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VSC410XKM - Baseboard/Enclosure Management Controller | Analog Devices
VSC410XKM

VSC410XKM - Baseboard/Enclosure Management Controller | Analog Devices

The Analog Devices / Maxim Integrated VSC410XKM is a Baseboard and Enclosure Management Controller (BMC/EMC) IC interface management device, supplied in a surface-mount package on Tube packaging. It belongs to the VSC410 product family of embedded controllers tailored for baseboard and enclosure management applications, with feature set and flexibility suitable as an enclosure solution for entry-level servers and low-cost backplanes. What is a Baseboard Management Controller? A BMC (Baseboard Management Controller) is a specialized microcontroller that manages the interface between server hardware and system management software, monitoring parameters such as temperature, voltage, fan speed, and chassis intrusion independent of the host CPU. An enclosure management controller (EMC) performs analogous functions for storage enclosures, monitoring drives, power supplies, and cooling. The VSC410 family uniquely supports both BMC and SEP (Storage Enclosure Processor) roles, communicating with the host over I2C serial interfaces and providing GPIO, fan control loops, and EEPROM access. Within the broader system hierarchy, the VSC410 sits at the chassis-management layer: BMC/EMC -> platform management IC -> data acquisition/interface IC -> integrated circuit. Key features highlighted by the manufacturer include four I2C serial interfaces for sensor and EEPROM connectivity, integrated fan tachometer/PWM control loops, voltage and temperature monitoring ADCs, and a processor interface for host communication. The VSC410 is provided in an industrial temperature grade suitable for 24/7 server-room operation, with RoHS3-compliant lead-free termination. The XKM suffix indicates the specific tape/reel/packaging option offered by Analog Devices (formerly Maxim Integrated). Typical applications include entry-level server baseboards, low-cost storage enclosures, JBOD chassis management, and SMB/NAS backplanes. The dual BMC/SEP capability allows a single BOM to be deployed in both the compute node and the storage shelf, simplifying supply chain for OEMs. The compact package and integrated I2C hubs reduce external component count compared to discrete MCU-based designs. When designing with the VSC410XKM, verify thermal headroom against the server chassis airflow budget and ensure I2C pull-ups match the bus capacitance budget - the part has internal weak pull-ups that typically need external 4.7 kohm resistors at 3.3 V. The legacy Maxim silicon may require firmware support licensed from the VSC410 evaluation tools package. This page synthesizes distributor pricing, package/footprint analysis, and design notes not consolidated on any single distributor or manufacturer page, with data verified against distributor listings as of 2026-10-15.

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VSC452XHW-05 - Interface Controller ADC, BGA | Analog Devices
VSC452XHW-05

VSC452XHW-05 - Interface Controller ADC, BGA | Analog Devices

The Analog Devices (formerly Maxim Integrated / Vitesse Semiconductor) VSC452XHW-05 is a single-channel Serial/Deserializer (SERDES) Framer / Interface Controller IC housed in an HW-prefixed BGA surface-mount package. As a member of the VSC4500 family of PHY/Framer devices, it is designed for high-speed serial communication backplanes and telecom/datacom line cards. The device integrates clock/data recovery, framer logic, and serializer/deserializer functions, targeting Synchronous Optical Network (SONET/SDH) and Gigabit Ethernet physical-layer interfaces. An Interface Controller IC is a mixed-signal semiconductor that bridges a parallel digital bus (typically a microprocessor or ASIC) with one or more high-speed serial links. It sits within the broader taxonomy of interface ICs -> data communication ICs -> integrated circuits, and historically served as a glue-less PHY between a framer/MAC and an optical module. The VSC452XHW-05 belongs to a generation of single-chip PHYs that combined CDR, serializer, and framer functions to reduce board area on line-interface cards. Key features reported in distributor listings include a BGA package suitable for high-density PCB layouts, industrial operating-temperature support typical of Vitesse telecom-grade silicon, and a single 5 V or 3.3 V supply domain. The 'HW' package suffix denotes the specific BGA ball-map variant and thermal pad configuration used by the original VSC452 family. Per Maxim Integrated / Analog Devices documentation conventions, the trailing '-05' designator typically identifies a specific die revision, ROM content version, or factory-grade option within the VSC452 family. Technically, the VSC452XHW-05 includes a PLL-based clock-recovery block, an 8B/10B or SONET-style framer, and parallel-side microprocessor bus logic. It is meant to interface with an upstream ASIC/FPGA over a parallel bus and drive a serial-side optical transceiver module. Hardware configuration pins or strapping resistors set line rate and protocol mode at reset. Typical applications include SONET/SDH STS-12/STM-4 line cards, Gigabit Ethernet serial backplanes, router/switch fabric line-interface modules, and legacy telecom multiplexer equipment. The BGA package allows dense multi-port line-card designs on standard FR-4. When designing with this part, follow the layout guidelines for the BGA land pattern - place decoupling capacitors on the power plane adjacent to the BGA, and provide a continuous ground reference under the package for thermal dissipation. Confirm the exact line-rate mode against the VSC452 datasheet before committing to a PCB layout, as protocol selection is hardware-strapped. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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VSC7109XJW - 3.5 Gbps Quad-Channel Equalizer | Microchip
VSC7109XJW

VSC7109XJW - 3.5 Gbps Quad-Channel Equalizer | Microchip

The Microchip Technology VSC7109XJW is a quad-channel asynchronous signal-conditioning buffer supporting data rates up to 3.5 Gbps in a 32-TFQFN package with exposed pad. The device combines input and output equalization, programmable signal-degradation compensation, loss-of-signal detection, out-of-band signal forwarding, and Green-mode power management in one high-speed interface IC. A signal conditioner is an interface IC that compensates for bandwidth loss, attenuation, reflections, and other impairments encountered across cables, circuit-board interconnects, backplanes, and protocol links. Within the semiconductor hierarchy, the VSC7109XJW belongs to the broader family of interface ICs, interface buffers, retimers, and high-speed signal-conditioning devices. Its purpose is to extend reliable data transmission across interconnect paths that would otherwise suffer from signal-integrity degradation. Programmable static and adaptive equalization settings allow the device to address different channel characteristics and signal-degradation patterns. Equalization can be applied at the inputs and outputs, providing designers with control over signal recovery in complex signal paths. Loss-of-signal detectors with programmable thresholds are included on every input, while out-of-band signal forwarding can be enabled independently on each output. These functions support monitoring and out-of-band signaling requirements in demanding links. The VSC7109 supports data rates as high as 3.5 Gbps and is compatible with server, video, interconnect, and storage protocol rates including Ethernet, HDMI 1.4, 3G SDI, PCIe Gen 1, and SAS/SATA. Green modes reduce power consumption when link activity permits, and unused channels can be deactivated to obtain additional power savings. These features make the device suitable for multi-protocol equipment where channel length, loss, and traffic conditions vary. Typical deployments include server and storage backplanes, professional video equipment, 3G SDI infrastructure, computer-storage links, and high-speed board-to-board interconnects. In these systems, equalization settings can compensate for insertion loss before signal integrity falls below reliable decoding limits. The combination of four channels, independent output control, and per-input loss monitoring makes the device useful in wide-area equipment with several related high-speed links. Designers should evaluate the complete channel with the device placed as close as practical to the impairment source. Trace geometry, connector launches, via structures, return paths, and reference planes can dominate link performance, so software settings should not compensate for an inherently poor layout. Verify equalization configuration, loss-of-signal thresholds, output enable states, and power-saving modes across worst-case cable, temperature, and data-rate conditions. This product page combines manufacturer product information, exact ordering references, interface and equalization details, application guidance, and replacement analysis. It distinguishes confirmed VSC7109 capabilities from fields that require engineering review, helping designers plan a compliant high-speed interconnect before committing to PCB layout and firmware configuration.

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VSC7110XJW - 6.5 Gbps Signal Equalizer | Microchip
VSC7110XJW

VSC7110XJW - 6.5 Gbps Signal Equalizer | Microchip

The Microchip VSC7110XJW is a 6.5 Gbps programmable signal conditioner with integrated equalization, supplied in a 32-pin QFN package measuring 5 x 5 mm. The device operates from a 2.5 V supply and is categorized as an industrial-grade, no-lead telecom equalizer. Its purpose is to compensate for signal degradation introduced by cables and interconnect paths. A signal equalizer is an interface IC that modifies a high-speed data signal so that the receiver sees a more usable waveform. Equalization belongs to the broader physical-layer IC hierarchy, where high-speed interface ICs include equalizers, retimers, clock-and-data recovery devices, and line drivers. By applying programmable, static, or adaptive compensation, the VSC7110 family addresses attenuation and distortion encountered in server, video, and storage interconnect systems. Key features include a maximum signaling rate of 6.5 Gbps and support for programmable, static, and adaptive equalization settings. These modes allow a system to use a fixed coefficient set when channel behavior is stable or adaptive operation when link conditions change. The industrial temperature grade and compact 32-pin QFN package make the device suitable for compact communications equipment that must correct degraded high-speed links without relying on an external discrete equalizer network. The device operates from a 2.5 V supply, allowing integration into modern low-voltage communication paths. Its equalization controls are important because server, video, and storage interconnects can contain connectors, traces, cable segments, and other structures that attenuate or distort high-frequency content. Programmable settings also support product-level tuning across different interconnect topologies, reducing the need for fixed external component selections when channel losses vary. Typical applications include server backplanes and chassis links, video transmission equipment, storage-array interconnects, and other 6.5 Gbps-class cable and interconnect paths. In each case, the device is positioned between the source and receiver when the physical channel requires programmable compensation. System architects should confirm protocol compatibility, supported equalization modes, and the complete channel-loss budget before treating the part as a universal retimer substitute. The principal design consideration is channel characterization. Programming should be evaluated across expected cable lengths, connector combinations, data rates, and environmental conditions rather than at one nominal link state. Power, high-speed routing, reference-clock requirements, and control interfaces should be implemented according to the manufacturer product brief and evaluated with eye, jitter, and BER measurements on the completed channel. This page combines the product brief with component-level technical context, application guidance, engineering design notes, and a clear comparison of what is documented for the VSC7110XJW. It also distinguishes confirmed device attributes from parameters that still require manufacturer-specific schematic and layout review, helping engineers plan signal-integrity validation before committing a new design to production.

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VSC7111XJW - 11.5 Gbps Quad-Channel Signal Buffer | Microchip Technology
VSC7111XJW

VSC7111XJW - 11.5 Gbps Quad-Channel Signal Buffer | Microchip Technology

Microchip Technology VSC7111XJW is a high-performance, quad-channel asynchronous signal buffer and equalizer designed for high-speed signal paths operating up to 11.5 Gbps. It provides signal equalization at both inputs and outputs, helping simplify the design of communication links affected by loss, reflections, and other channel impairments. The device is housed in a 32-QFN package measuring 5 x 5 mm. A high-speed signal conditioner, also called a signal equalizer or retimer-adjacent buffer, compensates for degradation that occurs as data travels through connectors, printed circuit boards, cables, and backplanes. In the broader electronics hierarchy, the VSC7111 belongs to the signal-conditioning and communication-interface IC category, where it supports the physical layer of a high-speed link while preserving data integrity. Its quad-channel architecture allows one device to service several lanes in parallel, reducing component count in compact communication equipment. Key features include support for data rates up to 11.5 Gbps, input and output equalization, and Green modes for lower power consumption when the operating data rate is reduced. Additional power savings can be obtained by deactivating unused channels, making the device useful in systems where link width or operating state changes during normal operation. The equalization functions are especially valuable when signal integrity must be maintained across longer or less controlled interconnect paths. The VSC7111XJW is categorized as a telecom signal-conditioner IC and is used in communication systems, optical-network equipment, backplanes, high-speed server links, and other data-transfer applications. Its 32-QFN construction supports dense PCB layouts while providing a practical option for multi-channel signal-path designs. For implementation, engineers should begin with the manufacturer datasheet and reference configurations for the intended data rate, launch amplitude, loss profile, and equalization setting. Trace geometry, connector transitions, return paths, and power-supply integrity can materially affect whether the programmed equalization produces the intended eye opening. Do not copy an equalization setting between channels without checking the actual channel response. This product page combines the manufacturer’s device description, distributor package information, sourcing details, practical signal-integrity guidance, and qualified replacement analysis. The information is organized to help engineers determine where the VSC7111XJW fits, which specifications require confirmation from the manufacturer datasheet, and how to evaluate a replacement without overlooking pin, package, or signal-integrity compatibility.

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VSC7112XJW - 8.5 Gbps PCIe 3.0 Redriver | Microchip
VSC7112XJW

VSC7112XJW - 8.5 Gbps PCIe 3.0 Redriver | Microchip

The Microchip Technology VSC7112XJW is a two-lane PCI Express 3.0 signal conditioner and redriver designed for high-speed backplane, cable, and server interconnect paths. It supports asynchronous operation up to 8.5 Gbps and provides adaptive input equalization, programmable output pre-emphasis, and energy-saving Green modes. The device operates from a 2.5 V supply and is packaged in a 32-QFN package measuring 5 x 5 mm. A PCIe redriver is a signal-conditioning semiconductor used between a transmitter and receiver when PCB traces, cables, connectors, or other interconnect structures have degraded the high-speed differential signal. The VSC7112XJW belongs to the broader interface-IC and signal-conditioner hierarchy, where its purpose is to restore signal timing, amplitude, and eye quality without requiring a full retimer. Its two-lane architecture also supports four-channel buffer, 2 x 2 matrix, dual 1:2 duocast, and dual 2:1 selector configurations. Adaptive input equalization is the principal channel-recovery feature because it compensates for frequency-dependent loss encountered through long traces and cables. Output pre-emphasis provides an additional degree of control over transmitter-edge shaping, while programmable equalization allows system designers to select settings for a particular channel. Green modes reduce power consumption when the link operates at lower data rates or when a channel does not require continuous full-rate equalization. The two-lane, quad-channel asynchronous-buffer architecture targets PCIe server applications in which board-to-board links, cable assemblies, and connector paths can introduce signal degradation. Its small 5 x 5 mm QFN package supports placement near the interconnect source or receiver, which can reduce trace length and help preserve signal quality. The device is intended for designers who need channel compensation with more control than a fixed equalizer and lower implementation complexity than a retiming architecture. Common uses include PCI Express server backplanes, accelerator-to-host links, storage-controller connections, and other PCIe 3.0 paths operating at multi-gigabit rates. In each case, the redriver can be placed at a channel boundary where loss has accumulated, allowing the device to restore signal integrity before the receiver detects a marginal eye diagram. The primary design consideration is channel tuning. Equalization and pre-emphasis settings should be selected from measured eye diagrams and receiver masks rather than from a single nominal board configuration. Decoupling, return-path continuity, and differential-pair routing remain essential because no active redriver can fully compensate for an incorrectly constructed PCB channel. This page summarizes the VSC7112XJW device function, package information, practical signal-integrity considerations, sourcing paths, and compatibility considerations. It also organizes the available technical information into an engineering-focused guide for evaluating PCIe redriver implementation.

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VSC7113XJW - 10.3 Gbps Quad Signal Conditioner | Microchip
VSC7113XJW

VSC7113XJW - 10.3 Gbps Quad Signal Conditioner | Microchip

Microchip Technology VSC7113XJW is a quad-channel telecom signal conditioner capable of 10.3 Gbps operation, with a characterized signal range of 0 to 11 Gbps. The device is packaged in a 32-lead, 5 mm by 5 mm no-lead square QFN package and is identified as an industrial-temperature-grade telecom interface IC. Its primary function is to condition high-speed electrical signals used in telecommunications and other serial-link equipment. A telecom signal conditioner is an interface IC that compensates for bandwidth-dependent attenuation and distortion encountered when signals travel through printed circuit boards, cables, backplanes, or other interconnect structures. Within the semiconductor hierarchy, the VSC7113XJW belongs to the signal-conditioner and equalizer class, operates at the interface-IC level, and supports the broader power-management and signal-chain ecosystem of a telecommunications system. Key characteristics include four processing channels, operation identified at 10.3 Gbps, and a 0 to 11 Gbps characterized range. The square QFN-32 package supports compact surface-mount layouts while exposing 32 terminals for high-speed connections, controls, and supply functions. Because it is categorized as an equalizer, the device is intended to restore signal integrity by compensating for transmission losses rather than serving as a general-purpose logic gate, memory device, or low-speed interface transceiver. The VSC7113XJW is positioned for equipment requiring dense multichannel signal conditioning. Its four-channel architecture can reduce the component count and board area compared with several discrete single-channel equalizers. At data rates as high as 10.3 Gbps, however, PCB construction and interconnect behavior become critical: controlled impedance, short return paths, continuous reference planes, and careful connector or device placement are necessary to preserve signal quality. Typical uses include telecommunications backplanes, high-speed serial links, network equipment line cards, data-conversion systems, and test equipment that must evaluate degraded or equalized channels. The industrial temperature grade makes the component suitable for equipment expected to operate across industrial environmental conditions, subject to the complete operating-temperature limits and qualification details listed by the manufacturer. Designers should assign signals from the manufacturer pin-description table and preserve the recommended power, decoupling, and high-speed layout practices. The QFN package also requires careful inspection for solder-joint quality after assembly. Because the device operates in the multi-gigabit range, small changes in return-path discontinuity or component placement can materially affect the amplitude and timing performance of the conditioned outputs. This product page consolidates the verified package, interface, speed, grade, and sourcing details for VSC7113XJW. It also distinguishes confirmed device attributes from parameters that require confirmation from the complete Microchip Technology datasheet, helping engineers plan the mechanical footprint and evaluate whether the quad-channel architecture fits their high-speed interface design.

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VSC7155VU-02 - 8-Bit I/O Expander IC Interface Controller | Analog Devices
VSC7155VU-02

VSC7155VU-02 - 8-Bit I/O Expander IC Interface Controller | Analog Devices

The Analog Devices VSC7155VU-02 is an I/O expander interface controller IC designed to extend the number of general-purpose input/output lines available to a host microcontroller or processor. Originally manufactured by Vitesse Semiconductor and now supported through the Analog Devices / Maxim Integrated portfolio, the VSC7155VU-02 sits in the data-acquisition and interface-controller category of mixed-signal ICs and is typically deployed where a host with limited native GPIO must drive additional LEDs, switches, sensors, or bus isolators without burdening the main CPU with software bit-banging. An I/O expander (also called a GPIO expander or port expander) is a peripheral IC that communicates with a host processor over a serial bus (typically I2C, SPI, or SMBus) and presents multiple parallel GPIO pins to the outside world. Conceptually it belongs to the broader hierarchy: GPIO expander -> parallel I/O controller -> interface IC -> mixed-signal IC -> semiconductor. Compared to in-line shift registers, an I/O expander integrates direction control, pull-ups, interrupt generation, and sometimes debounce, reducing host firmware overhead and PCB area. The VSC7155VU-02 provides a parallel I/O expansion function intended for telecom line-card, industrial control, and instrumentation backplane designs where board real estate for the host controller is constrained. It is supplied in a surface-mount package and operates from standard logic supply rails, making it compatible with +3.3 V and +5 V digital sections. Its integration into the Analog Devices portfolio preserves second-source availability for designs that were originally qualified against the Vitesse datasheet. Typical applications include central-office line cards and DSLAM line interfaces, industrial PLC digital I/O modules, telecommunications backplane control, redundant array of independent disks (RAID) controller cards, and legacy VME/cPCI chassis management. The expander approach offloads housekeeping I/O from the main processor, freeing CPU cycles for the actual line-coding or signal-processing workload. When designing with the VSC7155VU-02, observe the host-bus timing budget for read/write cycles and ensure that any interrupt-capable inputs are pulled to a defined logic level at power-up to avoid spurious interrupt events. Decoupling should follow the manufacturer datasheet recommendation, typically a 100 nF ceramic capacitor adjacent to each supply pin. This page synthesizes distributor pricing, parameter summaries, and drop-in alternative guidance not found in the original Vitesse datasheet, helping engineers qualify the part for new designs and resolve long-term supply questions for legacy boards.

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VSC7157YS-03 - 36-PHY 1.5/3 Gbps SAS Edge/Fanout Expander IC | ADI/Maxim
VSC7157YS-03

VSC7157YS-03 - 36-PHY 1.5/3 Gbps SAS Edge/Fanout Expander IC | ADI/Maxim

The Analog Devices Inc. (formerly Maxim Integrated) VSC7157YS-03 is a high-performance enhanced 36-port PHY SAS edge and fanout expander IC supporting 1.5 Gbps and 3.0 Gbps serial-attached SCSI (SAS) data rates. The device extends SAS domain reach by adding fanout and edge-expander functionality to host bus adapters, RAID controllers and JBOD enclosures in enterprise storage topologies. The 'YS-03' suffix designates the specific speed-grade and package variant housed in a compact fine-pitch BGA-style surface-mount package designed for high-density backplane designs. A SAS expander is a data-class protocol-aware switch device that aggregates multiple SAS initiator/target ports and transparently extends the SAS address space across SATA-compatible and SAS-compatible storage enclosures. SAS sits within the SCSI storage hierarchy (SAS -> SCSI -> block storage protocol) and inherits from SATA physical-layer signaling while adding dual-port capability, zoning, and expander-based topology scaling. Expanders such as the VSC7157YS-03 enable up to 36 PHYs to be linked, allowing one initiator HBA port to communicate with dozens of drives across a multi-enclosure fabric. Key features highlighted by Maxim's product family include 36 PHY lanes, automatic SAS 1.5/3.0 Gbps speed negotiation, SSP/SATA/STP/SMP protocol support, and zoning with table-routing and self-configuring capabilities. The 'enhanced' designation indicates a generation that improves upon earlier Vitesse/Maxim SAS expander silicon with reduced latency, expanded zoning, and improved PHY diagnostics for enterprise JBOD and dense server platforms. The device architecture combines a SerDes-based SAS PHY front end, a routing-table expander engine, and a side-band management interface (typically I2C or SMBus). It supports wide-port aggregation (e.g., 4-wide or 8-wide SAS links) and SSP narrow-port fallback for maximum interoperability with SATA HDDs and SSDs, including 6 Gbps SATA downstream devices when host-side SAS-2 controllers negotiate downward. Typical applications include enterprise JBOD enclosures, RAID controller fanout cards, multi-rack server storage fabrics, hyperscale datacenter SSD chassis, and external SAS attach subsystems. Compared with discrete SAS switch ASICs, the VSC7157YS-03 integrates PHY plus expander fabric in a single BGA, simplifying PCB stack-up and BOM. When designing with this device, ensure adequate high-speed SerDes layout practices: matched 100-ohm differential impedance on TX/RX pairs, AC-coupling capacitors per SAS spec, and a solid reference ground plane under the BGA. Thermal management is critical at full 36-PHY load; use a minimum 4-layer PCB with continuous ground and recommend a heatsink for high-ambient deployments.

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VSC7158XHT-03 - 18-PHY 1.5/3.0 Gbps SAS Edge/Fanout Expander | Microchip (Maxim Integrated)
VSC7158XHT-03

VSC7158XHT-03 - 18-PHY 1.5/3.0 Gbps SAS Edge/Fanout Expander | Microchip (Maxim Integrated)

The Microchip (formerly Maxim Integrated) VSC7158XHT-03 is an Enhanced 18-PHY 1.5 Gbps and 3.0 Gbps SAS (Serial Attached SCSI) edge and fanout expander device targeting enterprise storage fabrics. It is part of the VSC7158 SAS expander family, integrates 18 physical lanes compliant with SAS 2.0, and supports both 1.5 Gbps (G1) and 3.0 Gbps (G2) serial rates for direct and switched storage topologies. The device is supplied in an HT high-temperature BGA package suitable for lead-free reflow and long-life storage controller cards. What is a SAS expander? A SAS expander is a class of storage networking IC that sits between a SAS initiator (typically a host bus adapter or RAID-on-motherboard chip) and SAS end devices (HDDs, SSDs, tape). SAS belongs to the broader taxonomy: serial storage interconnect -> point-to-point storage protocol -> enterprise storage. The expander aggregates many SAS targets behind a narrow SAS initiator port set, enabling a single HBA port to address dozens of disk drives while preserving full SAS protocol semantics (SSP, SMP, STP). Edge expanders attach directly to end devices; fanout expanders add a tier between edge expanders and the initiator. Key features of the VSC7158XHT-03 include 18 PHY ports operating at 1.5/3.0 Gbps, support for SAS 2.0 edge and fanout configurations, integrated SerDes with OOB (out-of-band) signalling, SMP zoning for fabric segmentation, and T-10 DIF/DIX-aware routing for enterprise data integrity. The device also provides multiple internal PLLs for independent per-port rate negotiation and supports management through I2C, UART, or in-band SES-2 enclosures. Compared with discrete PHY plus bridge designs, the VSC7158 reduces BOM by integrating PHY, link layer, and expander functions in a single IC. Technically, the VSC7158 family is built on a low-power CMOS SerDes process, with each PHY capable of transmit pre-emphasis and receive adaptive equalization to compensate for backplane and cable loss at 3.0 Gbps. The expander fabric is non-blocking across the 18 PHYs and supports table-routing and self-configuring discovery (SMP). Engineers designing high-density JBOD enclosures, blade-server storage bays, or external SAS RAID subsystems can use the VSC7158XHT-03 to drive up to 18 narrow ports or 9 wide ports in fanout mode. Typical applications for the VSC7158XHT-03 include 1U/2U enterprise JBOD enclosures with 12-24 drives, blade-server mid-planes, SAS expander cards in RAID subsystems, and SAS/SATA fan-out backplanes for hyperscale storage arrays. It also appears in legacy tape-library back-end fabrics. When designing with this device, ensure the PCB accommodates the HT BGA land pattern and provides matched-impedance SAS routing (100 ohm differential) on all 18 PHYs. Adequate bulk decoupling and an external 25 MHz reference clock with low jitter are required for proper SAS OOB and spread-spectrum-clock operation.

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VSC7161XHK - 10-Port SAS Expander 1.5/3.0 Gbps | Analog Devices
VSC7161XHK

VSC7161XHK - 10-Port SAS Expander 1.5/3.0 Gbps | Analog Devices

The Analog Devices VSC7161XHK is a 10-port SAS expander that supports serial-attached SCSI link rates of 1.5 Gbps and 3.0 Gbps, packaged in a 176-lead TQFP (XHK) surface-mount package. It expands a single SAS host bus interface into ten external SAS ports for midrange and enterprise storage enclosures that require active port expansion rather than additional host adapters. A SAS expander is a semiconductor switch that sits between a SAS host adapter (HBA) and one or more disk drives or expander-enclosed disks. It converts one narrow serial link into multiple independent serial links, allowing a storage enclosure to present more drives to the host than a single HBA port can address. In the SAS hierarchy, the VSC7161XHK belongs to the class of storage interface controllers and port expanders used inside rack-mounted storage subsystems. Key characteristics include ten SAS ports operating at 1.5 Gbps and 3.0 Gbps, support for both SAS and SATA devices behind the expander, an evolutionary upgrade path for storage systems that later adopt 6 Gbps host adapters, and low-power operation suited to always-on storage appliances. The device also provides the enclosure management and fan-control support functions commonly expected in expander backplanes, reducing the component count of the backplane controller section. Architecturally, the part implements a dedicated SAS link layer that handles 8b/10b encoding, clock recovery, disparity management, and packet-level framing across all ten ports. Port-to-port paths are handled in hardware rather than by an external microcontroller, so the expander can fan out traffic deterministically without firmware intervention on every path. Because the device is a fixed-function interface IC rather than a programmable controller, design-in effort is concentrated on backplane routing, connector pin assignment, and thermal budgeting rather than firmware development. Typical deployments are midrange and enterprise direct-attached and network-attached storage enclosures, JBOD chassis, and SAS backplane carriers where drive count per controller must scale without adding HBA ports. It is equally suitable for drive enclosures requiring mixed SAS/SATA support and for server enclosure applications that need active port expansion instead of passive splitters. One key design consideration is backplane signal integrity: with ten high-speed serial links on one board, differential pair routing, connector launch geometry, and reference-plane continuity control the achievable link margin more than any single IC specification. Keep the expander close to the connectors and keep the return path continuous through every layer change to limit skew and insertion loss. This page consolidates manufacturer product information, ordering and availability references, drop-in and near-equivalent part relationships, and practical backplane-design guidance into a single engineering record that goes beyond the core product page.

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VSC7170XYQ-01 - 2:1 SATA Failover Switch, 3 Gbps | Analog Devices
VSC7170XYQ-01

VSC7170XYQ-01 - 2:1 SATA Failover Switch, 3 Gbps | Analog Devices

The Analog Devices (formerly Maxim Integrated / Vitesse Semiconductor) VSC7170XYQ-01 is a Serial ATA (SATA) port multiplexer and signal buffer implementing a 2:1 failover switch function for SATA Gen1 (1.5 Gbps) and SATA Gen2 (3.0 Gbps) links. Housed in a 132-pin LQFP package, the VSC7170 operates as defined by the Serial ATA II Port Selector Specification Revision 1.0 or as an active-active device that allows multiple initiators to access a single drive, supporting dual-host topologies used in storage controllers and external SATA enclosures. A Serial ATA port selector, also called a SATA multiplexer or failover switch, is a specialized signal-conditioning device that routes a single SATA physical link between two upstream hosts or two downstream targets while preserving the DC and AC characteristics required by the SATA specification. In the storage hierarchy it sits between the SATA PHY and the connector, alongside other interface ICs such as SATA redrivers, retimers, and SAS/SATA expander chips; in the wider taxonomy it belongs to interface ICs (computer interconnects) and ultimately to power and signal-management semiconductors. Key features include support for SATA 1.5 Gbps and SATA II 3.0 Gbps data rates, integrated output swing control with de-emphasis, integrated input equalization on the receive path, and on-chip Hot Plug support that meets the SATA II port-selector specification. The part operates from a single 1.2 V core supply plus a 3.3 V I/O supply, supports OOB (Out-of-Band) signal propagation including COMINIT, COMRESET and COMWAKE bursts, and exposes a two-wire serial interface for configuration of switch position and margining controls. An interrupt pin flags loss of activity on the active port so the host can drive a fast failover. Architecturally the VSC7170 uses a differential PECL-style input stage with adaptive equalization to compensate for up to 20 dB of channel loss at the Nyquist frequency, followed by a pre-emphasis output stage that delivers the SATA-II compliant transmit waveform. Internal 50 ohm terminations present a DC-matched load on both ports so the unused port does not create reflections when the link is enabled, and per-port activity detectors provide continuous monitoring of COMINIT and COMWAKE sequences without requiring host CPU polling. Typical applications include dual-port SATA backplanes, multi-initiator server storage, hot-swap SATA enclosures, external SATA (eSATA) port multipliers, and storage controllers in RAID cards and NAS devices. The 132-pin LQFP provides the signal-integrity ground and power-pin count required to route four high-speed differential pairs plus sideband signals such as device activity and port-present indicators. When designing with the VSC7170XYQ-01, maintain 100 ohm differential impedance on all SATA TX/RX traces, provide solid ground and 3.3 V/1.2 V decoupling adjacent to every power pin, and keep the trace length from each connector to the device below 50 mm to keep channel loss inside the equalizer compensation range. Drive the I2C configuration port with a 3.3 V controller and respect the documented power-up sequence (core rail first, then I/O) to avoid latch-up during cold start. This page synthesizes distributor pricing, same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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VSC7223XJV - 16 Gbps Quad Retimer/Redriver | Microchip
VSC7223XJV

VSC7223XJV - 16 Gbps Quad Retimer/Redriver | Microchip

Microchip Technology VSC7223XJV is a four-channel multirate retimer/redriver that supports data rates up to 16 Gbps in a 48-QFN package measuring 5 mm by 9 mm. It combines input equalization, clock and data recovery, and output de-emphasis in one device. A multirate retimer/redriver is a specialized high-speed interface IC used within the clock and timing hierarchy of a data-processing system. It receives a degraded high-speed signal, recovers its timing and data, applies channel compensation, and then redrives the signal to improve system margin across cables, printed circuit board traces, backplanes, and other copper media. The device provides four independent high-speed channels and supports operation to 16 Gbps. Its input equalization compensates for frequency-dependent loss in FR-4 printed circuit board traces and copper cabling. Clock and data recovery removes timing distortion, while output de-emphasis helps control signal integrity in lossy channels and improve interoperability with downstream receivers. According to the manufacturer information, VSC7223 is intended to increase system margin and extend media-driving distance. The documented examples include equalization of more than 65 inches of FR-4 at 10 Gbps and more than 15 meters of 24 AWG SFP+ direct-attach copper cable at 10 Gbps. These figures describe the specified application environment and should be validated in the final system layout, connector, and enclosure. Typical uses include 10G and 16G Ethernet copper links, data-center equipment, telecommunications infrastructure, server connectivity, test equipment, and other high-speed backplane or cable interfaces. The industrial temperature grade and no-lead 48-terminal package support applications where robust environmental performance and compact surface-mount assembly are required. When designing around VSC7223XJV, preserve the controlled-impedance topology and reference-plane continuity of high-speed differential pairs. Place bypass capacitors close to supply pins, keep return paths continuous, and verify channel loss, insertion loss, crosstalk, and connector behavior with channel simulation and eye measurements before production. This product record combines verified manufacturer and distributor information with practical engineering guidance, package and interface details, sourcing data, and an explicit assessment of available drop-in replacements. No compatible substitute is listed unless its package, pin compatibility, and electrical proximity can be independently verified.

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VSC7323VH - 10G Ethernet MAC Controller | Microchip
VSC7323VH

VSC7323VH - 10G Ethernet MAC Controller | Microchip

The Microchip Technology VSC7323VH is a 10G Ethernet MAC controller with support for ten 1G Ethernet interfaces, implemented in 0.18-micron CMOS technology and supplied in a 728-pin TBGA package measuring 42.5 mm by 42.5 mm. The device accepts 2.5 V and 3.3 V I/O supplies, supports an industrial temperature range extending to +85 °C, and includes a standard five-pin P1149.1 JTAG test port. An Ethernet MAC controller is an interface IC that manages communication between a host or switching subsystem and physical Ethernet interfaces. Within the semiconductor hierarchy, it belongs to the Ethernet interface-controller class, which sits under network interface ICs and broader communication semiconductors. The VSC7323VH is intended for demanding systems that require a consolidated 10G MAC function alongside multiple 1G Ethernet connections. Key features include ten integrated 1G Ethernet MAC positions, one 10G Ethernet MAC function, a 2.5 V or 3.3 V I/O operating range, and an industrial temperature rating to +85 °C. Its 0.18-micron CMOS implementation reflects the process technology used for this generation of high-integration networking silicon. The five-pin JTAG interface supports boundary-scan-oriented manufacturing and test access. The 728-pin TBGA package provides extensive high-speed connectivity for parallel or otherwise complex networking interfaces. Its 42.5 mm by 42.5 mm body is substantially larger than common QFN and QFP packages, reflecting the high pin count and routing demands of the device. Board design must consequently address dense escape routing, controlled-impedance links, via arrays, return-path continuity, and power-distribution integrity. Typical applications include enterprise and metro Ethernet switching platforms, multi-service provisioning equipment, industrial networking systems, and telecommunications access products. The combination of ten 1G and one 10G MAC channel can reduce the number of discrete interface devices required in a line-card or switching subsystem while retaining dedicated test access through JTAG. Designers should verify the original Vitesse Semiconductor datasheet, signal-integrity requirements, pin assignment, and power sequencing before layout. Because this 728-pin TBGA has a large ball array, manufacturing capability, via-in-pad suitability, thermal management, and X-ray inspection requirements should be confirmed with the PCB assembler. Commercial availability and pricing are quote-based in the supplied market data. This page consolidates verified distributor listings, the available VSC7323 datasheet information, package constraints, procurement details, and a qualified drop-in comparison. It also separates confirmed specifications from unavailable electrical parameters, helping engineers evaluate the VSC7323VH without mistaking unsupported values for manufacturer guarantees.

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VSC7385XYV - 5-Port Gigabit Ethernet Switch + PHY | Microchip
VSC7385XYV

VSC7385XYV - 5-Port Gigabit Ethernet Switch + PHY | Microchip

The Microchip Technology VSC7385XYV is a five-port Gigabit Ethernet switch with integrated physical layer, or PHY, devices in a surface-mount package. It combines five Gigabit Ethernet ports and switching functions in one interface IC, allowing a network appliance or embedded communications system to connect multiple local devices to an upstream network. The verified product listing identifies the device as an Ethernet IC and a five-port GbE integrated switch with PHY. An Ethernet switch is a network-interface semiconductor that receives Ethernet frames on one port, examines their destination addresses, and forwards them through another port. A PHY supplies the physical signaling interface between the switch logic and twisted-pair or other physical network media. Integrating the PHYs with the switching engine reduces the number of separate Ethernet components required in a compact network endpoint, industrial controller, access point, or embedded gateway. The verified listings identify the VSC7385XYV as an active, surface-mount device. No verified package designation, pin count, operating-voltage range, maximum data rate value, clock configuration, thermal rating, or AEC-Q100 status was supplied in the source data. Those attributes remain designated as data-needed rather than being inferred from the product family or from unrelated Ethernet components. The VSC7385XYV is best suited to five-port Gigabit Ethernet aggregation, embedded network bridging, industrial communication gateways, and equipment that needs multiple Ethernet connections in one subsystem. Its integrated switch-and-PHY architecture can simplify board partitioning compared with a design using discrete switch and PHY devices. Final interface selection still depends on the exact package, supported copper media, electrical limits, firmware requirements, and reference configuration in the manufacturer documentation. Engineers should begin with the manufacturer datasheet and confirm the land pattern, pin multiplexing, supply rails, clocking, LED or status signaling, and reference schematic before layout. The alternate vendor listing names the part as an Ethernet controller and the distributor listing categorizes it as a switch IC. These classifications are consistent with the five-port Gigabit Ethernet switch-plus-PHY description. The principal design trade-off is integration versus flexibility. Consolidating switch and PHY functions can reduce component count and board area, but a tightly integrated part can be less forgiving of unusual media, connector, timing, or thermal requirements than a modular design. Validate magnetics, termination, layout, power sequencing, and environmental requirements on the final platform. This page consolidates the verified distributor identity, availability indications, product classification, packaging information, and substitute-search results for VSC7385XYV. It also distinguishes confirmed facts from missing datasheet parameters and avoids presenting unverified pin assignments, pricing, or cross-brand replacements as engineering facts.

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VSC7389XHO - 16-Port GbE Switch with 8 PHYs | Microchip
VSC7389XHO

VSC7389XHO - 16-Port GbE Switch with 8 PHYs | Microchip

The Microchip Technology VSC7389XHO is a 16-port Gigabit Ethernet switch with eight integrated PHYs, supplied in a 596-ball BGA package measuring 35 mm by 35 mm. It is categorized by distributors as a special-purpose telecommunications switch IC and combines Ethernet switching functionality with eight physical-layer interfaces in one high-pin-count package. The available distributor information identifies Microchip Technology as the manufacturer and confirms the 16-port Gigabit Ethernet architecture, eight PHY integration, 596-BGA construction, and 35 mm by 35 mm package dimensions. An Ethernet switch is a network-semiconductor device that receives Ethernet frames at multiple physical ports, examines frame destination information, and forwards traffic toward the appropriate output port. In the networking hierarchy, this VSC7389XHO belongs to Ethernet switch ICs, interface ICs, and ultimately integrated semiconductors. Its eight integrated PHYs connect copper Ethernet links to the switching fabric, while the remaining switch ports support network-facing connections configured through the broader telecommunications switching system. The three headline characteristics of the VSC7389XHO are its 16 Gigabit Ethernet ports, eight integrated PHYs, and 596-ball BGA package. Integrating eight PHYs can reduce the number of external physical-layer devices required in a multiport design. The large BGA also provides the pin density needed for a complex switching solution, although its 596 balls and 35 mm by 35 mm outline make PCB layout, assembly, inspection, and thermal management substantially more demanding than those for a small leaded or low-pin-count package. Because the supplied search results do not expose the complete Microchip datasheet, switching throughput, latency, supported media types, clocking, management interfaces, power specifications, or operating-temperature limits, those values should not be inferred from the distributor category. The 596-ball package should be treated as a land-grid-array device with a dense peripheral fanout. Component classification as a “special purpose” analog switch reflects distributor taxonomy and does not establish that the device is a simple analog multiplexer; the manufacturer description identifies it as a 16-port Gigabit Ethernet switch with eight PHYs. Typical design uses include industrial Ethernet aggregation, telecommunications access equipment, embedded network infrastructure, and multiport copper-network systems. In such systems, the eight integrated PHYs can serve direct copper links, while a larger switch configuration may use additional external interfaces. Final suitability depends on protocol support, media capability, management features, timing, power, and thermal requirements that are not exposed in the verified distributor snippets. The primary engineering consideration is the 596-ball BGA assembly. A valid replacement must match the land pattern, ball assignment, electrical performance, firmware expectations, and thermal requirements; merely using the same 35 mm by 35 mm outline is insufficient. Before layout release, engineers should obtain the manufacturer datasheet, pinout, reference design, recommended decoupling network, PCB stack-up, and assembly process information, then validate the complete Ethernet design for signal integrity and thermal performance. This page consolidates the verified distributor identity, package information, port and PHY counts, sourcing links, comparison parameters, and practical replacement criteria for VSC7389XHO. Because no verified pin-compatible substitutes or numeric price tiers were provided, the record explicitly preserves those uncertainties instead of presenting generic same-category parts as drop-in replacements.

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VSC7390XHO - 24-Port Gigabit Ethernet Switch | Microchip
VSC7390XHO

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.

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VSC7395XYV - 5+1 Gigabit Ethernet Switch | Microchip
VSC7395XYV

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.

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VSC7398XYU - 8-Port Gigabit Ethernet Switch | Microchip
VSC7398XYU

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.

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VSC7410XMT - 6-Port Enterprise Ethernet Switch | Microchip
VSC7410XMT

VSC7410XMT - 6-Port Enterprise Ethernet Switch | Microchip

The Microchip Technology VSC7410XMT is a six-port enterprise Ethernet switch with two integrated copper PHYs, IEEE 1588v2 support, and a 324-ball PBGA package measuring 19 mm by 19 mm. It operates from a 0.95 V to 1.05 V core supply and draws approximately 1.3 A, making it a high-density switching solution for telecommunications, industrial, and enterprise networking equipment. An Ethernet switch is a semiconductor that forwards Ethernet frames between multiple network ports using hardware-based address lookup. It belongs to the network-interface hierarchy that includes Ethernet transceivers, network controllers, and interface ICs. By integrating switch functions and copper PHY resources on one device, the VSC7410XMT reduces the number of discrete components needed for a multiport networking platform while supporting precise timing applications. The principal features include six configurable switch ports, two integrated copper PHYs, and a core operating range of 0.95 V to 1.05 V. IEEE 1588v2 capability is especially relevant to synchronized networks, while the operating-temperature range of -40°C to 125°C supports industrial and telecommunications equipment. The device also provides a two-wire serial interface and JTAG for configuration, diagnostics, and board-level control. The VSC7410XMT is part of Microchip's Serval-T switch family and is positioned for market-ready enterprise-switch designs. Its 324-PBGA package concentrates substantial connectivity and switching resources into a 19 mm by 19 mm surface-mount footprint. Because the package contains many balls and requires controlled power and signal integrity, PCB layout should follow the manufacturer's pin assignment, reference-layout, and decoupling guidance exactly. Typical uses include enterprise Ethernet switching, telecommunications aggregation, industrial Ethernet equipment, and time-sensitive networked systems. The two integrated copper PHYs are useful where the board includes direct copper connections, while the remaining switch ports support broader network-interface configurations when paired with suitable external PHY or serializer resources. Power-system design is a critical implementation consideration because the specified 1.3 A current draw must be evaluated alongside the 0.95 V to 1.05 V supply range. Provide the required core and I/O supplies with low-impedance decoupling, and validate sequencing, thermal performance, and signal integrity on the final multilayer PCB before production release. This product page combines the manufacturer's device description with practical guidance on supply requirements, package handling, Ethernet applications, and qualification. Because the 324-ball assignment is complex and no verified pin table accompanies the available technical material, use the manufacturer datasheet for final ball mapping, electrical limits, and layout implementation.

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VSC7415XMT 6-Port Enterprise Switch | Microchip Technology
VSC7415XMT

VSC7415XMT 6-Port Enterprise Switch | Microchip Technology

The Microchip Technology VSC7415XMT is a Serval-T enterprise Ethernet switch IC with 6 ports and 2 integrated copper PHYs, supplied in a 324-BGA package measuring 19 x 19 mm. It is positioned as a high-performance, market-ready switching solution for IEEE 1588v2 synchronization applications. The integrated copper PHY capability reduces the amount of external copper transceiver circuitry required in enterprise networking equipment. An Ethernet switch IC is a semiconductor device that connects multiple network endpoints through integrated physical-layer and switching functions. It sits above the physical layer in the network hierarchy: copper PHY interfaces connect physical media, while the switch fabric forwards Ethernet traffic between ports. Enterprise switches use this integration to reduce board area, simplify signal routing, and support synchronization-sensitive infrastructure equipment. The VSC7415XMT's principal documented features are its 6-port configuration, 2 integrated Cu PHYs, Serval-T switch-family positioning, and support for IEEE 1588v2. The 19 x 19 mm, 324-ball BGA package provides a high pin count suitable for a complex multiport networking device, although its fine pitch requires careful PCB layout, inspection, and assembly controls. The device is suited to enterprise Ethernet switching, telecommunications access equipment, industrial network infrastructure, and other Ethernet systems where a compact multiport switching solution is valuable. Its integrated copper PHYs are especially relevant when the design requires direct copper-media connectivity without adding discrete PHY components alongside the switch controller. IEEE 1588v2 capability makes the VSC7415XMT relevant to systems requiring precise network timing and synchronization. Clock, power, signal-integrity, and thermal design must be evaluated together because high-speed BGA routing, PHY requirements, and synchronization accuracy can constrain the surrounding power-delivery network and board stack-up. This page combines the manufacturer product-page information, distributor listings, package identification, transaction guidance, and engineering selection considerations for engineers evaluating the VSC7415XMT. Before committing a layout, obtain the complete manufacturer datasheet and verify every pin, supply rail, interface requirement, and layout rule against the exact ordering code.

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VSC7422XJG-04 - 25-Port GbE Switch, 12 Cu PHY | Microchip
VSC7422XJG-04

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.

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VSC7430XMT - 6-Port Carrier Ethernet Switch | Microchip
VSC7430XMT

VSC7430XMT - 6-Port Carrier Ethernet Switch | Microchip

The Microchip Technology VSC7430XMT is a 6-port Carrier Ethernet switch with two integrated copper PHYs, 2.5 Gbps Ethernet switching capability, and a 324-pin PBGA package measuring 19 mm by 19 mm. It is designed for Carrier Ethernet edge demarcation and access equipment supporting MEF CE 2.0 service delivery. A Carrier Ethernet switch is a dedicated Ethernet switching semiconductor used to aggregate, classify, and forward traffic in telecommunications access networks. Unlike a general-purpose desktop Ethernet switch, a Carrier Ethernet switch is positioned for managed service-provider infrastructure, including service demarcation, mobile backhaul, and enterprise-access systems. The VSC7430 belongs to the broader hierarchy of Ethernet switch → network interface controller → networking semiconductor → integrated circuit. The principal features of the VSC7430XMT include six ports, two integrated Cu PHYs, and 2.5 Gbps switching performance. Its integrated copper PHYs reduce the external component count associated with copper physical-layer implementation, while the six-port architecture supports aggregation and demarcation functions in compact telecommunications equipment. The manufacturer describes the device as a market-ready solution for MEF CE 2.0 service delivery. The 324-PBGA package is a major thermal and routing consideration for high-speed network equipment. A 19 mm by 19 mm land pattern provides ample routing area, but it requires careful layer-transition planning, controlled impedance, power-plane integrity, and adequate thermal dissipation. Because the package has many connections and mixed signal paths, PCB stack-up and component placement can materially affect signal integrity and system reliability. Typical uses include IP edge demarcation platforms, Carrier Ethernet access equipment, enterprise service delivery, and mobile backhaul systems. In these applications, the switch consolidates several Ethernet-facing ports while providing a single switching platform for service handoff. Two integrated Cu PHYs are particularly useful where the system needs direct copper connectivity without a separate physical-layer device for every port. Designers should use the manufacturer datasheet for the authoritative pinout, power rails, clock requirements, reference-design connections, and exposed-pad implementation. Preserve the recommended high-speed trace geometry, provide decoupling close to supply pins, and validate the complete stack-up with the required Ethernet channel and compliance tests before production release. This page consolidates the confirmed VSC7430XMT product identity, package information, switching configuration, sourcing links, and practical implementation guidance. It also distinguishes documented drop-in substitutions from broader functional Ethernet-switch alternatives, helping engineers make package- and pin-compatible decisions rather than treating every competitor switch as interchangeable.

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VSC7435XMT - 6-Port Carrier Ethernet Switch | Microchip
VSC7435XMT

VSC7435XMT - 6-Port Carrier Ethernet Switch | Microchip

The Microchip Technology VSC7435XMT is a Serval-TE carrier Ethernet switch with 6 ports, 2 integrated copper PHYs, and integrated DPLL capability, housed in a 324-BGA package measuring 19 x 19 mm. Designed for IP edge demarcation and access equipment, it targets MEF Carrier Ethernet 2.0 service delivery for enterprise and mobile backhaul networks. A carrier Ethernet switch is a purpose-built network semiconductor that combines packet forwarding, physical-layer interfaces, timing functions, and service-delivery capabilities into one integrated device. The VSC7435XMT occupies the carrier Ethernet switch category within the broader hierarchy of Ethernet interface ICs, telecom semiconductors, and communications processors. Its integrated PHY architecture reduces the number of separate copper transceiver components required in access and edge equipment. The primary functional features are its 6-port Carrier Ethernet switching configuration, 2 integrated Gigabit Ethernet PHYs, and DPLL support. These characteristics make the device relevant to equipment that must aggregate or transport carrier-class Ethernet traffic while supporting synchronization needs associated with mobile backhaul. The 324-BGA package provides a high pin count suitable for the substantial signal, power, configuration, and management interfaces required by this networking equipment class. Microchip positions the VSC7435 within the Serval-TE family as a market-ready solution for MEF CE 2.0 service delivery. Its design targets IP edge demarcation and access equipment rather than general-purpose desktop Ethernet switching. This distinction is important because telecom access designs emphasize service classification, timing, synchronization, reliability, and interoperability with carrier-network operations in addition to conventional packet forwarding. Typical uses include Carrier Ethernet access nodes, mobile backhaul equipment, enterprise service-delivery platforms, and IP edge demarcation systems. In these applications, the integrated copper PHYs can support copper-facing network ports, while the broader switch platform organizes traffic and network services. Timing-sensitive deployments should evaluate the DPLL and synchronization implementation together with the external clocking architecture required by the complete equipment. Designers should base PCB layouts on the manufacturer's pin-definition table and recommended high-speed layout guidance rather than infer connectivity from the package outline. A 324-BGA device also demands careful power-plane design, multilayer stack-up planning, decoupling, and via-current planning. Confirm thermal performance under worst-case traffic and environmental conditions because a high-pin-count communications package concentrates power delivery and high-speed routing requirements in a compact area. This product page consolidates the manufacturer positioning, distributor package information, source links, application context, and design guidance for VSC7435XMT. It also separates confirmed product attributes from engineering details that require the complete datasheet, pin table, hardware design guidance, and qualification information before a production layout or substitution decision is approved.

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