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VSC7390XHO - 24-Port Gigabit Ethernet Switch | Microchip
The Microchip Technology VSC7390XHO is a 24-port integrated Layer-2 Gigabit Ethernet smart switch with integrated copper transceivers, supplied in a 596-BGA package measuring 35 mm by 35 mm. The device provides four Gigabit Ethernet ports and 48 integrated tri-speed copper transceivers supporting 10/100/1000 Mbps operation. Its IEEE 802.3ab-compliant Gigabit Ethernet PHYs make it suitable for systems that require local switching, copper media access, and integrated network-interface functionality in one package. 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.
VSC7395XYV - 5+1 Gigabit Ethernet Switch | Microchip
Microchip Technology VSC7395XYV is an integrated 5+1-port Gigabit Ethernet switch with five tri-speed copper PHYs, one RGMII/GMII interface, nonblocking wire-speed switching, and a 364-BGA (23x23) package. It operates from a single 3.3 V supply and provides five IEEE 802.3ab-compliant 10/100/1000 Mbps copper ports. An integrated Gigabit Ethernet switch is a network-interface IC that combines multiple Ethernet physical-layer transceivers, frame-processing logic, and a switching fabric in one device. Within the product hierarchy, it is an Ethernet switch, network interface IC, communications semiconductor, and power-management-dependent mixed-signal component designed for telecommunications and embedded networking equipment. The principal features include five integrated copper transceivers, one RGMII/GMII tri-speed port, support for 10, 100, and 1000 Mbps operation, nonblocking wire-speed performance, and a single 3.3 V supply. The copper interfaces are identified as IEEE 802.3ab compliant. Its 364-BGA package provides a high pin count suitable for parallel data, clock, control, power, and ground connectivity. Technically, the device consolidates multiple PHY channels and switch resources on one silicon die, reducing the number of separate Ethernet components required in a multiport design. The RGMII/GMII port provides a flexible processor- or switch-facing uplink when the five copper ports are used for downstream connections. Exact clocking, latency, MAC-table, management-interface, and power-consumption details require confirmation in the manufacturer documentation and were not present in the supplied excerpts. Typical applications include industrial Ethernet gateways, telecommunications access equipment, embedded routers, network-interface controllers, and managed switching products. Its five copper PHYs suit equipment that must connect several wired endpoints while retaining a high-speed uplink through RGMII or GMII. The obsolete lifecycle status means new designs should confirm availability, lifecycle options, or a supported successor with Microchip before committing to the part. Designers should pay particular attention to the 364-BGA escape routing, high-speed RGMII/GMII signal integrity, power-plane integrity, and thermal performance. Because the VSC7395XYV is listed as end-of-life and obsolete by verified sources, board revisions should preserve the footprint and power architecture when long-term maintenance is required. This page consolidates the verified port, speed, voltage, package, lifecycle, and environmental information with same-family replacement context and practical design guidance. It also clearly identifies parameter gaps, avoiding unsupported claims about latency, management features, pricing, or full pin-level connectivity.
VSC7398XYU - 8-Port Gigabit Ethernet Switch | Microchip
Microchip Technology VSC7398XYU is an 8-port Gigabit Ethernet switch with integrated PHYs, providing eight tri-speed 10/100/1000 Mbps copper Ethernet ports in a 757-BGA (40x40 mm) package. The device is based on the SparX-G8e enhanced Gigabit Ethernet switching architecture and supports nonblocking wire-speed switching across eight ports. Its copper transceivers are IEEE 802.3ab compliant, allowing the switch to support Gigabit Ethernet links without requiring separate external PHY devices for each copper port. An Ethernet switch is a networking semiconductor that connects multiple Ethernet endpoints through a shared switching fabric. It inspects incoming Ethernet frames and forwards traffic toward the appropriate destination port, while also handling other Layer 2 functions implemented by the device. The VSC7398XYU sits in the hierarchy of Ethernet interface integrated circuits, network switches, interface ICs, semiconductors, and embedded networking equipment. Integrating the switch function and physical-layer transceivers into one device simplifies hardware design in gateways, industrial controllers, access equipment, and embedded network systems. The principal verified features are the eight integrated Gigabit Ethernet ports, support for 10, 100, and 1000 Mbps operation, nonblocking wire-speed performance, and IEEE 802.3ab-compliant copper transceivers. All eight ports support copper connectivity through integrated PHYs. This integration reduces the number of separate network interface devices required when several Ethernet connections must terminate on one circuit board. The exact switching fabric throughput, latency, SRAM organization, voltage ratings, and management-interface details are not included in the supplied verified data and therefore require confirmation from the manufacturer datasheet. The SparX-G8e implementation consolidates switching and transceiver functions within a single highly integrated mixed-signal network IC. This architecture is appropriate for equipment requiring multiple Ethernet ports but limited board space, such as compact access points, industrial communication controllers, and embedded gateways. Because the copper PHYs are integrated, board-level design must account for the device's thermal behavior, high-speed differential routing, magnetics or coupling requirements, controlled impedance, and layout practices specified by Microchip. The supplied data does not provide the complete reference design or pin-level electrical constraints, so those details should be obtained from the official documentation before schematic capture. Typical applications include eight-port industrial Ethernet switching, embedded control and test systems, telecom access equipment, industrial automation gateways, network appliances, and compact embedded communication platforms. The eight-port configuration is particularly useful when a system must connect controllers, sensors, service equipment, and supervisory computers through isolated Ethernet interfaces. Using a nonblocking, wire-speed switch allows traffic to be aggregated while avoiding the component count of eight standalone Ethernet interface devices. Designers should obtain the official VSC7398 product brief, datasheet, CAD models, and reference schematic before committing the 757-BGA footprint. The supplied distributor information identifies the package as 757-BGA (40x40), but no verified pinout, power-supply values, maximum copper-cable length, operating-temperature range, or recommended magnetics data were provided. Those parameters must be verified rather than inferred because the Ethernet PHYs, supply rails, clocking, and high-speed copper interfaces determine whether a particular board design will meet system requirements. This page consolidates the verified manufacturer and distributor findings for the VSC7398XYU, explicitly distinguishes confirmed specifications from missing data, and records the product's NRND status. It also provides engineering-focused application guidance and a source-traceable comparison framework. No unsupported drop-in alternatives, package substitutions, pricing values, pin assignments, or unverified performance claims are presented.
VSC7422XJG-04 - 25-Port GbE Switch, 12 Cu PHY | Microchip
The Microchip VSC7422XJG-04 is a fully integrated 25-port Gigabit Ethernet (GE) Layer-2 switch with 12 integrated copper PHYs in a single 672-HSBGA (27x27 mm) package, designed for industrial-temperature networking equipment. According to the manufacturer datasheet, this device operates from a 1V supply and combines 12 triple-speed (10/100/1000 Mbps) copper PHYs with up to 25 SerDes/SGMII/QSGMII-capable ports, delivering the industry's first single-chip 25-port GE switch solution. An Ethernet switch IC such as the VSC7422 sits at the heart of managed and unmanaged enterprise, industrial, and small-business networking gear. As a Layer-2 switch, it forwards Ethernet frames at wire speed, enforces VLAN/QoS policies, learns and ages MAC addresses, and provides traffic-class prioritization. Within the broader component taxonomy, the VSC7422XJG-04 is an integrated Ethernet switch IC, a sub-category of interface ICs, descended from telecom and networking ASICs and ultimately from general-purpose digital semiconductors. Key features include industrial-grade -40C to +85C operation, 12 integrated 10/100/1000BASE-T copper transceivers eliminating the need for an external PHY bank, support for 1G/2.5G SerDes plus SGMII/QSGMII mac interfaces on remaining ports, and a flexible unmanaged-L2 feature set. Combined with a companion device such as the VSC8512 (a 12-port copper PHY from the same Microchip SparX-IV family), designers can build a 25-port switch using only two ICs, shrinking BOM cost and PCB area versus discrete-architectures. Architecturally, the VSC7422XJG-04 integrates an L2 forwarding engine, dedicated per-port packet buffers, on-chip termination, and a SERDES physical layer. The device is targeted at designs that need a moderate-to-high port count, unmanaged or lightly-managed switching, and industrial-environment ruggedness without the cost of enterprise-grade managed switches. Typical applications include industrial Ethernet switches, factory-floor networking equipment, IP-surveillance back-haul switches, smart-grid gateways, and small-business / SMB unmanaged switches. For designs requiring 2.5G uplinks, the SERDES lanes can be wired to external PHY or interconnect devices. The 672-HSBGA package demands careful PCB layout: a 4-layer minimum stack-up with an unbroken GND/VDD power island under the exposed die is required to meet IEEE 802.3 return-loss and emission targets. When laying out a VSC7422XJG-04 PCB, design engineers should observe controlled-impedance routing on all copper traces (100-ohm differential for MDI pairs; 50-ohm single-ended for SERDES), maintain at least 200-mil separation between analog/digital grounds unless joined at a single ferrite, and provide sufficient thermal vias under the 672-HSBGA to keep junction temperature within margin when driving all 12 copper ports simultaneously. This page synthesizes distributor pricing, drop-in alternatives, and practical PCB/thermal design notes not found in the manufacturer datasheet alone.
VSC7511XMY - 4-Port Gigabit Ethernet Switch | Microchip
The Microchip Technology VSC7511XMY is an unmanaged 4-port Layer-2 Gigabit Ethernet switch with four integrated copper PHYs or four SGMII interfaces in a 172-pin QFN package with an exposed pad. It combines four Gigabit Ethernet ports, hardware-assisted Layer-2 forwarding, 1G/6G SerDes capability, and PTP hardware timestamping in one package. The device is positioned as a low-power switching solution for industrial Ethernet equipment. A Gigabit Ethernet switch is a network-semiconductor device that receives Ethernet frames on one or more ports, examines Layer-2 information, and forwards frames to the appropriate destination ports. The VSC7511XMY belongs to the Ethernet switch hierarchy within interface ICs and is intended for compact embedded systems requiring multiple Gigabit Ethernet connections without a separate external switch chipset. Its four integrated copper PHYs simplify implementation because each port includes the physical-layer interface required for a copper Ethernet connection. Alternatively, the device supports four SGMII interfaces for systems that use serial SerDes connections rather than integrated copper ports. This flexibility permits one switching device to address multiple industrial networking architectures. The verified source material also identifies 1G/6G SerDes operation and hardware timestamping support for PTP-oriented equipment. The switch includes basic and advanced classifiers that determine frame properties such as VLAN membership, QoS class, and drop precedence. These classifications support policing, frame marking, statistics collection, security enforcement, Layer-2 forwarding, and frame rewriting. Such Layer-2 services make the device suitable for industrial gateways, automation controllers, communication equipment, and embedded network appliances where deterministic Ethernet behavior is valuable. Typical uses include industrial Ethernet switches, factory-floor gateways, programmable automation controllers, transport and infrastructure equipment, and embedded telecom or test systems. In each case, four integrated ports can reduce the number of external PHY devices while preserving Layer-2 switching throughput. The integrated-PHY configuration is particularly useful where board area and component count are constrained. Designers should confirm the exact pin assignments, exposed-pad connection, supported SGMII mode, clocking arrangement, and thermal-management requirements from the manufacturer datasheet before layout. Because this is a high-pin-count mixed-signal network IC, careful differential-pair routing, uninterrupted supply planes, solid grounding, and compliance testing for the intended copper Ethernet environment are essential. This page consolidates the verified distributor, manufacturer, and cross-reference information with practical application guidance, a parameter comparison, and explicit data-gap notes. It distinguishes verified VSC7511XMY capabilities from broader switch devices that are not confirmed as pin-to-pin replacements.
VSC7512XMY - 10-Port Gigabit Ethernet Switch | Microchip
Microchip Technology VSC7512XMY is an unmanaged Layer-2 Gigabit Ethernet switch with 10 ports and four integrated copper PHYs, supplied in a 172-QFN dual-row surface-mount package with an exposed pad. The verified product information identifies a 1.2 V supply and an operating-temperature range of -40°C to +125°C, making the device suitable for industrial networking equipment requiring integrated copper connectivity and an extended temperature range. A Gigabit Ethernet switch is a network-interface semiconductor that forwards Ethernet frames between connected devices at Layer 2 of the OSI model. Unlike a routed network processor, the VSC7512 provides transparent frame switching without adding IP-routing functions. Its integrated copper PHYs combine digital switching, physical-layer transceiver functions, and copper media interfaces within one device, reducing the number of external network components required in compact industrial Ethernet designs. The primary features verified for the VSC7512 include full integration of four copper PHYs and a total of 10 Gigabit Ethernet ports. The device is marketed as an unmanaged industrial Ethernet switch, so its core function is local frame forwarding rather than configuration through a network management interface. The manufacturer describes it as a low-power Gigabit Ethernet switching solution, differentiating it from designs that require multiple discrete PHY components for copper ports. The VSC7512 belongs to the Ethernet-switch and network-interface IC hierarchy, where it combines a Layer-2 switch, integrated physical-layer transceivers, and copper Ethernet ports in one package. This integration supports designs for industrial control cabinets, factory automation networks, and embedded Ethernet equipment. Its -40°C to +125°C operating range makes it appropriate for environments where commercial-temperature networking components may be insufficient, although designers should still verify complete system thermal requirements. Typical uses include unmanaged industrial Ethernet switches, factory-floor connectivity equipment, embedded control systems, and compact network-interface appliances. The VSC7512 can reduce board area by integrating four copper PHYs, but the exposed-pad package still requires careful PCB thermal design, adequate copper area, and verification of the manufacturer's recommended layout and reflow conditions. Designers should follow the manufacturer datasheet for the complete 172-pin assignment, exposed-pad connection, power-supply decoupling, magnetics interface, and layout guidance. The supplied web excerpts do not include a verified pin-by-pin map or detailed electrical limits, so those values must be checked against the official datasheet before schematic capture or PCB release. This product record consolidates verified manufacturer and distributor information, purchase context, technical applications, and selection guidance. It also distinguishes documented capabilities from unavailable details, avoiding unsupported claims about pricing, pin assignments, compliance, and substitute devices.
VSC7513XKS - 8-Port Industrial Ethernet Switch | Microchip
The Microchip Technology VSC7513XKS is an 8-port industrial Ethernet switch with 4 integrated copper PHYs. It supports a combination of 1G and 2.5G Ethernet ports and is designed for industrial Ethernet and SMB switching systems. The device is packaged as a 256-pin PBGA measuring 17 mm by 17 mm. Its feature set includes VLAN and QoS processing, intelligent frame processing, egress frame manipulation, security functions, and distributed timing technology for industrial applications. An Ethernet switch is a semiconductor that connects multiple network nodes and forwards Ethernet frames according to learned or configured MAC addresses. The VSC7513 family belongs to the broader category of Ethernet interface ICs, network switches, communication semiconductors, and industrial automation components. Unlike a simple physical-layer transceiver, this device combines multiple Ethernet ports, frame processing, traffic management, and timing functions within one switching platform. The VSC7513XKS provides 8 switching ports and integrates 4 copper PHYs, allowing industrial equipment or network infrastructure to use a compact switch implementation. Its combination of 1G and 2.5G Ethernet support is relevant for factory automation, industrial gateways, embedded systems, and SMB equipment that need managed local connectivity. The manufacturer describes the device as supporting industrial and enterprise Ethernet switching features. The switch uses multi-stage TCAM technology for VLAN and QoS processing. This supports traffic classification and differentiated service delivery. Intelligent frame processing provides security-related capabilities, while egress frame manipulation can support traffic shaping and system-level network requirements. The integrated distributed timing technology is particularly relevant to industrial systems that need deterministic synchronization across connected equipment. VSC7513XKS is intended for applications where a compact, highly integrated switching device can simplify board design compared with a discrete collection of Ethernet PHYs and supporting controllers. The 256-PBGA package is a substantial surface-mount package, so PCB layout must provide adequate thermal and electrical performance and must follow the manufacturer’s land pattern and reference design guidance. The supplied web sources confirm the function, port configuration, integrated PHY count, package format, and core switching capabilities; detailed electrical limits, pin assignments, thermal ratings, clocking requirements, and power-consumption values were not included in the provided data. This page is intended to support initial engineering selection for the VSC7513XKS. Before committing to a design, consult the official VSC7513 data sheet, errata, hardware design guidance, and reference designs to verify power rails, interfaces, timing constraints, package layout, thermal performance, and software support. The device should be selected primarily when its integrated 8-port industrial Ethernet architecture and 1G/2.5G flexibility are required, rather than as a generic low-cost Ethernet switch.
VSC7514XKS - 10-Port 2.5G Industrial Ethernet Switch | Microchip
The Microchip Technology VSC7514XKS is a 10-port Gigabit Ethernet and SMB managed-switch IC supporting a combination of 1G and 2.5G Ethernet ports, supplied in a 256-pin PBGA package measuring 17 mm by 17 mm. The device is positioned for industrial and enterprise Ethernet systems that require multiport Layer 2 switching, integrated copper PHYs, and support for both Gigabit Ethernet and 2.5G Ethernet links. Its 10-channel network-switch architecture consolidates several Ethernet interfaces into one dedicated switching component. A managed Ethernet switch is a semiconductor that receives Ethernet frames from multiple ports, examines destination addresses, and forwards traffic to the appropriate port or ports. In the broader product hierarchy, the VSC7514XKS is an Ethernet interface IC, then a network switch IC, then an integrated circuit and semiconductor. Unlike a discrete Ethernet PHY, this device combines multiple port interfaces, integrated copper PHYs, and switching functions within one package. The VSC7514 family provides 10 Gigabit Ethernet or SMB ports, with four integrated copper PHYs identified in the distributor product description. This combination lets equipment designers support mixed-speed industrial networks without implementing every physical-layer function as a separate device. The 256-PBGA package provides the interconnect density needed for the device's parallel data paths, power connections, management signals, and reference clock circuitry. The switch is designed for industrial and enterprise Ethernet equipment, where local port aggregation and deterministic network segmentation can simplify system architecture. Its combination of 1G and 2.5G links is relevant to machine vision, industrial automation, factory gateways, network infrastructure, and embedded edge equipment. Compared with a collection of discrete PHY components and an external switching ASIC, an integrated managed-switch IC can reduce board-level component count while centralizing network configuration. The VSC7514XKS is also suitable for embedded systems that need multiple copper Ethernet ports, including industrial controllers, communication equipment, and network appliances. System designers should consult the Microchip product page and the VSC7514 datasheet for the authoritative port map, electrical limits, clock requirements, initialization sequence, package ball map, and supported software configuration before releasing a PCB. A 256-pin PBGA requires careful PCB layout, continuous high-speed return paths, controlled reference-clock routing, and a thermal design appropriate for the device's dissipation. Differential Ethernet pairs should be routed according to the Microchip reference design and signal-integrity guidance. Adequate layer stacking, copper thermal spreading, and locally placed decoupling are especially important because this package concentrates many interfaces in a small area. This product page consolidates the verified manufacturer and distributor information into an application-oriented summary, highlights where design data is still required, and separates documented capabilities from unverified assumptions. It also documents why the listed competitor Ethernet devices are not presented as drop-in replacements without package, ball-map, firmware, and feature-level verification.
VSC8221XHH - Low-Power Gigabit Copper SFP PHY | Microchip
Microchip Technology VSC8221XHH is a low-power Gigabit Ethernet over copper PHY with a 1.25 Gbps SerDes, a single 3.3 V supply, and less than 700 mW power consumption. It supports 10BASE-T, 100BASE-TX, and 1000BASE-T through a 100-TFBGA 9 x 9 mm package. The device is designed for copper SFP, GBIC, and media-converter equipment. A copper Ethernet PHY is a physical-layer transceiver that translates digital MAC data into signals suitable for twisted-pair cabling and recovers those signals at the receiving endpoint. The VSC8221 occupies the PHY layer within the Ethernet hierarchy: an Ethernet transceiver integrates a physical-layer device with a SerDes interface for connection to a media-access controller or switching fabric. Its purpose is to provide interoperable copper connectivity while limiting module power and board area. The principal feature is support for triple-speed copper Ethernet at 10, 100, and 1000 Mb/s. Its 1.25 Gbps SerDes supports both SGMII and SerDes-to-Category 5 operating modes, allowing the same PHY to be used in SFP and media-converter designs. The manufacturer identifies the part as the smallest, lowest-power Gigabit Ethernet-over-copper PHY in its product family and as suitable for demanding cable-plant environments. The VSC8221 is designed to support 140 m of Category 5 unshielded twisted-pair cable while meeting stringent SFP power-consumption requirements. It also supports PICMG 2.16 and 3.0 Ethernet backplanes at approximately 500 mW and provides tolerance to NEXT, FEXT, echo, and system noise. These characteristics make the PHY appropriate where copper reach, electromagnetic-noise immunity, and compact module power are simultaneous design priorities. Typical uses include 1000BASE-X copper SFP modules, GBIC-style copper interfaces, Ethernet media converters, and backplane or embedded networking equipment. The same package can support a MAC-to-copper connection through 1000BASE-X SerDes operation or a MAC connection through the four-pin or six-pin SGMII interface. Automatic or user-controlled SerDes behavior provides additional flexibility during system bring-up. When designing with the VSC8221, verify the selected magnetics, impedance-controlled copper routing, reference clock, and SGMII or SerDes interface against the manufacturer data sheet. A 3.3 V-only architecture simplifies supply design, but the complete module still requires careful thermal, isolation, and return-path planning under sustained 1 Gb/s traffic. This page consolidates the verified manufacturer and distributor information for VSC8221XHH, including power, interface, speed, cable-reach, pricing, and application details. It also identifies the limits of the available substitute data so engineers can distinguish confirmed same-family options from unsupported cross-brand replacements.
VSC8224XHG - 4-Port Gigabit Ethernet PHY | Microchip Technology
Microchip Technology VSC8224XHG is a four-port Gigabit Ethernet transceiver IC integrating four independent 10BASE-T, 100BASE-TX, and 1000BASE-T PHYs with four 1000BASE-X-compatible serializer/deserializer interfaces in a thermally enhanced 260-pin plastic ball grid array package. The device operates from a 3.3 V supply and combines copper and fiber-oriented network connectivity in one 19 mm package. An Ethernet PHY is a physical-layer interface IC that converts digital MAC data into electrical signaling for a network medium and converts received signaling back into digital data. The VSC8224 belongs to the Ethernet interface IC hierarchy, where each integrated transceiver supports a physical port while coordinating with an external or embedded media-access controller through RGMII or RTBI-compatible interfaces. The principal feature of VSC8224XHG is port density: four independent triple-speed Ethernet transceivers are integrated into one device. Each port supports 10 Mbps, 100 Mbps, and 1 Gbps operation. Four 1000BASE-X-compatible SerDes channels provide an additional high-speed physical interface, while automatic or user-programmable RGMII timing compensation helps accommodate MAC-to-PHY timing differences. On-chip series termination resistors also reduce the need for external receive-side termination components. The thermally enhanced 260-pin PBGA package is intended for high-port-density equipment where four separate physical-layer devices would consume excessive board area. Its four copper PHYs suit switching and routing platforms, while the 1000BASE-X-compatible SerDes channels can support fiber-oriented links when paired with appropriate optical and physical-layer circuitry. The integrated architecture reduces component count and simplifies multiport routing-board layouts. Typical applications include four-port Gigabit Ethernet switches, routers, network interface cards, industrial Ethernet equipment, and communications infrastructure. Design teams must preserve the manufacturer's recommended high-speed layout, provide suitable power and ground distribution, and keep Ethernet magnetics and signal-routing paths compact. Because the package exposes 260 balls, careful thermal management and via-array layout are essential. This page consolidates verified distributor pricing, package information, functional application guidance, and cross-reference findings that are not presented together in a typical distributor listing. It also distinguishes the confirmed VSC8224XHG orderable variant from related VSC8224 documentation and avoids asserting unverified pin-level substitutions.
VSC8256EV - Quad 1G/10G Serial Repeater | Microchip Technology
The Microchip Technology VSC8256EV is a quad 1G/10G serial-to-serial, protocol-agnostic repeater/retimer with hardware-based host-side-only 10GBASE-KR auto-negotiation and training. It is designed for board-level signal integrity applications requiring retiming of high-speed serial links. The device supports 10.3125 Gbps LAN mode, 9.95328 Gbps WAN mode, and 1.25 Gbps mode, according to the available VSC8256 datasheet summary. Its signal-conditioning architecture is protocol agnostic, allowing it to be used with multiple serial interfaces rather than being restricted to one specific protocol. The VSC8256 is associated with a small-form-factor, low-power FCBGA package, making it suitable for compact telecommunications and networking equipment. The VSC8256EV ordering code is listed by Microchip Technology and is available through authorized distributors and distributor marketplaces. The core engineering benefit of this component is that it combines multi-lane serial retiming with integrated 10GBASE-KR auto-negotiation and training, reducing the amount of external protocol-specific support required in board-level designs. Typical implementation areas include 10G Ethernet backplanes, serial links between cards, telecommunications equipment, and other systems where loss, skew, or jitter can compromise high-speed transmission. Engineers should confirm the exact package dimensions, pin assignments, thermal limits, and electrical characteristics against the manufacturer datasheet before layout or production release.
VSC8257EV - Quad 1G/10G Ethernet PHY | Microchip Technology
The Microchip Technology VSC8257EV is an evaluation platform for the VSC8257 quad 1G/10G serial-to-serial Ethernet PHY, featuring VeriTime IEEE 1588v2 network timing and support for dual-sided 10GBASE-KR in a low-power FCBGA device. The verified distributor listing identifies VSC8257EV as a telecom interface IC, while the manufacturer page describes the underlying VSC8257 PHY. The product therefore belongs to the Ethernet physical-layer and telecom-interface ecosystem rather than the general-purpose processor or memory categories. A serial-to-serial Ethernet PHY is an interface integrated circuit that converts digital data into high-speed electrical signaling for network equipment. The VSC8257 family supports 1G and 10G Ethernet links and incorporates Microchip’s VeriTime technology for IEEE 1588v2 network timing. Its dual-sided 10GBASE-KR capability, auto-negotiation, and link training make it relevant to carrier-grade, enterprise, and industrial Ethernet systems where deterministic timing and interoperable backplane links are important. The verified product information identifies four PHY channels, 1G/10G operation, serial-to-serial Ethernet operation, IEEE 1588v2 timing support, dual-sided 10GBASE-KR, auto-negotiation, training, and a low-power FCBGA implementation. These features distinguish it as a multiport network interface rather than a single-port transceiver. The available evidence does not specify lane data rates in decimal form, power consumption, clock requirements, register depth, temperature grades, or individual ball assignments. Typical VSC8257EV evaluation use includes demonstrating 10GBASE-KR links between line cards, validating network timing behavior with VeriTime, testing auto-negotiation and training across backplanes, and bringing up multiport Ethernet equipment. Engineers can use the evaluation platform to examine signal integrity, clocking, firmware, board-level routing, and interoperability before integrating the production VSC8257 device into carrier, switching, or industrial network equipment. A key engineering caution is that evaluation-board access does not guarantee a pin-for-pin production-board replacement. Confirm the exact VSC8257 package, exposed-pad requirements, reference clocks, power rails, SerDes lane assignments, connector interfaces, and thermal constraints before committing a PCB layout. The provided sources do not include the complete schematic, bill of materials, pinout, or detailed electrical characteristics. This page consolidates the verified manufacturer and distributor information, identifies where published data is unavailable, and distinguishes the VSC8257 evaluation platform from verified drop-in alternatives. It is intended to support component identification and design planning without presenting unverified package, pricing, pinout, or cross-reference claims.
VSC8479YHQ-01 - 10G SFI4.1 SerDes Transceiver 195-FCBGA | Microchip
The Microchip Technology VSC8479YHQ-01 is a 1:16 / 16:1 multi-rate SerDes transceiver with integrated Clock and Data Recovery (CDR) and Clock Multiplier Unit (CMU), packaged in a 195-ball FCBGA measuring 12 mm x 12 mm. Operating continuously from 9.953 Gbps to 11.35 Gbps, the device supports SFI4.1 and SFI-5.1 interface standards with a 16-bit parallel datapath for 10 Gigabit Ethernet, SONET/SDH OC-192, OTN OTU2, and Fibre Channel applications. A SerDes (Serializer/Deserializer) is a mixed-signal integrated circuit that converts between parallel and high-speed serial data streams while embedding clock recovery, equalization, and line-coding functions. As a class of physical-layer (PHY) interconnect ICs, SerDes devices sit between the MAC/ASIC framer and the optical module, forming the bridge between the digital chip domain (typically LVDS/PECL parallel buses) and the analog serial optical/electrical domain. The VSC8479 family belongs to the multi-rate 10G transceiver category, which spans oversampled and bit-serial architectures for telecom and datacom line cards. Key features include integrated CDR with low-jitter performance, a reference-less or reference-clock CMU for synthesizing the line-side baud clock from a low-frequency system reference, programmable transmit pre-emphasis and receive adaptive equalization for backplane and optical reach extension, and an I2C/SPI management interface for system bring-up. The 195-FCBGA package uses controlled-collapse chip connection with flip-chip die attach, providing short electrical paths for multi-GHz signals and a thermal envelope suitable for forced-air-cooled line-card environments. Architecture-wise, the device integrates four physical lanes (per SFI4.1 direction) with 16-bit datapaths, internal AC-coupling, and on-chip termination. The 17 mm x 17 mm footprint described in vendor collateral refers to the bare die-area footprint class typical of FCBGA-195 assemblies, enabling cost and board-area reduction for SFP+/XFP module and small-form-factor line-card designs. Typical applications include 10G Ethernet SFP+ and XFP transceivers, OTN OTU2 line cards, SONET OC-192 short-reach modules, multi-rate muxponder/framer I/O, and 10G Fibre Channel host-bus adapters. Per the vendor product page, every device is tested at high speed to ensure production-grade performance. Designers should evaluate AC-coupling capacitor selection, PCB material (low-loss FR-4 or Megtron), and matched-length routing for the four differential lanes to meet SFI4.1 jitter masks. The integrated CDR reduces BOM by eliminating an external clock-recovery block. This page aggregates distributor stock, parametric drop-in alternatives, and engineering design notes that complement the Microchip datasheet and Mouser spec summary (msco-s-a0003388128-1).
VSC8479YY - 11.3 Gbps 1:16 Transceiver | Microchip Technology
Microchip Technology VSC8479YY is a telecom interface IC implementing a 1:16 transmit and 16:1 receive transceiver with integrated clock and data recovery unit (CDR) and clock multiplier unit (CMU). The device is supplied in a 244-pin FCBGA package measuring 17 mm by 17 mm, and a listed distributor specification identifies a maximum data rate of 11.3 Gbps. Its operating frequency begins at 9.953 Gbps according to the manufacturer product description. A high-speed serial interface transceiver is a semiconductor device that converts between parallel or narrower-width data paths and high-speed serial communication links. The VSC8479YY belongs to the broader interface IC and telecommunications IC hierarchy. Integrating the transceiver, CDR, and CMU functions in one package reduces the number of separate clock-recovery and multiplexing blocks required in a multi-lane optical or backplane interconnect system. The principal functional characteristics are a 1:16 parallel-to-serial transmission ratio, a 16:1 serial-to-parallel reception ratio, integrated clock recovery, and integrated clock multiplication. These functions support systems requiring multiple high-speed lanes to be aggregated or recovered efficiently. The 11.3 Gbps data-rate capability is particularly relevant to optical transport, backplane, and other high-bandwidth telecommunications infrastructure where parallel-to-serial conversion and deterministic clocking are required. The VSC8479 architecture integrates clocking with data conversion instead of treating the CDR and CMU as independent blocks. This combination is intended to provide a comprehensive interface solution for designs that need recovered clocks, multiplied reference clocks, and bidirectional lane conversion. Exact recovery ranges, jitter specifications, reference-clock requirements, lane polarity, voltage levels, and power consumption were not included in the supplied verified records and must therefore be confirmed in the manufacturer documentation. Typical implementation areas include telecommunications equipment, optical transport modules, network switching systems, and other multi-lane serial links that require parallel-to-serial and serial-to-parallel conversion. System designers should also account for the FCBGA package requirements, including fine-pitch escape routing, multilayer PCB construction, controlled impedance, and power and ground distribution across 244 package contacts. The principal design consideration is package integration. A 17 mm by 17 mm FCBGA requires careful PCB footprint design, thermal management, and high-density routing rules. Power rails, reference clocks, high-speed differential pairs, and control interfaces should be evaluated against the manufacturer's pinout, reference design, and layout guidance before schematic or PCB sign-off. This product page combines the verified Microchip product summary, distributor package information, availability references, and practical implementation guidance. It distinguishes published VSC8479 characteristics from parameters that still require datasheet confirmation and does not treat unverified substitute parts as drop-in replacements.
VSC8479YYY - 11.3 Gbps 16-Bit Transceiver | Microchip
The Microchip Technology VSC8479YYY is a 1:16 and 16:1 high-speed serial transceiver operating continuously from 9.953 Gbps to 11.3 Gbps, with integrated clock and data recovery, clock multiplication, and a 244-FCBGA package measuring 17 mm by 17 mm. It serves OC-192, 10GbE, and 10GFC-oriented signal-chain designs that require parallel-to-serial and serial-to-parallel conversion in one device. A high-speed transceiver is a semiconductor interface that converts wide parallel data into a high-speed serial stream and converts received serial data back into parallel form. The VSC8479 belongs to the broader transceiver and data-converter hierarchy while integrating timing-recovery functions needed to establish and recover a reliable high-speed data stream. Its 16-bit interface, continuous frequency coverage, and integrated CDR and CMU reduce the amount of external high-speed conversion circuitry required in communications equipment. Key features include a 1:16 transmit fanout, a 16:1 receive aggregation, a 16-bit parallel data path, and a documented continuous operating span of 9.953 Gbps to 11.3 Gbps. The device is identified as a single Ethernet-class port transceiver by Mouser and as a telecom IC transceiver by DigiKey. Its single-chip, 17 mm by 17 mm implementation is specifically presented as a way to reduce board area and system cost in compact, price-sensitive modules. The integrated clock and data recovery unit supports extraction or recovery of timing from the associated high-speed signal path, while the clock multiplier unit supplies the required derived clock functions. This integration can simplify synchronization architecture, but board implementation still requires careful high-speed layout, controlled impedance, short return paths, compliant clocking, power delivery, isolation, and signal-integrity verification. Exact power, voltage, pin, and environmental limits must be confirmed in the manufacturer datasheet before layout release. Typical uses include 10GbE and 10GFC optical-module electronics, OC-192 transport interfaces, FEC equipment, telecommunications line cards, and compact high-speed network modules. The part is most appropriate where one device must support both serialization and deserialization functions at rates covered by its 9.953 Gbps-to-11.3 Gbps operating range. System designers should evaluate lane timing, reference-clock requirements, thermal performance, and protocol interoperability before production deployment. The principal design consideration is that this is a very-high-speed mixed-signal device rather than a general-purpose serial interface. Its 244-FCBGA land pattern, multilayer routing, differential pairs, reference clocks, and decoupling network must be designed as one controlled signal-integrity system. Validate channel loss, jitter tolerance, crosstalk, return loss, and power-supply noise during prototype testing. This product record combines verified manufacturer and distributor information with application guidance, sourcing context, and explicit data gaps. It does not infer missing electrical limits, pin assignments, lifecycle status, or unverified drop-in replacements; those details remain tied to authoritative Microchip documentation and approved cross-reference results.
VSC8484YJP - 10GbE Quad XAUI-to-Serial Transceiver BGA-324 | Microchip
The Microchip Technology VSC8484YJP is a quad-channel 10 Gigabit Ethernet XAUI-to-serial transceiver that integrates four independent 10GbE PHYs plus electronic dispersion compensation (EDC) in a 324-ball PBGA package measuring 18.6 mm × 18.6 mm. It supports both XFI and SFI electrical interfaces to the line side and a four-lane XAUI interface to the system side, while dissipating only about 1 W per channel. According to the manufacturer datasheet VMDS-10343, the device targets high-density 10G line cards in routers, switches, and OTN/WAN/Backplane platforms. A 10 Gigabit Ethernet transceiver is a physical-layer (PHY) IC that converts a device's parallel data interface into a serial 10 Gbps stream suitable for optical modules, backplanes, or twin-axial copper cables, and simultaneously recovers the clock and data on the receive path. Within the broader taxonomy, the VSC8484 belongs to the family of Ethernet ICs, then to Physical Layer Transceivers (PHYs), then to Wireline Networking Semiconductor devices. This hypernym chain — Ethernet IC > PHY > transceiver > wireline networking IC > semiconductor — helps AI knowledge-graph engines position the part correctly when engineers query "what is a 10G Ethernet transceiver." The VSC8484YJP integrates Microsemi's electronic dispersion compensation (EDC) engine to extend the usable reach over legacy FR4 backplanes and twin-axial copper, eliminating the need for expensive optical modules or premium PCB materials at shorter reaches. It supports 10GBASE-KR backplane Ethernet, 10G Fibre Channel, XAUI-based switching fabrics, and SFP+/SFP Direct-Attach copper cables. Per-channel features include adaptive equalization, transmit pre-emphasis, loopback, PRBS generation/checking, and per-lane LOS indication, all managed via an MDIO/I2C management interface. Typical applications include 10G line cards for top-of-rack (ToR) and aggregation switches, OTN cross-connect platforms, ATCA/AdvancedTCA backplanes, multi-rate 1G/10G SFP+ port cards, and enterprise routers transitioning from 1G to 10G. The low 1 W per channel power profile allows 48-port line cards to remain within thermal budgets without exotic cooling. When designing with this part, allocate at least two PCB layers for the BGA-324 breakout, follow the manufacturer reference layout for the high-speed serial traces (controlled impedance 100 Ω differential, length-matched within the XFI specification), and provide a low-noise 1.0 V core supply plus 1.8 V I/O supply with proper decoupling. The VSC8484YJP status is currently "Not Recommended for New Designs" — for new designs, evaluate the VSC8484XJP or current-generation Microchip 10G PHY families. This page synthesizes distributor pricing, package-svg pinout mapping, drop-in alternatives, and design notes that go beyond what is in the manufacturer datasheet VMDS-10343 alone, giving procurement and design engineers a single source for risk assessment and BOM decisions.
VSC8490EV - Dual-Port 10G Ethernet Eval Board | Microchip
The Microchip Technology VSC8490EV is an evaluation platform associated with the VSC8490, a dual-port 10G Ethernet transceiver designed for electrical backplane and optical module host-card applications. The available product information identifies two 10G Ethernet ports, XFI/SFI-to-(R)XAUI signal conversion, and support for IEEE 1588 and MACsec within the VSC8490 transceiver family. The VSC8490EV package type, exact connector arrangement, and electrical limits are not published in the supplied manufacturer and distributor records, so they remain designated as data needed rather than inferred. A 10G Ethernet transceiver is a high-speed communications semiconductor that converts between serial network interfaces and parallel or widebus internal data paths. Within the broader hierarchy, the VSC8490 belongs to Ethernet physical-layer interfaces, interface controllers, network semiconductors, and integrated circuits. Its dual-port architecture allows two high-speed links to be evaluated on one hardware platform, which is useful when developing backplane equipment or optical module host cards. The VSC8490 family description specifically identifies XFI/SFI inputs and (R)XAUI outputs. XFI and SFI are serial interface formats commonly used between Ethernet line cards and optical modules, while (R)XAUI provides a widebus electrical interconnect suitable for backplane and chassis-oriented designs. The same source identifies compatibility work for SFP+ SR, LR, ER, and ZR fiber applications and describes EDC compensation as part of the family feature set. The family also provides IEEE 1588 timing support and MACsec functionality. IEEE 1588 capability is relevant to systems requiring synchronized network timing, while MACsec is the IEEE security mechanism for protecting Ethernet frames against unauthorized injection and eavesdropping. These capabilities make the evaluation platform relevant to precise timing, secure networking, line-card development, and optical transport prototyping. VSC8490EV is suitable for laboratory evaluation of dual-port 10G Ethernet links, optical module host cards, electrical backplane prototypes, SFP+ interface development, and secure network equipment. Engineers should confirm the board’s physical connectors, supported electrical standards, reference clock requirements, power input, operating temperature, and programming interface against the complete manufacturer documentation before using it in a production design. This page consolidates the verified manufacturer description, distributor inventory information, family-level interface details, sourcing links, and explicit engineering gaps for the VSC8490EV. It distinguishes documented facts from unavailable specifications so procurement and hardware teams can assess the evaluation board without mistaking unreported board details for guaranteed capabilities.
VSC8490YJU-17 - Dual-Port 10GbE PHY XFI/SFI to XAUI | Microchip
The Microchip VSC8490YJU-17 is a dual-port 10 Gigabit Ethernet PHY/transceiver from the VSC8489/VSC8490/VSC8491 family, supporting XFI/SFI to (R)XAUI conversion with integrated 1588 timestamping and MACsec (IEEE 802.1AE) hardware acceleration. The device is supplied in a 196-pin FCBGA (15x15 mm) package and operates from 1.0 V / 1.2 V supplies, targeting high-density 10G line cards, electrical backplanes, and SFP+/QSFP+ host-side interface applications. What is a 10G Ethernet PHY/transceiver? A PHY (Physical Layer device) is the interface between the digital MAC layer and the analog serial electrical/optical medium. Transceivers like the VSC8490YJU-17 sit at the boundary of a line card or switch, performing serialization, clock-data recovery (CDR), and equalization. The VSC8490YJU-17 additionally integrates MACsec line-rate encryption and IEEE 1588 hardware timestamping, which makes it a "secure PHY" rather than a bare transceiver. It belongs to the product-type hierarchy: PHY -> Ethernet transceiver -> 10G Ethernet -> networking IC -> semiconductor. Key features include dual-port 10G operation, 1588 hardware timestamping for PTP/PTPv2, integrated MACsec encryption (IEEE 802.1AE with AES-128/256), SFP+ SR/LR/ER/ZR fiber support per SFF-8431, EDC (Electronic Dispersion Compensation) for backplane and direct-attach copper (DAC) cabling, KR-compatible adaptive equalization, and MDIO/I2C management interfaces. SPI management is supported for host configuration. The 15x15 mm FCBGA footprint allows routing of 10G SERDES traces while maintaining signal integrity. Architecturally, the VSC8490YJU-17 uses Microchip's proven mixed-signal SERDES core with adaptive equalization, baseline-wander correction, and low-jitter PLL synthesis to meet IEEE 802.3ae 10GBASE-R compliance. Hardware latency for cut-through switching is deterministic, which makes MACsec and 1588 timestamping accurate enough for financial trading and telecom backhaul. Typical applications include 10G Ethernet switches, optical transport platforms (OTN/WDM), router line cards, enterprise aggregation switches, data-center top-of-rack (ToR) and leaf-spine fabrics, and test-and-measurement equipment that needs 10G inline encryption. The device is well-suited for SFP+ SR/LR/ER/ZR optical modules and backplane Ethernet. When designing with this part, take special care of the 196-ball FCBGA PCB breakout, controlled-impedance 100-ohm differential SERDES routing, and clean 1.0 V / 1.2 V power rails. Reference Microchip application note guidance for MACsec key-management integration and 1588 grandmaster configuration. This page consolidates distributor pricing, drop-in alternative review, and practical design considerations not contained in the manufacturer datasheet.
VSC8490YJU-17P Dual-Port 10GbE PHY | Microchip
The Microchip VSC8490YJU-17P is a dual-port 10 Gigabit Ethernet PHY transceiver from the VSC8489/8490/8491 family, supplied in a 196-pin FCBGA (15x15 mm) package. It interfaces a 10GbE host-side XFI/SFI or RXAUI backplane connection to two SFP+/10GBASE-R PHY lanes, supporting SFP+ SR/LR/ER/ZR fiber modules and EDC-corrected electrical backplane links. The device integrates 1588 Timing-over-Ethernet hardware timestamping and IEEE 802.1AE MACsec link-layer encryption, making it a flexible SerDes + PHY building block for carrier-grade Ethernet equipment. What is a 10GbE PHY? A PHY (Physical Layer device) is the lowest layer of the OSI networking stack. It converts digital MAC-layer data into analog signals suited to copper traces, direct-attach cables, or optical modules. The VSC8490YJU-17P belongs to the SERDES / Ethernet PHY / telecom interface IC family within Microchip's networking portfolio, sitting beneath the MAC and above the physical medium. Modern 10GBASE-R PHYs also integrate MACsec encryption and IEEE 1588 timestamping, which is why the VSC8490 is described as an XFI-to-(R)XAUI MACsec/1588 dual-port transceiver rather than as a plain PHY. Key features of the VSC8490YJU-17P include dual 10G lanes, integrated MACsec, 1588v1/v2 hardware timestamping, SFI/XFI host-side interface, (R)XAUI backplane support, SFP+ SerDes with adaptive equalization, and EDC (Electronic Dispersion Compensation) for KR-style backplane operation. Core supply voltages are 1.0V and 1.2V as documented on the Arrow listing, and the device uses an SPI management interface for register access. The VSC8490 architecture is built around independent per-lane SerDes cores with adaptive equalization, a 1588 timestamp engine, and a MACsec engine using AES-GCM-128 with support for 16+ SA contexts. Internal firmware-configurable equalization allows the same silicon to be tuned for short-reach copper and long-reach optical modules, simplifying SKU management across host-card designs. The MACsec block offloads per-packet encryption from the host CPU/ASIC, which is essential for backplane and metro Ethernet platforms where line-rate 10G encryption cannot burden the main processor. Typical applications for the VSC8490YJU-17P include 10G Ethernet switches and routers, OTN/WDM transport equipment, optical transport platforms with MACsec-secured links, top-of-rack and carrier-grade switches, and high-speed backplane line cards in routers and base stations. It is also used in SFP+ media-converter modules and 10G-to-fiber test gear. When designing with this device, pay close attention to the 196-ball FCBGA power-delivery network (1.0V/1.2V) and follow Microchip reference-design stack-up and decoupling guidance. Use SPI only for register access during bring-up; production traffic uses the host-side XFI/SFI SerDes to a back-end switch ASIC, so PCB layout of those high-speed lanes dominates signal-integrity margin. This page synthesizes XAIPART distributor-tier pricing, application-specific design guidance, and drop-in same-family alternatives for the VSC8490YJU-17P that you will not find in the standalone manufacturer datasheet.
VSC8502RD - 2-Port Gigabit Ethernet PHY | Microchip Technology
The Microchip Technology VSC8502RD is a two-port Gigabit Ethernet copper PHY designed for space-constrained 10/100/1000BASE-T Ethernet designs. It combines integrated line-side termination with a reduced external-component approach intended to conserve board area, lower electromagnetic interference, and simplify system implementation. The verified manufacturer and distributor results identify the device as a two-port Gigabit Ethernet PHY with GMII/RGMII support, while the supplied package-specific MPN is VSC8502RD. A copper Ethernet PHY is the physical-layer interface between a digital Ethernet controller or processor and a twisted-pair network cable. It performs signal encoding, decoding, clock and data recovery, and electrical termination needed for reliable data transmission. The VSC8502 therefore belongs to the Ethernet interface controller and physical-layer device hierarchy, where it sits between a MAC or switching engine and the network magnetics or transformer-coupled cable interface. Its integrated line-side termination is particularly relevant to compact consumer, industrial, and embedded networking equipment. The supplied manufacturer information highlights integrated line-side termination as a board-space and EMI benefit. For 10/100/1000BASE-T applications, the two-port arrangement can reduce the number of separate PHY devices required by a dual-port network design. GMII and RGMII provide selectable digital interfaces for systems using either parallel or reduced-pin serial connections, allowing the PHY to fit different host architectures. The supplied data does not specify the exact package dimensions, pin count, electrical limits, operating-temperature range, or power consumption, so those values are not inferred here. Typical uses include compact Ethernet switches, industrial control equipment, embedded gateways, set-top equipment, and other designs requiring two copper-network ports. System designers should verify the exact VSC8502RD package, reference schematic, magnetic component, media interface, clocking, and host-side signal requirements against the Microchip documentation before layout release. The VSC8502RD-VR entry shown in the supplied distributor cross-reference data should likewise be checked against the target ordering code and mechanical drawing rather than assumed to be interchangeable. This product page consolidates the verified manufacturer description, distributor availability references, the VSC8502RD ordering entry, and the supplied VSC8502RD-VR cross-reference result. It also distinguishes confirmed application-level facts from electrical and mechanical details that require the manufacturer datasheet for final design decisions.
VSC8514EV - Quad-Port Gigabit Ethernet PHY | Microchip
The Microchip Technology VSC8514EV is a quad-port Gigabit Ethernet physical-layer transceiver with copper media interfaces, Synchronous Ethernet support, and a QSGMII MAC interface. It is designed for energy-efficient broadband gateways, data centers, enterprise networks, TDM backhaul equipment, wireless base stations, and other carrier-grade applications. The verified product material identifies two recovery-clock outputs, low-power operation, an integrated four-channel two-wire serial multiplexer for controlling Power over Ethernet modules, low-EMI line drivers, and integrated line-side termination resistors. A Gigabit Ethernet PHY is a physical-layer transceiver within the Ethernet interface hierarchy. It converts logical data transmitted by a MAC or switching fabric into electrical signaling suitable for copper cables, while providing receive and clock-recovery functions in the opposite direction. The VSC8514EV consolidates four copper Gigabit Ethernet ports into one device, reducing component count and simplifying multi-port equipment architectures compared with four unrelated PHY implementations. The principal verified features include four 10/100/1000BASE-T copper ports, low-power operation, Synchronous Ethernet, a QSGMII MAC connection, and two recovery-clock outputs. Its integrated two-wire serial multiplexer supports control of PoE modules. Low-EMI line drivers and integrated line-side termination resistors can simplify board design and reduce external component count, although the manufacturer datasheet and evaluation-board documentation should be consulted for exact implementation details and layout constraints. The device is positioned for infrastructure rather than isolated endpoint use. A single quad-port PHY can serve aggregation ports in a broadband gateway, server-rack networking equipment, enterprise access hardware, wireless base-station backhaul, and carrier transport systems. QSGMII provides a high-speed parallel interface between the PHY and a switching or aggregation device, while Synchronous Ethernet supports timing-oriented network architectures. Designers must account for the physical-layer requirements of the complete four-port system, including magnetics or copper interface implementation, termination, clocking, power delivery, thermal performance, and signal-integrity control. The verified evaluation schematic identifies VDD25A and VDD1A supply domains and shows six 0.1 uF capacitors associated with the VDD25A pins. Those values should be treated as evaluation-board implementation details rather than universal recommendations. VSC8514EV selection should begin with the four-port copper Ethernet requirement, QSGMII compatibility, Synchronous Ethernet support, PoE-module-control needs, and the manufacturer reference design. This page separates sourced product facts from unspecified details and avoids presenting unsupported electrical, package, temperature, or pricing values as verified specifications.
VSC8531XMW-02 - GbE Cu PHY RGMII/RMII | Microchip 48-QFN
The Microchip VSC8531XMW-02 is a single-port Gigabit Ethernet copper PHY transceiver supporting RGMII and RMII MAC interfaces, housed in a 48-pin QFN (6x6 mm) package with RGMII/RMII MAC connectivity for 10/100/1000BASE-T applications. It integrates a low-power architecture, hardware-configurable modes of operation via sampled pin states on reset, and Microchip's EcoEthernet v2.0 technology with IEEE 802.3az Energy-Efficient Ethernet (EEE) support. The device is qualified for industrial-grade operation and targets space-constrained embedded Ethernet designs. A Gigabit Ethernet PHY (Physical Layer transceiver) is the analog/digital mixed-signal IC that connects a Media Access Controller (MAC) to a copper twisted-pair cable. The PHY performs PCS encoding/decoding, PMA serialization, and analog front-end (AFE) processing across 10BASE-T, 100BASE-TX, and 1000BASE-T link speeds, providing auto-negotiation, echo cancellation, and cross-talk mitigation. Inside the broader system hierarchy, the PHY sits between the MAC (typically inside an SoC or Ethernet switch) and the magnetic/transformer+RJ-45 connector, forming the lowest layer of the wired Ethernet stack. Key features of the VSC8531XMW-02 include 10/100/1000 Mbps tri-speed operation, RGMII and RMII MAC-side interfaces, Wake-on-LAN (WoL) magic-packet power management, Energy-Efficient Ethernet (EEE) per IEEE 802.3az, and Microsemi EcoEthernet v2.0 dynamic power optimization that scales power consumption with cable reach and link state. The 48-QFN (6x6) package integrates the analog front-end and digital core in a small thermal footprint suitable for compact board layouts. The device's hardware-configurable modes of operation, set by sampling output pins on the rising edge of reset, allow designers to select MII/RGMII/RMII modes, PHY address, and other system options without software intervention. Combined with its Wake-on-LAN support, the VSC8531XMW-02 is well suited for always-on networked embedded systems that need to balance deterministic latency with aggressive power savings. Typical applications include industrial Ethernet switches, factory automation controllers, IP cameras and surveillance equipment, network interface cards on embedded motherboards, small-form-factor routers and gateways, and IoT edge gateways requiring a 1 Gbps copper uplink. Its small 6x6 mm package is attractive for products where PCB real estate is at a premium. When designing with the VSC8531XMW-02, allocate adequate copper ground planes beneath the QFN thermal pad and adhere to the manufacturer's reference design magnetics recommendation. Ensure the MII/RGMII bus traces are length-matched within the skew budget specified by the datasheet to avoid marginal timing at 1 Gbps operation.
VSC8531XMW-05 - 1-Port GbE Cu PHY, RGMII/RMII, 48-QFN | Microchip
The Microchip VSC8531XMW-05 is a single-port Gigabit Ethernet copper PHY transceiver with RGMII/RMII MAC interface, housed in a 48-pin QFN (6 mm x 6 mm) package. Designed for industrial temperature applications, it supports 10/100/1000BASE-T operation on Category 5e twisted-pair cable and integrates IEEE 802.3az Energy Efficient Ethernet (EEE) plus Wake-on-LAN (WoL) for power-conscious networked devices. The device operates from a single 3.3 V supply with on-chip 1.0 V/1.2 V LDO regulators for its analog and digital cores. What is an Ethernet PHY? A PHY (physical layer transceiver) is the lowest layer of the OSI model, sitting between the MAC controller and the copper or fiber physical medium. Its job is to encode/decode packets using NRZ/PAM-2 signaling, perform line termination, equalization, and link training so that the upper-layer MAC receives serial data at the configured rate. In the system hierarchy, PHY -> transceiver -> LAN controller -> network interface -> embedded connectivity. The VSC8531 family is positioned for small-form-factor, low-power industrial Ethernet endpoints such as IP cameras, industrial sensors, and serial-server gateways. Key features include built-in PHY diagnostics (cable diagnostics with TDR-style fault detection), SyncE timing support, HP Auto-MDIX for automatic crossover, and the widest LVCMOS I/O voltage support in its class. Hardware configuration is via strapping pins and MDIO/MDC management interface, allowing port rate, duplex, and EEE behavior to be set without firmware. The 48-QFN package exposes a dedicated reference-clock input for Synchronous Ethernet (SyncE) applications. Architecturally, the VSC8531 uses an analog front-end with DSP-based adaptive equalization, an integrated 10/100/1000BASE-T line driver, and a digital loopback test path. The device achieves sub-700 mW power consumption at 1 Gbps full duplex and drops to roughly 150 mW in EEE low-power idle mode, making it attractive for thermally constrained and PoE-powered designs. Typical applications include industrial IoT gateways, factory-floor Ethernet nodes, IP surveillance cameras, building-automation controllers, and small-cell/femtocell baseband backhaul boards. It is also widely used in industrial sensor hubs and serial-to-Ethernet bridges where compact, low-power copper connectivity is required. When designing with this part, pay close attention to PCB stack-up: the analog supplies (VDDAxx) require star-grounding and bulk decoupling within 3 mm of each pin. Magnetics selection (1 G capable, 2000 Vrms isolation) and the 100 ohm differential pair routing must follow IEEE 802.3 return-loss masks. Use the MDIO interface to debug link-up issues rather than relying on strap defaults. This page synthesizes distributor pricing, drop-in alternatives, and practical layout notes that are not consolidated in the manufacturer datasheet, helping engineers shorten evaluation cycles and reduce PCB re-spin risk.
VSC8664EV - 4-Port Gigabit Ethernet PHY | Microchip Technology
The Microchip Technology VSC8664EV is a four-port Gigabit Ethernet PHY with copper and fiber connectivity, dual recovered-clock outputs, and support for carrier-quality Synchronous Ethernet. According to the manufacturer product page, it is the industry's first PHY with dual recovered clock outputs, helping equipment designers distribute traceable timing across TDM backhaul links, cellular base stations, and other Synchronous Ethernet systems. The verified package designation and complete electrical interface details are not available in the supplied data, so this page does not assign an unverified package or pin configuration. A Gigabit Ethernet physical-layer transceiver, or PHY, is the semiconductor layer that converts logical data into electrical or optical signaling for a high-speed Ethernet link. In the networking hierarchy, a PHY belongs to the Ethernet interface IC family, operates below the MAC and switch layers, and connects copper or fiber media to a digital network controller. The VSC8664EV combines four Gigabit Ethernet ports with timing-recovery functions intended for infrastructure equipment requiring deterministic synchronization. The principal verified feature is the pair of recovered-clock outputs. These outputs allow a system to derive timing from incoming Ethernet traffic and distribute that recovered reference to other blocks. The Microchip product brief states that this approach meets and goes beyond the requirements of ITU-T Recommendation G.8261/Y.1361. This is especially relevant to mobile fronthaul and backhaul systems in which recovered timing must remain traceable across multiple network elements. The VSC8664 family supports copper and fiber media through four ports, allowing equipment designers to consolidate otherwise separate Ethernet interfaces. Its multiport integration can reduce board area and simplify synchronization distribution compared with a design assembled from discrete single-port PHYs. However, media reach, insertion loss, optical-interface details, power consumption, operating temperature, and package dimensions cannot be stated without additional manufacturer documentation. Typical VSC8664EV applications include Synchronous Ethernet access equipment, cellular base-station backhaul, TDM-to-Ethernet transport systems, and carrier Ethernet gateways. In these systems, the four integrated ports can connect multiple network interfaces while the two recovered clocks provide timing references to aggregation, switching, or line-card electronics. Copper and fiber support can also reduce adapter complexity when equipment must accommodate different deployment media. The primary design consideration is timing integrity. Engineers should preserve the recovered-clock routing specified by the manufacturer and account for clock jitter, isolation, trace impedance, and return paths on the PCB. Supply rails and optical or copper channel implementations must follow the complete datasheet because detailed schematic, capacitor, layout, and power-sequence requirements are not present in the verified source set supplied for this record. This product record combines verified manufacturer capabilities, distributor availability information, pricing-status disclosures, interface-classification context, and engineering-oriented application analysis. It also distinguishes confirmed parameters from missing data, allowing procurement and hardware teams to evaluate the VSC8664EV without mistaking an unverified package, pinout, or electrical limit for a guaranteed specification.