Интегральные схемы

VSC7511XMY

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.

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VSC7512XMY

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.

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VSC7513XKS

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.

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VSC7514XKS

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.

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VSC7982XYE

VSC7982XYE - 11.3 Gb/s 3.3V Laser Driver | Microchip

Microchip Technology VSC7982XYE is a low-power 3.3V laser and modulator driver capable of data rates up to 11.3 Gb/s. The device is designed for VCSEL, directly modulated laser, and electro-absorption modulated laser (EML) signal chains, and it is offered in a compact low-cost QFP-N package optimized for small-footprint optical communications equipment. A laser and modulator driver is an interface IC that converts high-speed digital data into the current-driven electrical signal required by optical transmitters. Within the optical communication hierarchy, the VSC7982XYE combines a data path, modulation output, bias control, and on-chip operational amplifiers to reduce the number of external components needed around a laser or modulator. It therefore sits between the digital transceiver circuitry and the optical transmitter module. The principal operating characteristics include a maximum data rate of 11.3 Gb/s, a 3.3V power supply, and support for VCSEL, DML, and EML light sources. The family documentation also identifies low-power operation as a key benefit. Integrated on-chip operational amplifiers are intended to provide stable output modulation and output-bias control, helping reduce the discrete component count on the transmitter board. The VSC7982 family architecture is tailored to high-speed optical links where modulation current must be controlled accurately while the physical implementation remains compact. Low-cost QFP-N packaging supports production layouts where optical modules and line cards require many closely spaced high-speed driver channels. Because this device controls bias and modulation, PCB signal integrity, supply decoupling, return-path continuity, and controlled-impedance routing directly influence achievable data rate and eye quality. Typical uses include 10.3G and 10G-class optical transceiver modules, VCSEL transmitters, DML transmitters, EML transmitters, telecommunications equipment, and data-communications links. It can also be evaluated for test and measurement systems, instrumentation, and industrial optical-control modules that require a compact high-speed current driver. The device is particularly relevant where a fixed-function laser driver is preferable to a general-purpose amplifier and discrete current-source network. When laying out a circuit using the VSC7982XYE, place decoupling capacitors close to the supply and ground pins and preserve a continuous return path beneath the high-speed package. Use the manufacturer's reference design and pin-description tables for exact power, ground, bias, modulation, and control connections. Confirm the output-impedance and optical-module requirements of the selected laser before finalizing resistor values and termination arrangements. This page organizes the verified VSC7982XYE characteristics, purchase and availability guidance, family-level comparisons, application context, and practical design considerations. It also distinguishes documented capabilities from parameters that require confirmation in the manufacturer datasheet, helping engineers move from component selection to a defensible PCB implementation.

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VSC7984XYF

VSC7984XYF - 11.3 Gb/s EAM Driver | Microchip Technology

The Microchip Technology VSC7984XYF is an electroabsorption modulator driver for SONET/SDH and 10 GbE optical-transmission equipment, with the device described as an 11.3 Gb/s clocked driver and associated documentation also identifying a 12.5 Gb/s operating capability. It supports selectable data retiming to improve jitter performance while providing external controls for output bias voltage, modulation voltage, and duty cycle. The component is associated with a QFN package, although the exact package dimensions and pin count are not established by the accessible manufacturer information. An electroabsorption modulator driver, or EAM driver, is an interface IC that converts high-speed electrical data into the differential drive signals required by an electroabsorption-modulated optical transmitter. It belongs to the optical communication interface hierarchy: EAM driver, interface IC, integrated circuit, and semiconductor. Its primary role is to preserve signal integrity while delivering sufficient modulation voltage and bias conditions to an external optical modulator. Selectable data retiming is the central performance feature of the VSC7984XYF. Retiming can resynchronize the incoming data stream to an internal or associated clock, helping reduce jitter in systems where source-device timing and transmitter-chain alignment are imperfect. The output-bias, modulation-voltage, and duty-cycle controls allow the driver to be adjusted to the requirements of the optical modulator and its surrounding drive network. The device also incorporates internal operational amplifiers and an on-chip voltage reference. These functions reduce the amount of external circuitry needed to establish stable modulation and bias conditions. Internal amplification can simplify the signal path, while the reference supports repeatable control of the driver's operating state. The clocked architecture remains sensitive to trace routing, supply integrity, and the quality of the high-speed differential connections. Typical uses include 10 GbE optical modules, SONET/SDH transmit equipment, optical transport systems, and other 10.3125 Gb/s-class optical interfaces. The VSC7984XYF is most appropriate where an external electroabsorption modulator requires controlled bias, adjustable modulation drive, and selectable retiming. Its suitability in a specific design still depends on the complete modulator interface, target jitter margin, and required data-rate classification. When laying out a circuit around the VSC7984XYF, keep the high-speed differential output paths short and impedance-controlled, provide clean return paths, and place decoupling and termination components close to their associated pins. Confirm the exact pin assignments, exposed-pad requirements, supply sequencing, and output-impedance settings in the manufacturer datasheet before release to manufacturing. This page organizes the verified VSC7984XYF technical facts, sourcing information, application guidance, and design considerations into one engineering reference. It also distinguishes directly documented capabilities from package details and lifecycle information that must be confirmed before a new design is released.

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VSC8211XVW

VSC8211XVW - 1-Port GbE Cu/Fiber PHY, 117-LBGA | Microchip

The Microchip Technology VSC8211XVW is a single-port Gigabit Ethernet copper/fiber PHY transceiver that combines a 1.25 Gbps SerDes with a triple-speed (10/100/1000BASE-T) transceiver in a 117-LBGA (10x14 mm) package. The device operates from a 3 V to 3.6 V supply and supports copper PHY, 1000BASE-X fiber PHY, and 100BASE-FX media converter configurations with automatic media detection. A PHY (Physical Layer transceiver) is the interface block that converts between raw digital data and electrical or optical signaling on a copper or fiber link. In the system hierarchy, a PHY sits below the MAC (Media Access Control) block, which in turn sits below the network switch or host controller. Transceivers combine a PHY with parallel MAC-side interfaces so that a single silicon device can terminate a physical link while handing data to a MAC layer over a standard bus. Key features of the VSC8211XVW include full triple-speed auto-negotiation support, a 1000BASE-X compliant SerDes for fiber modules, and a wide set of MAC-side ports: GMII, RGMII, MII, TBI, and RTBI. The two serial interfaces (SGMII/1000BASE-X SerDes and the parallel MAC ports) let a system reduce signal overhead compared with a purely parallel GMII connection while still supporting legacy 10/100 MII-based MACs. Technically, the device combines an integrated 1.25 Gbps SerDes with a copper PHY capable of 10, 100, and 1000 Mb/s operation, using patented line driver technology that improves tolerance to noise and cable-plant imperfections. Auto-Media detection allows copper and fiber ports to be supported with one physical network port, reducing connector count and board area in media converter designs. Typical applications include Gigabit uplinks on Fast Ethernet switches, fiber-to-copper media converters, 100BASE-FX industrial and campus links, GBIC and SFP optical module designs, and industrial Ethernet equipment requiring a single PHY that bridges copper and fiber media. Design guidance: the 117-LBGA package demands careful via-in-pad and thermal-via layout, and the high-speed SerDes and copper pairs require controlled-impedance routing with clean references. Confirm regulator sequencing and 3.3 V rail decoupling close to the supply pins. This page consolidates manufacturer datasheet detail, interface compatibility analysis, drop-in alternatives in the same package family, and practical PCB guidance that is not gathered in one place in the original device documentation.

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VSC8221XHH

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.

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VSC8224XHG

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.

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VSC8244XHG

VSC8244XHG - Quad Gigabit Ethernet PHY | Microchip Technology

The Microchip Technology VSC8244XHG is a quad-port Gigabit Ethernet PHY transceiver with 10/100/1000BASE-T support, RGMII and RTBI MAC interfaces, four drivers and four receivers, and a 260-PBGA package. It operates from a 3 V to 3.6 V supply and is designed for low-cost Ethernet switch, router, and embedded networking equipment. A multi-port Ethernet PHY is an interface IC that converts data between a digital MAC or switching fabric and physical copper network links. The VSC8244 family combines four Gigabit Ethernet channels in one device, reducing the number of external PHY components required in a network system. Its RGMII interface supports high-speed digital connections to a network processor or switch ASIC, while RTBI provides an alternative MAC-facing interface for compatible designs. The principal feature of the VSC8244XHG is its quad-port architecture, which allows one device to terminate four Ethernet ports. The manufacturer describes the VSC8244 as the industry’s smallest, lowest-power quad-port Gigabit Ethernet transceiver for low-cost RGMII and RTBI switch and router applications. In 1000BASE-T mode, the manufacturer states that power consumption is 30% lower than the next-best competitor. The 3 V to 3.6 V operating range suits systems using a regulated 3.3 V power rail. The 260-PBGA package provides a high pin count for four integrated channels and their associated interfaces, while its lead-free construction and RoHS compliance support modern manufacturing requirements. The exact pin assignments, register map, clocking requirements, and electrical limits should be taken from the Microchip VSC8244 datasheet and reference design documentation. Typical applications include four-port Gigabit Ethernet switches, router interfaces, industrial Ethernet equipment, network appliances, and embedded systems that need multiple copper Ethernet ports. The PHY is positioned between the Ethernet magnetics and the system’s MAC or switching logic, so board design must account for high-speed digital signals, differential pairs, controlled impedance, grounding, and isolated network interfaces. For a new design, compare the complete Microchip VSC8244 datasheet, reference schematics, and support for the intended MAC interface before layout begins. The quad-channel package is not interchangeable with a single-channel PHY, and the 260-BGA land pattern requires careful fanout and via planning.

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VSC8256EV

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.

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VSC8256YMR

VSC8256YMR - Quad 10G Repeater/Retimer | Microchip

The Microchip Technology VSC8256YMR is a quad 1G/10G protocol-agnostic serial-to-serial repeater/retimer designed for board-level Ethernet signal-integrity applications. It provides four serial channels operating at 1G or 10G, integrates hardware-based host-side 10GBASE-KR auto-negotiation and training, and is associated with a low-power 256-FCBGA package. Its central function is to recover and retime high-speed serial links while supporting board-level connectivity across WAN, LAN, switching, and telecom equipment. A repeater/retimer is a signal-integrity IC positioned between two serial endpoints to reduce timing uncertainty, recover degraded signals, and extend reliable communication over circuit-board channels. Within the semiconductor hierarchy, the VSC8256YMR belongs to the serial transceiver and interface-controller class rather than the general-purpose Ethernet PHY category. This distinction matters because the device is protocol-agnostic and focuses on physical-layer signal recovery rather than converting between conventional Ethernet media and a digital host interface. The device supports four 1G/10G serial paths in one device, allowing a multiport system to use a consistent retiming architecture across parallel lanes. Its hardware-based host-side 10GBASE-KR auto-negotiation and training functions support link establishment over backplane-style electrical channels. Combining these functions in a compact FCBGA can reduce the number of separate repeater devices required in dense line-card and switching-platform designs while keeping signal timing behavior consistent among channels. The 256-FCBGA package provides a high pin count suitable for four independent high-speed channels, their associated supply and ground connections, control interfaces, and configuration or reference connections. Dense ball-pitch packaging also demands careful PCB layout, short high-speed escape paths, controlled reference planes, and independent supply-return distribution. The package is intended for surface-mount assembly and is suited to multilayer boards designed specifically for multi-gigabit signal routing rather than simple two-layer prototyping. Typical board-level uses include 10G Ethernet switching equipment, WAN and LAN interface line cards, telecom backplanes, and systems requiring protocol-independent signal recovery between endpoints. In these applications, the retimer can help compensate for connector, package, and PCB-channel losses while preserving deterministic link behavior. It is also relevant to equipment designers implementing four-lane 1G or 10G links where channel-to-channel timing consistency and training control are important design objectives. Design teams should evaluate the complete channel path rather than treating the retimer as a standalone specification. Loss and jitter budgets, transmit and receive equalization, connector transitions, reference-clock quality, power sequencing, and the PCB stack-up determine whether a 10G channel closes reliably. Decoupling and power-plane design are particularly important in a 256-ball package because each high-speed retimer channel requires clean references and controlled return paths for dependable signal recovery. This product page consolidates the manufacturer description, package information, sourcing details, application guidance, and pin-compatible family options into a concise engineering reference. It also highlights the distinction between protocol conversion, Ethernet media access, and true repeater/retimer functions to help designers select the correct device for high-speed board-level signal-integrity requirements.

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VSC8257EV

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.

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VSC8479YHQ-01

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).

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VSC8479YY

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.

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VSC8479YYY

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.

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VSC8484YJP

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.

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VSC8487YJU

VSC8487YJU - 10GbE Ethernet Transceiver | Microchip Technology

The Microchip Technology VSC8487YJU is a 10GbE Ethernet backplane transceiver that converts between a single XFI serial interface and dual XAUI lanes. It is packaged for high-speed printed-circuit-board designs and combines EDC, KR support, and IEEE 1588v2 timing functionality for timing-critical Ethernet systems. The lead-free construction is identified explicitly for the related VSC8487YJU-15 ordering code. An Ethernet transceiver is an interface IC that connects a digital communications system to a physical transmission medium. XFI and XAUI are high-speed serial interfaces commonly used to move 10GbE traffic across boards, backplanes, chassis, and equipment interconnects. A device that translates XFI to dual XAUI can bridge a narrow serial-side connection to two parallel high-speed lanes while centralizing electrical signaling, clocking, and timing functions in one component. Key features include support for 10GbE operation, EDC and KR, dual XAUI connectivity, and IEEE 1588v2 timing compliance. These capabilities make the VSC8487 family relevant to synchronized networking equipment, Ethernet switching systems, industrial automation platforms, and test equipment that requires deterministic traffic timing. The exact electrical ratings, operating temperature, and package dimensions should be confirmed against the manufacturer datasheet before release to production. The VSC8487 belongs to Microchip’s family of dual-channel XAUI-to-serial transceivers. The manufacturer identifies VSC8487-15 and VSC8488-15 as timing-oriented devices supporting industry-standard protocol encapsulations. This positioning places the VSC8487YJU within the broader hierarchy of Ethernet interface IC, network interface controller, data-converter semiconductor, and communication IC. Typical applications include 10GbE switching equipment, backplane routing systems, industrial control networks, synchronized test and measurement platforms, and telecommunications infrastructure. EDC helps the receiver recover data impaired by interconnect loss, while KR support addresses known backplane signal-integrity challenges. IEEE 1588v2 compliance is especially useful when synchronized time or deterministic event ordering must be maintained across the network. PCB implementation requires careful high-speed layout practices, including controlled impedance, short differential connections, suitable return paths, and compliance with the manufacturer’s reference design and decoupling guidance. Clocking, reference circuitry, reset behavior, and device configuration must follow the datasheet because incorrect sequencing or an unsuitable reference implementation can impair link operation even when the device itself is functioning correctly. This page organizes the VSC8487YJU’s confirmed networking capabilities, timing features, ordering variants, and practical design implications. It also separates documented facts from parameters that require direct confirmation, helping engineers assess fit, establish pin-compatible sourcing options, and plan robust 10GbE backplane implementations before schematic release.

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VSC8488XJU

VSC8488XJU Dual-Channel XAUI Transceiver | Microchip

The Microchip Technology VSC8488XJU is a dual-channel XAUI-to-serial transceiver interface IC designed for timing-critical telecommunications and data-networking equipment. Microchip identifies the VSC8487-15 and VSC8488-15 devices as fully IEEE 1588v2-compliant solutions supporting industry-standard protocol encapsulations. The VSC8488XJU is supplied in a surface-mount package and is identified by the XJU ordering suffix. An XAUI-to-serial transceiver is an interface semiconductor that converts XAUI parallel signaling into high-speed serial lanes and, in a dual-channel implementation, supports two independent signal paths. This type of device belongs to the communications interface hierarchy: serial transceiver → XAUI interface → telecommunications interface IC → semiconductor. It is used where timing, protocol synchronization, and reliable high-speed data transfer are central to the equipment architecture. The principal product-level benefits identified by Microchip are full dual-channel operation, IEEE 1588v2 compliance, support for timing-critical applications, and compatibility with industry-standard protocol encapsulations. These characteristics make the device suitable for transport, aggregation, switching, timing, and test equipment designed around XAUI links. Exact lane rates, electrical limits, clocking requirements, supply voltages, pin assignments, and package dimensions must be confirmed in the manufacturer datasheet before schematic or PCB implementation. VSC8488XJU is most relevant to systems requiring two XAUI channels and deterministic timing behavior. The IEEE 1588v2 capability supports precision time protocols, while protocol-encapsulation support can simplify interoperability with established telecommunications data paths. Its two-channel architecture can also reduce component count compared with separate single-channel transceivers when the host PCB has sufficient routing, power, thermal, and signal-integrity resources. The main design considerations are high-speed differential-routing discipline, compliant clock distribution, reference-plane continuity, controlled impedance, and careful separation between sensitive clock paths and noisy digital or power-conversion sections. Follow the manufacturer’s recommended decoupling, layout, and test procedures exactly. Confirm that the PCB footprint, pin assignment, solder-process limits, and absolute maximum ratings match the exact XJU package before releasing a production design. This page combines the manufacturer’s VSC8488 family positioning with package, procurement, comparison, and design guidance for engineers evaluating the VSC8488XJU in dual-channel XAUI systems.

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VSC8488YJU

VSC8488YJU - 10GbE Dual-Channel XAUI Transceiver | Microchip

The Microchip Technology VSC8488YJU is a dual-channel, 10 GbE XAUI-to-serial transceiver designed for timing-critical backplane, switching, and telecommunications equipment. Each channel supports 10 Gb/s serial signaling, and the device supports IEEE 1588v2 timing features for deterministic network synchronization. The component is supplied in a 196-FCBGA package measuring 15 mm by 15 mm. An XAUI transceiver is an interface IC that converts a parallel XAUI data stream into a high-speed serial lane and recovers the parallel stream on the receive side. It belongs to the serial communication transceiver hierarchy, which includes SerDes devices, physical-layer transceivers, network interface controllers, and broader communications semiconductors. Such devices move parallel data across printed circuit boards, backplanes, chassis, and rack-to-rack links. The VSC8488-15 family is identified by Microchip as a dual-channel XAUI-to-serial transceiver supporting 1588v2 compliance and industry-standard protocol encapsulations. Two integrated channels can reduce component count on systems that require parallel transmit and receive paths. The device also supports external clocking and reference arrangements for synchronization-sensitive infrastructure, although the complete clocking configuration must follow the manufacturer datasheet and reference design. At the physical layer, the VSC8488YJU combines differential high-speed serial I/O with digital control, configuration, clocking, and fault-management functions. Differential signaling improves common-mode noise rejection, while low-jitter clock distribution is important when the transceiver participates in synchronized Ethernet traffic. Board-level implementation requires controlled-impedance routing, short matched differential pairs, solid reference planes, and carefully positioned decoupling. Typical uses include 10GbE switching line cards, router and gateway interfaces, telecommunications aggregation equipment, optical-module host interfaces, network timing systems, and test equipment. In each case, the device serves as the high-speed electrical interface between parallel fabric or processing logic and narrow serial links. System architects should confirm lane count, protocol encapsulation, reference-clock requirements, and board-management features against the ordered device variant. The principal design trade-off is integration versus implementation complexity. A dual-channel transceiver consolidates two high-speed interfaces in one BGA, but it demands careful power-plane planning, thermal management, and BGA assembly control. Use the Microchip reference design and datasheet power-up sequence rather than relying on generic SerDes power rails. This page organizes the device data into a specification summary, application guidance, package information, and a practical selection comparison with closely related Microchip transceiver variants. It highlights board-level constraints that are not apparent from the MPN alone and distinguishes device variants that can look interchangeable in distributor catalogs.

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VSC8490EV

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.

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VSC8490YJU-17

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.

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VSC8490YJU-17P

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.

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VSC8496YMJ

VSC8496YMJ - 4x10GE OTN-FEC Transceiver | Microchip

The Microchip VSC8496YMJ is a four-port 10 Gigabit Ethernet transceiver IC with integrated OTN FEC, IEEE 1588v2 timing, and OAM support. It is associated with the Microsemi Corporation telecom interface product family and is supplied in tray packaging. The device provides serial, SFI, and XFI connectivity for demanding telecommunications infrastructure, including Carrier Ethernet switch, router, and DWDM systems. An Ethernet transceiver is a semiconductor that converts parallel or serial digital data into high-speed serial signals and performs the corresponding receive functions. Within a Carrier Ethernet equipment hierarchy, the VSC8496YMJ combines four 10GE channels, forward-error-correction capability, precision timing, and operations-administration-management functions. This integration supports equipment architects that need high-throughput interfaces without separating every PHY, FEC, timing, and OAM function into discrete components. The VSC8496YMJ's principal features include four 10 Gigabit Ethernet channels, integrated OTN FEC, IEEE 1588v2 timing implemented in the PHY, and OAM functionality. Its serial, SFI, and XFI interfaces provide options for connecting the transceiver within switching, routing, transport, and optical transport equipment. Integration of timing in the PHY is intended to provide accurate synchronization with low loss of precision in Carrier Ethernet and DWDM infrastructure. The device belongs to a specialized telecommunications silicon category rather than a conventional general-purpose Ethernet PHY. VeriTime distributed timing technology is integrated into the VSC8496 device, with the manufacturer describing it as a patent-pending implementation of IEEE 1588v2 timing. Such timing support is important in packet networks where clock synchronization, service delivery, and network observability must remain consistent across switching and transport domains. Typical applications include Carrier Ethernet switches and routers, DWDM transport systems, telecom aggregation equipment, timing-aware packet-network appliances, and high-capacity Ethernet line-card designs. The four-channel architecture is particularly relevant where multiple 10GE links terminate on one communications card. Product qualification should still be based on the complete carrier, optical module, clocking, thermal, and interoperability design rather than on transceiver capability alone. A primary design consideration is high-speed signal integrity. SFI and XFI routes require controlled impedance, low-loss PCB materials, suitable connector or optical-module interfaces, and carefully managed power and return paths. The integrated FEC and timing functions must also be validated with the surrounding line-card clock architecture, firmware, network-control software, and system-level timing budget. This product overview combines the manufacturer's interface description, exact ordering attributes, RoHS status, and published telecom functions with engineering-focused application guidance. It is intended to accelerate initial component screening while preserving the need to review the complete manufacturer datasheet, reference design, and application requirements before a production design is released.

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