VSC7390XHO - 24-Port Gigabit Ethernet Switch | Microchip
料号： VSC7390XHO ✗ 停产VSC7390XHO 概述
A smart Ethernet switch is an interface IC that connects multiple network nodes and forwards Ethernet frames according to Layer-2 addresses. Within the device hierarchy, this product belongs to Ethernet controllers, network interface controllers, interface ICs, and integrated circuits. Integrating switching and physical-layer circuitry can reduce the number of separate PHY components required in a network appliance, although the complete design still requires adequate board area, thermal management, signal-integrity control, and verified magnetic-interface components.
The principal verified features of the VSC7390XHO are its 24-port Layer-2 switching architecture, four Gigabit Ethernet ports, 48 integrated tri-speed copper transceivers, and support for 10/100/1000 Mbps data rates. The integrated PHYs are identified as IEEE 802.3ab compliant, providing a defined Gigabit Ethernet copper-interface basis for the system. The package also provides a high pin count and substantial contact area, making careful layout, grounding, and power-plane design important in a production layout.
The product is specified as lead-free and RoHS compliant. Its manufacturer product page identifies the VSC7390 family as “Not Recommended for new designs,” making lifecycle status an important qualification criterion. This designation does not mean that every existing design must be replaced immediately, but new equipment should normally use a currently recommended switching platform unless an approved lifecycle program specifically supports the older family.
Typical uses for this device include managed network appliances, industrial Ethernet equipment, telecommunications access hardware, storage systems, surveillance infrastructure, and other embedded systems requiring multiple copper Ethernet connections. Its integration can simplify board partitioning when the required channel count and physical-layer configuration match the target network architecture. It is less suitable when a design requires a different number of ports, a different copper-media standard, or a currently recommended lifecycle pathway.
Before committing a layout, engineers should confirm the complete VSC7390 pin and ball assignment from the manufacturer documentation, validate power and thermal requirements, and preserve high-speed copper-channel geometry. The verified data does not provide a complete public ball map, so this page does not fabricate pin assignments or claim a specific reference design. Production procurement should also confirm package marking, die revision, lifecycle obligations, and manufacturer-approved sourcing.
This page consolidates the verified manufacturer status, distributor listings, package information, and RoHS and lead-free statements. It also distinguishes the VSC7390XHO from generic Ethernet-switch families and explicitly avoids presenting cross-package functional substitutes as pin-compatible drop-in replacements.
直接替换替代料： VSC7390XHO ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料VSC7390XHO 最大额定值与电气特性
| Product Type | 24-port integrated Layer-2 Gigabit Ethernet smart switch |
| Number of Ports | 24 ports |
| Dedicated Gigabit Ethernet Ports | 4 ports |
| Integrated Copper Transceivers | 48 transceivers |
| Supported Copper Speeds | 10/100/1000 Mbps |
| Gigabit Ethernet PHY Compliance | IEEE 802.3ab |
| Switching Architecture | Layer-2 Ethernet switching |
| Performance Class | Non-blocking wire-speed performance |
| Package Type | 596-BGA |
| Package Dimensions | 35 mm x 35 mm |
| 安装类型 | Surface-mount ball grid array |
| Lead-Free Status | Lead Free |
| RoHS 状态 | RoHS Compliant |
| Lifecycle Recommendation | Not Recommended for new designs |
| Manufacturer | Microchip Technology |
VSC7390XHO 35 mm x 35 mm 引脚配置指南
VSC7390XHO（35 mm x 35 mm 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： VSC7390XHO.
请参阅 数据手册 以查看完整引脚配置。
典型应用
VSC7390XHO 适用于 6 应用s: Managed Network Appliance, Industrial Ethernet Control Equipment, Telecommunications Access Equipment, Networked Storage Controller, Video Surveillance Infrastructure, Industrial IoT Gateway.
Managed Network Appliance
The VSC7390XHO fits an embedded managed network appliance that needs Layer-2 switching and local copper media access in one device. Its verified 24-port architecture, four Gigabit Ethernet ports, and 48 integrated tri-speed transceivers provide substantial port integration without requiring every physical layer to be implemented externally. The design can place the switch between internal equipment and external network-facing ports while centralizing frame forwarding. Because the family is not recommended for new designs, engineers should favor it mainly in maintained platforms whose PCB, firmware, and thermal design are already proven. Production qualification must confirm exact port mapping, management behavior, power requirements, and the complete official ball assignment.
Industrial Ethernet Control Equipment
The VSC7390XHO is appropriate for qualified industrial Ethernet equipment that connects controllers, sensors, service interfaces, and plant-network equipment through integrated copper PHYs. Its support for 10/100/1000 Mbps allows mixed-speed links to coexist within a Layer-2 switching subsystem, while IEEE 802.3ab compliance provides a verified basis for the Gigabit Ethernet physical layer. The large 596-BGA package requires careful grounding and thermal planning in compact industrial enclosures. New industrial programs should account for the manufacturer’s not-recommended-for-new-designs status, while existing production equipment can benefit from maintaining a validated platform and firmware baseline.
Telecommunications Access Equipment
The VSC7390XHO can support legacy telecommunications access and aggregation equipment requiring numerous integrated copper connections. Its 24-port smart-switch organization and 48 tri-speed transceivers make it useful where a compact system must combine frame switching with Ethernet media access. The verified data identifies the product as a telecommunications switch IC, but it does not provide line-card timing, synchronization, thermal, or regulatory requirements. Those details must be checked in the official documentation before use. Given the not-recommended lifecycle status, this device is best suited to maintained access platforms or projects with an explicit manufacturer-supported lifecycle plan rather than unrestricted new deployments.
Networked Storage Controller
The VSC7390XHO can serve as the Layer-2 networking element in a qualified storage controller, NAS, or storage gateway where several internal and external copper Ethernet links must converge on a switching fabric. The four dedicated Gigabit Ethernet ports and additional integrated tri-speed transceivers provide flexibility for separating storage traffic, management traffic, or service connectivity. Its verified non-blocking wire-speed classification supports the target of forwarding traffic without head-of-line blocking at the switch layer. Engineering validation must still cover buffer behavior, latency, media interface components, power sequencing, and thermal performance because these parameters were not supplied. Existing designs also require confirmation that firmware and board revisions remain supported.
Video Surveillance Infrastructure
The VSC7390XHO is suitable for a qualified surveillance aggregation product that connects multiple camera or access-network endpoints over copper Ethernet. Its 24 switch ports and integrated 10/100/1000 Mbps transceivers allow a single Layer-2 subsystem to combine camera-facing links with higher-speed uplink connections. The integrated PHYs can simplify the physical-layer partitioning of a dense installation, while the 596-BGA package requires exact high-speed layout execution and adequate thermal spreading. Designers must confirm PoE requirements, which are not specified in the verified data, and verify any external magnetics, isolation, surge protection, and power budgets. New surveillance platforms should assess lifecycle risk before adopting this NRND family.
Industrial IoT Gateway
The VSC7390XHO can fit a maintained industrial IoT gateway that bridges local Ethernet devices to an upstream network. The 24-port Layer-2 switch, four Gigabit Ethernet ports, and 48 integrated copper transceivers provide enough connectivity for sensors, controllers, service tools, and backbone links. Tri-speed support allows the gateway to accommodate legacy 10/100 Mb equipment alongside Gigabit Ethernet infrastructure, and IEEE 802.3ab compliance supports standards-based copper interfacing. The design must address thermal rise from the large switching IC, supply sequencing, EMI filtering, and high-speed return paths. Because the family is not recommended for new designs, use it primarily when an existing gateway platform or reference layout already depends on the VSC7390.
工程参考数据： VSC7390XHO ——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 | BCM56850 series | Prestera switch family | KSZ9477 series |
|---|---|---|---|---|
| Product Type | 24-port integrated Layer-2 Gigabit Ethernet smart switch | Broadcom Ethernet switch family | Marvell Ethernet switch family | Microchip Ethernet switch family |
| Brand | Microchip Technology | Broadcom | Marvell | Microchip Technology |
| Drop-In Pin Compatibility | 596-BGA reference footprint | Not established | Not established | Not established |
关键差异点
- High degree of copper-PHY integration （对比 KSZ9477 series)
- Defined four-port Gigabit Ethernet configuration （对比 BCM56850 series)
- Established 596-BGA package identity （对比 Prestera switch family)
- Clear lifecycle statement for sourcing review （对比 KSZ9477 series)
设计说明
Treat the 596-BGA layout as a high-density, high-speed design rather than a conventional generic BGA escape task. Use the official Microchip package drawing and reference layout to define ball assignments, layer count, via construction, and fanout. Preserve continuous ground references beneath high-speed copper routes, avoid splits across the switching and PHY areas, and follow manufacturer guidance for via-in-pad usage. The verified excerpts do not provide a complete ball map or recommended stack-up, so those details must not be inferred from the package size alone.
Validate every supply rail for sequencing, ramp limits, noise, and load current using the official VSC7390 documentation. Decoupling capacitors should be placed directly at the relevant supply and ground balls with short, low-inductance paths, while power and ground planes should be divided only as specifically recommended by Microchip. Because no operating-voltage range, current limit, or power-consumption figures were supplied, do not size the power tree from generic Ethernet-switch assumptions. Confirm steady-state and transient dissipation on the actual PCB under worst-case traffic and temperature.
The 48 integrated 10/100/1000 Mbps copper transceivers make channel symmetry and return-path control central to the layout. Route each copper channel over a continuous reference plane, maintain appropriate differential impedance, minimize stubs and test-point discontinuities, and keep unrelated noisy circuits away from PHY and clock regions. Copper-channel routing details, magnetics, and isolation requirements were not included in the verified excerpts, so use the manufacturer reference design for exact topology and component placement.
Do not treat the BCM56850 series, Marvell Prestera family, or KSZ9477 series as drop-in substitutes for the VSC7390XHO based only on general Ethernet-switch functionality. The available data does not establish identical packages, ball maps, supply rails, management firmware, clock interfaces, or peripheral connectivity. Likewise, verify whether a proposed replacement supports all 48 integrated tri-speed transceivers and the required four Gigabit Ethernet ports. Any migration should include schematic comparison, firmware validation, signal-integrity review, thermal testing, and a deliberate PCB-change plan.
合规信息
The verified VSC7390XHO listing identifies the part as RoHS compliant and lead-free. No verified evidence establishes REACH, halogen-free, conflict-minerals, or automotive qualification status.
