aggregation toward the core. Optional 2.5 Gbps operation can align deployed access nodes with an intermediate uplink speed. The design must account for the device's 672-ball package, multilayer PCB construction, numerous supply connections, and the manufacturer's recommended clocking and SerDes implementation to maintain signal integrity.
推荐
Network Equipment Test Platform
A test platform can use VSC7462YIH as a programmable packet-generation, traffic-analysis, or switching endpoint when it needs to exercise multiple Ethernet rates on one board. The twelve copper ports allow simultaneous testing of 10 Mbps, 100 Mbps, and 1 Gbps links, while the four 10 Gbps XAUI ports can serve as high-bandwidth test traffic paths or connections to line-card instrumentation. Optional 2.5 Gbps subdivision provides additional test topologies. Engineering teams must budget for high-density BGA assembly, signal-integrity validation, thermal control, and software configuration, making the device better suited to laboratory and production-test infrastructure than simple field diagnostics.
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推荐产品汇总
工程参考数据： VSC7462YIH ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Device Type | Carrier Ethernet switch |
| Brand | Microchip Technology |
| Package | 672-pin HFCBGA |
| Copper Ethernet Ports | 12 ports |
| Copper Port Speeds | 10 Mbps, 100 Mbps, and 1 Gbps |
| XAUI Ports | 4 ports at 10 Gbps |
| Optional 2.5 Gbps Ports | Up to 8 ports using two XAUI ports |
| Architecture | Virtualized Service Aware Architecture (ViSAA) |
| Temperature Grade | Automotive |
| Packaging | Tray |
关键差异点
- Integrated mixed-rate port architecture （对比 Generic Ethernet switch)
- Carrier-oriented switching architecture （对比 Basic managed Ethernet switch)
- Flexible 2.5 Gbps expansion （对比 Fixed 1 Gbps access switch)
设计说明
Design the VSC7462YIH board around the manufacturer's 672-pin HFCBGA stackup and escape-routing guidance. The mixed 10 Gbps XAUI interfaces require short, symmetric differential routing with a continuous reference plane, while the many power and ground balls require a dense via array and low-impedance distribution network. Use a multilayer stackup capable of supporting the high-speed SerDes interfaces, and validate layer transitions and via stubs during signal-integrity simulation before fabrication.
Implement separate filtering branches for each required supply group and follow the manufacturer ball map and reference schematic for component placement. Place high-frequency decoupling capacitors immediately adjacent to the relevant device balls, then connect them through short vias to the power and ground planes. Estimate the total dissipation only after obtaining the datasheet current and voltage tables, then apply the required thermal derating across the complete automotive or industrial ambient range.
Treat every XAUI pair as a controlled-impedance 10 Gbps differential channel. Match pair length within the limits stated by the manufacturer, avoid vias and layer changes where practical, and maintain continuous reference planes beneath the traces. Define XAUI and copper-port keepouts, power-plane splits, and connector or PHY escape paths in the board constraints. Perform pre-compliance and system-level testing because compliance results from individual transceivers do not validate the complete board channel.
Do not substitute a switch solely because its aggregate port bandwidth is similar. A replacement must reproduce the 672-ball footprint, four XAUI interfaces, twelve copper-port connections, clocking architecture, electrical limits, and required firmware behavior. Also verify that optional 2.5 Gbps operation is supported by the associated PHIs and board configuration rather than assuming that every XAUI lane combination is available. Use the manufacturer reference design as the baseline for power, SerDes, management interfaces, and bring-up tests.
合规信息
The distributor listing identifies the exact device as Pb-free and automotive-grade. RoHS, REACH, halogen-free, and conflict-minerals status are not explicitly stated in the cited material; automotive grade supports AEC-Q100 interpretation but the formal qualification record should be confirmed for the exact orderable MPN.
