VSC8514XMK-14 - 4-Port Gigabit Ethernet PHY | Microchip
N.º de pieza: VSC8514XMK-14 ✓ ActivoVSC8514XMK-14 Descripción general
An Ethernet PHY is the physical-layer transceiver within a network interface. It converts parallel digital data from a MAC or switching SoC into copper-link signals, while receiving and decoding signals arriving through a twisted-pair cable. In the network hierarchy, the VSC8514 is a multiport Ethernet interface IC, a member of the broader transceiver and communications-semiconductor category. Integrating four Gigabit PHYs into one package reduces board area and simplifies multiport equipment designs.
Key device features include four Gigabit Ethernet ports, QGMII connectivity to the upper MAC layer, and support for TDM backhaul, wireless base-station, carrier, broadband-gateway, data-center, and enterprise-network applications. The manufacturer positions the device around low-power operation for energy-efficient systems. Its ActiPHY power-management capability can reduce power consumption when an inactive link does not require full transceiver operation, while VeriPHY cable diagnostics provide a mechanism for evaluating copper-cable conditions.
The 138-QFN construction concentrates four network ports in a 12 x 12 mm surface-mount footprint. This integration is useful when a system needs several 10/100/1000BASE-T interfaces but cannot accommodate four discrete PHY packages. QGMII provides the high-speed parallel digital interface between the PHYs and a switching or host SoC, allowing the Ethernet media interface to remain separated from the system data path. Exact clocking, register, electrical, and thermal limits should be confirmed against the manufacturer datasheet before schematic or layout release.
Typical deployments include carrier access equipment, broadband gateways, enterprise switching systems, server or data-center networking, wireless-infrastructure backhaul, and industrial communication equipment. The absence of Synchronous Ethernet in the -14 configuration may suit designs that derive synchronization elsewhere. Designers operating synchronous networks should evaluate a SyncE-capable configuration rather than assuming equivalent timing behavior.
Layout quality is critical because four high-speed copper transceiver channels coexist on one compact package. Follow the manufacturer’s reference schematic and layer stack-up, provide clean separation between analog and digital supply domains, and observe high-speed differential routing and controlled-impedance guidance. Validate magnetics, clocking, reset behavior, and firmware configuration during hardware bring-up.
This product overview combines the manufacturer’s device positioning, package identity, interface capabilities, application targets, and cross-reference findings with practical guidance for evaluating the VSC8514XMK-14 in multiport Gigabit Ethernet equipment.
Alternativas directas para VSC8514XMK-14 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con VSC8514XMK-14 (mismo factor de forma y huella) — difiere en Package.
VSC8514XMK
✅ Sustitución directaConsulte el precio
Ver hoja de datos →VSC8514XMK-03
✅ Sustitución directaConsulte el precio
Ver hoja de datos →VSC8514XMK-11
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
VSC8514XMK-14 Especificaciones
| Ethernet Port Count | 4 ports |
| Supported Ethernet Rates | 10/100/1000BASE-T |
| Media Type | Copper Ethernet |
| Upper-Layer Interface | QGMII |
| Synchronous Ethernet | Not supported in the -14 configuration |
| Temperature Class | Industrial temperature |
| Encapsulado | 138-QFN (12 x 12 mm) |
| Tipo de montaje | Surface mount |
| Power Management | ActiPHY low-power operation |
| Cable Diagnostics | VeriPHY |
| TDM Backhaul Support | Supported |
| Wireless Base Station Support | Supported |
| Carrier Application Support | Supported |
Guía de configuración de pines de VSC8514XMK-14 138-qfn (12 x 12 mm)
Configuración de pines para VSC8514XMK-14 (encapsulado 138-qfn (12 x 12 mm)). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para VSC8514XMK-14.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
VSC8514XMK-14 es adecuado para 6 aplicacións: Carrier Ethernet Access Equipment, Enterprise Network Edge Equipment, Broadband Gateway and ONT Equipment, Wireless Base Station Backhaul, Data Center Network Interface, Industrial Multiport Ethernet Control.
Carrier Ethernet Access Equipment
The VSC8514XMK-14 fits carrier access platforms that require four Gigabit Ethernet copper ports in a compact surface-mount footprint. Its four integrated 10/100/1000BASE-T PHYs reduce the number of discrete network interfaces, while QGMII supplies a high-speed parallel path to a switching or aggregation SoC. The industrial-temperature ordering option suits equipment expected to operate outside consumer-only temperature conditions. Because the -14 version does not include Synchronous Ethernet, carrier designs requiring recovered or distributed timing should select a SyncE-capable configuration or provide the synchronization architecture externally.
Recomendado
Enterprise Network Edge Equipment
For enterprise gateways, access switches, and network-edge appliances, the VSC8514XMK-14 provides four Gigabit Ethernet ports without requiring four separate PHY packages. The QGMII interface allows a host processor or dedicated switching silicon to manage traffic while the PHYs handle the copper physical layer. Integrating four channels into a 138-QFN package measuring 12 x 12 mm supports compact board layouts, although the copper-channel density increases routing and return-path sensitivity. Follow the manufacturer’s controlled-impedance and layer-stack recommendations to preserve signal integrity across all four ports.
Recomendado
Broadband Gateway and ONT Equipment
The VSC8514XMK-14 is suited to broadband gateways and network termination equipment requiring several Gigabit copper service ports. Four integrated PHYs can support LAN, management, or uplink connections while QGMII provides a scalable interface to the gateway’s host processor. Its low-power focus and ActiPHY capability are valuable in access equipment where unused links may be monitored or placed into reduced-power states. Actual power savings depend on negotiated link state, firmware policy, and the complete board design, so validate disabled-link behavior against the product operating requirements.
Recomendado
Wireless Base Station Backhaul
The VSC8514XMK-14 can support four Gigabit Ethernet interfaces in wireless base-station backhaul equipment where multiple service or aggregation links must terminate on one board. The quad-port architecture simplifies physical implementation while QGMII connects the PHYs to a capable network SoC. TDM backhaul support is identified for the VSC8514 family, making the device relevant to transport-oriented designs. Because the -14 configuration omits Synchronous Ethernet, timing requirements must be evaluated carefully; use an external synchronization path or a suitable family option when the system depends on SyncE.
Recomendado
Data Center Network Interface
The VSC8514XMK-14 can consolidate four 10/100/1000BASE-T interfaces in data-center appliances, management controllers, or dedicated network-access modules. QGMII gives the host processor a direct high-speed digital connection to the four copper PHYs, while the single 138-QFN package limits board-area expansion compared with discrete implementations. Care is required because four high-speed channels, magnetics, clocking, and power delivery compete for routing space on a 12 x 12 mm device. Preserve the manufacturer’s reference topology, keep sensitive clock and Ethernet routes isolated, and validate each port across intended cable lengths and data rates.
Recomendado
Industrial Multiport Ethernet Control
The VSC8514XMK-14’s four integrated Gigabit PHYs and industrial-temperature ordering option make it a candidate for industrial controllers, factory gateways, and multi-sensor network aggregation equipment. Consolidating four copper interfaces into one package simplifies enclosure space while VeriPHY provides cable-diagnostic functionality that can assist field installation and maintenance. The QGMII host connection keeps high-throughput traffic processing away from the physical layer. Verify the exact electrical limits, thermal conditions, isolation strategy, and cable reach for the completed industrial system rather than assuming standard office-network performance.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para VSC8514XMK-14 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | VSC8514XMK | VSC8514XMK-03 | VSC8514XMK-11 |
|---|---|---|---|---|
| Package | 138-QFN (12 x 12 mm) | 138-QFN (12 x 12 mm) | 138-QFN (12 x 12 mm) | 138-QFN (12 x 12 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Ethernet Port Count | 4 ports | 4 ports | 4 ports | 4 ports |
| Supported Ethernet Rates | 10/100/1000BASE-T | 10/100/1000BASE-T | 10/100/1000BASE-T | 10/100/1000BASE-T |
| Upper-Layer Interface | QGMII | QGMII | QGMII | QGMII |
| Cable Diagnostics | VeriPHY | VeriPHY | VeriPHY | VeriPHY |
| Low-Power Feature | ActiPHY | ActiPHY | ActiPHY | ActiPHY |
Diferenciadores clave
- Four Gigabit Ethernet PHYs in one compact package (frente a VSC8502XML)
- Industrial-temperature ordering option (frente a VSC8514XMK)
- QGMII connectivity with carrier-oriented features (frente a VSC8514XMK-03)
Notas de diseño
Implement the manufacturer’s reference layout for the 138-QFN package, including its 12 x 12 mm land pattern, exposed-pad connection, via arrangement, and component clearances. Preserve the specified layer stack-up and controlled-impedance geometry for QGMII and copper interfaces. Because four high-speed channels are concentrated in one footprint, deviations from the reference stack can affect insertion loss, crosstalk, and clock margin across all ports.
Route QGMII and clocks as controlled-impedance nets with continuous reference planes and the shortest practical connections to the PHY. Keep switching-noise sources away from the copper-channel section, observe the manufacturer’s clock and trace-length guidance, and avoid splits or stubs in high-speed paths. Validate signal integrity at QGMII interfaces with suitable test points, then repeat measurements after magnetics and connector placement are finalized.
Follow the manufacturer’s power-network topology for analog and digital supply domains, including the placement of bulk and high-frequency decoupling capacitors. Provide the exposed thermal pad with the recommended via pattern and copper area. Estimated: if the completed design dissipates 2.5 W and the effective system thermal resistance is 30 C/W, the estimated junction-temperature rise is 75 C above ambient; verify this budget against the actual stack-up, airflow, and device thermal limits before release.
Do not treat two VSC8514 suffix codes as interchangeable solely because they use the same 138-QFN footprint. The -14 ordering option is identified as industrial temperature without SyncE, while other suffixes may change temperature grade, timing, synchronization, or related configuration. Review the complete ordering table in Microchip datasheet VMDS-10423 and retest clocking, firmware, recovery behavior, and synchronization before approving a substitution.
Información de cumplimiento
The product is described as an industrial-temperature device, but no specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status was identified for this ordering code.
