Arayüz IC'leri
Alt Kategoriler
Ürünler (2.200+)
USB2223-NU-02 - USB 2.0 Flash Media Controller | Microchip
The Microchip Technology USB2223-NU-02 is a fourth-generation USB 2.0 flash media controller with a parallel interface, supplied in a 128-TQFP package measuring 14 x 20 mm. It operates from a 3 V to 3.6 V supply and has a specified operating supply current of 15 mA. The device consolidates USB-to-flash interface control into one device, reducing the need for separate host-interface circuitry in legacy removable-media equipment. A USB controller is a type of interface controller that connects a host computer to peripheral equipment using the Universal Serial Bus standard. Within the electronics hierarchy, this product is a USB interface controller, then an interface IC, then an integrated circuit. USB 2.0 describes the interface generation supported by the controller, while the parallel interface provides the connection to compatible flash-memory media and peripherals. The supported media family includes SmartMedia, xD Picture Card, Memory Stick, Secure Digital, and CompactFlash. The USB2223-NU-02 supports high-speed USB 2.0 data transfer and direct connection to flash memory devices. According to the verified product listings, it can operate multiple attached devices simultaneously, although only one device within a particular media group may be active at a time. This operating restriction is important when designing card-reader or multi-slot systems because the controller arbitrates access among supported media types rather than treating every attached device as independently concurrent. Typical uses include legacy CompactFlash and Secure Digital card readers, USB storage adapters, digital-camera accessories, and embedded systems that must bridge USB hosts to removable flash media. Because the controller targets parallel flash-media devices, it should not be confused with a general-purpose USB hub or a USB 3.x hub controller. A design based on the 128-pin TQFP also needs a pin-accurate footprint, adequate high-speed routing discipline, and verified power sequencing. For new USB storage products, confirm that the required flash-media protocol, connector, card-detection signals, and host compatibility match the controller before committing the board layout. The verified data identifies USB2223-NU-02 as discontinued or obsolete at one distributor and simultaneously shows distributor inventory at another, so lifecycle status should be treated as obsolete while availability may depend on remaining lot stock. Pricing is not published in the supplied sources. This page consolidates the verified supply-voltage, supply-current, package, protocol, and supported-media information with sourcing limitations, obsolete-part guidance, and design cautions that are not presented together in a typical distributor listing.
USB2224-NE-02 Bus-Powered USB 2.0 Flash Media Controller
The SMSC USB2224-NE-02 is a bus-powered USB 2.0 flash media controller designed to provide USB host connectivity for removable flash-memory formats; the package is not identified in the supplied verified excerpts. It is associated with SmartMedia, xD Picture Card, Memory Stick, High Speed Memory Stick, Memory Stick PRO, MS Duo, Secure Digital, Mini Secure Digital, and Transflash media support. Its bus-powered architecture allows the controller to operate from USB power rather than requiring a separate supply, making it suitable for compact card readers and portable storage accessories. A USB 2.0 flash media controller is an interface IC that bridges a USB host and one or more flash-memory card standards. In the product hierarchy, it belongs to interface controllers, then semiconductor devices used in data storage and connectivity. The USB interface handles enumeration and data transfer with the host, while the media-facing controller circuitry translates commands into the appropriate protocol for supported flash cards. The verified product information identifies the USB2224-NE-02 specifically as a bus-powered USB 2.0 flash media controller. The supplied excerpts associate it with legacy SmartMedia and xD formats as well as the Memory Stick family, Secure Digital, Mini Secure Digital, and Transflash. These format families are important because media voltage, command sets, and physical detection requirements differ between standards and must be validated against the manufacturer datasheet before a PCB is released. Typical uses include USB card readers, portable media adapters, digital-camera accessories, and legacy storage peripherals that require direct support for SmartMedia, xD, Memory Stick, SD, Mini SD, or Transflash cards. Such applications benefit from a dedicated controller because the host operating system does not need to implement each card protocol directly. A single USB interface also simplifies enclosure integration and device enumeration. The most important design consideration is exact footprint verification. The supplied search results confirm the device function and media compatibility but do not provide a reliable package name, pin count, pinout, pin-compatibility cross reference, or verified electrical limits. Engineers must compare the official schematic, land pattern, exposed-pad requirements, clock connections, and card-interface pins before replacing USB2224-NE-02 in an existing design. This page consolidates verified distributor pricing, controller capabilities, supported media formats, sourcing links, and engineering caveats. It also distinguishes documented information from unknown parameters so procurement and engineering teams can distinguish a known USB 2.0 media-controller function from details that still require datasheet review.
USB2227-NU-05 USB 2.0 Flash Media Controller | Microchip
The Microchip Technology USB2227-NU-05 is a fourth-generation USB 2.0 flash media controller with integrated card power FETs, designed to interface removable flash media with a USB host controller. The device is supplied in a 128-pin VTQFP package measuring 14 x 14 mm and supports SmartMedia, xD Picture Card, Memory Stick, High Speed Memory Stick, and Memory Stick PRO formats. A flash media controller is a specialized interface integrated circuit that bridges a USB host and one or more removable flash-card standards. It belongs to the product hierarchy of interface controller, specialized interface IC, USB interface controller, and semiconductor. Its purpose is to translate USB traffic and card signals while controlling the electrical supply to supported media through integrated power field-effect transistors. The principal verified features are USB 2.0 support, fourth-generation controller architecture, integrated card power FETs, support for five identified flash-media families, and a 128-pin VTQFP package. The SmartMedia and xD interfaces cover two legacy card families, while Memory Stick, High Speed Memory Stick, and Memory Stick PRO cover three related formats. These capabilities make the part relevant to legacy readers, portable media systems, and specialized data-transfer equipment. Technical implementation depends on the specific USB host and firmware platform. The integrated card power FETs reduce the need for separate switched power circuitry for supported media, while the large 128-pin package provides numerous card, USB, control, and power connections. Because detailed pin assignments, voltage limits, timing characteristics, and clock requirements are not present in the supplied verification data, those values must be confirmed in the manufacturer datasheet before schematic capture. Typical uses include USB card readers, multifunction peripherals, portable media players, industrial data loggers, and legacy embedded systems that accept one or more of the supported card formats. In a reader design, the USB host controller communicates with the USB2227, which then manages command exchange and card-power sequencing for the attached flash medium. Firmware must support the physical connector, media protocol, and target operating system. The primary design consideration is package and protocol verification. The 14 x 14 mm VTQFP requires a fine-pitch land pattern, careful escape routing, and thermal-aware power distribution. Designers should also confirm the exact supported card voltage, insertion-detection method, and USB host interface requirements rather than inferring them from the broad USB 2.0 designation. This page consolidates the verified manufacturer and distributor information with package constraints, sourcing guidance, replacement considerations, and practical integration notes. It also distinguishes verified attributes from missing technical data so engineers can identify which details still require confirmation in the USB2227 documentation.
USB2227-NU-11 USB 2.0 Flash Card Controller | Microchip
The Microchip Technology USB2227-NU-11 is a fourth-generation USB 2.0 flash media card controller with integrated card power FETs, presented in a 128-pin VTQFP package measuring 14 x 14 mm. The controller provides the interface between a USB host controller and flash memory cards while supporting USB 2.0 operation. Verified distributor data identifies a 3.3 V supply for the device, while another component listing reports a 1.8 V supply, indicating multiple internal supply domains. A flash media controller is a specialized interface IC that manages command transfer, card detection, data exchange, and media power control between a host system and removable or embedded flash storage. In the product hierarchy, it is a USB interface controller, an interface IC, an integrated circuit, and a semiconductor. The USB2227 belongs to the Microchip USB2227 family, which was developed as a single-chip solution for USB-connected flash-card equipment. The principal feature of the USB2227-NU-11 is its fourth-generation USB 2.0 flash-card media-controller architecture. Integrated card power FETs reduce the external circuitry needed to manage flash-card power. The device supports IDE-compatible flash-media operation, while the USB2227 family intentionally omits xD-Picture Card support, unlike the closely related USB2228. Its commercial operating-temperature grade is reported as 0 to 70 degrees Celsius. The USB2227-NU-11 is packaged in a low-profile 128-VTQFP, also described as a 128-pin TQFP with a 14 x 14 mm body and approximately 1 mm height. This package provides enough signal and power pins for card-power control, storage interfaces, USB signaling, and support circuitry. Because the package dimensions and pin mapping are critical for PCB compatibility, engineers should verify the manufacturer pinout and land pattern directly against the official USB2227/USB2228 datasheet before layout release. Typical uses include USB card readers, portable media devices, digital-camera accessories, industrial data-collection equipment, and embedded systems that read flash-memory cards through a USB host connection. The controller is most appropriate when a board requires dedicated flash-card interface circuitry rather than a general-purpose host controller. Its integrated card power FETs and USB 2.0 media interface can simplify the surrounding design while preserving a dedicated path to compatible flash storage. The principal design consideration is compatibility across the USB host, flash-card media, power rails, and exposed 128-pin footprint. Input and output capacitors, media-power routing, high-speed USB signal integrity, and ground-return paths must follow the manufacturer reference layout and recommended component values. The exact operating voltage of each labeled supply, supported media matrix, clocking requirements, and complete pin assignments are not included in the supplied search results and must be confirmed from the manufacturer datasheet. This page combines verified distributor availability, manufacturer family information, package details, practical application guidance, and an honest drop-in comparison. Its value is the separation of confirmed USB2227-NU-11 facts from unavailable specifications, helping engineers identify what can be used for initial sourcing and what still requires datasheet-level verification.
USB2228-NE-05 - USB 2.0 Flash Media Controller | SMSC
The SMSC Corporation USB2228-NE-05 is a fourth-generation USB 2.0 flash-card media controller that provides the interface between a USB host controller and flash media cards. The device is supplied in a 128-pin VTQFP package measuring 14 mm by 14 mm, and the verified distributor listing identifies it as a USB controller with a USB 2.0 serial interface. Its integrated design is intended to reduce the external circuitry needed to connect removable flash media to a USB host. A USB flash-media controller is an interface IC within the broader USB interface-controller category and the semiconductor hierarchy. It translates host-side USB commands and signals into media-card operations, while also managing the electrical interface between the host and the flash card. The USB2228 generation supports the xD-Picture Card format for licensees of that format, according to the Microchip product page. Verified information identifies the USB2228-NE-05 as a fourth-generation USB 2.0 flash media controller with integrated card-power FETs. The controller is designed for systems requiring a dedicated USB-to-flash-card interface rather than a general-purpose USB controller. Its 128-pin VTQFP package provides the connections required for host, media, power-management, and associated control functions, although individual pin assignments were not available in the supplied source data. The product's architecture places the USB host interface, flash-media interface, and card-power control in one integrated component. This integration can simplify board routing and reduce the component count in USB card-reader or portable-media equipment. The manufacturer product page describes support for a single-card interface and xD-Picture Card support, while the datasheet-directory result describes the part as a fourth-generation USB 2.0 flash media controller with integrated card-power FETs. Typical applications include USB card readers, digital cameras, portable media equipment, and embedded systems that transfer files between a USB host and flash media. The controller is particularly relevant where a USB 2.0 host must communicate with removable flash media using a dedicated, integrated interface. Compared with a software-based or discrete card interface, this controller centralizes protocol handling and card-power control in one package. Designers should verify the complete pinout, clock requirements, card-support matrix, power sequencing, and PCB layout constraints against the manufacturer datasheet before releasing a PCB. The supplied search results establish the device family, USB 2.0 interface, package size, 128-pin count, card format support, lifecycle status, and basic compliance indication, but they do not provide a complete pin table or confirmed production pricing. This page consolidates the available manufacturer, distributor, and lifecycle information for USB2228-NE-05, identifies the limits of the supplied data, and provides comparison and design context for engineers evaluating this fourth-generation USB 2.0 flash-card controller.
USB2228-NU-05 - USB 2.0 Flash Media Controller | Microchip
The Microchip Technology USB2228-NU-05 is a USB 2.0 flash media controller with a parallel host interface, operating from a 3 V to 3.6 V supply and consuming a listed 75 mA of supply current. It is packaged in a 128-pin VTQFP measuring 14 mm by 14 mm. The device interfaces a USB host controller with removable flash media and supports xD-Picture Card, SmartMedia, Memory Stick, High Speed Memory Stick, and Memory Stick PRO formats according to the manufacturer documentation. A USB flash media controller is a type of USB interface controller that bridges a USB host and one or more flash-card formats. In the product hierarchy, it belongs to interface controllers, then USB controllers, then integrated circuits and semiconductors. Rather than implementing flash-card protocol conversion in a system controller, the USB2228 provides dedicated interface circuitry and on-chip firmware for communicating with supported removable media. This division of responsibility can simplify host-side software and reduce the electrical burden on a general-purpose embedded processor. The fourth-generation controller supports USB 2.0 operation with a parallel interface. Its 3 V to 3.6 V operating-supply range is suitable for systems using a regulated 3.3 V rail. The listed 75 mA supply current provides a baseline for power budgeting, although application-specific current can vary with operating state and attached media. Integrated card-power FETs are identified in the product description, allowing the controller to manage card-power signaling in designs using the supported flash-card interfaces. The USB2228 is designed for compact removable-media systems rather than general-purpose USB peripherals. Its supported media families include xD-Picture Card, SmartMedia, Memory Stick, High Speed Memory Stick, and Memory Stick PRO. On-chip firmware reads and writes High Speed Memory Stick and MS PRO media, as stated in the USB2227/USB2228 datasheet. The 128-pin VTQFP provides the mixed-signal, power, logic, and media-interface connections required by this multi-format controller. Typical uses include legacy USB card readers, portable media adapters, multifunction peripherals, and embedded systems requiring removable flash-media access. The controller is most appropriate when an existing USB host must interoperate with one of the explicitly supported card formats. Software and PCB validation are necessary before adopting this controller in a new design because support for newer SD, CF, or USB flash media is not established by the provided sources. Designers should verify the exact pin assignments, clock requirements, media-connector routing, card-power limits, and host-driver support against the manufacturer datasheet. The 14 mm by 14 mm VTQFP also requires a 128-lead PCB land pattern and careful signal-integrity review of parallel and USB interfaces. The provided data does not expose individual pin names, so no pin-level assignments are asserted in this record. This page consolidates verified manufacturer and distributor information, distinguishes confirmed USB 2.0, voltage, package, current, and media-support facts from unspecified parameters, and provides drop-in alternatives with their sourcing limits documented. It is intended to support engineering selection while avoiding unsupported claims about pinout, pricing, lifecycle transitions, or unlisted electrical characteristics.
USB2228-NU-11 - USB 2.0 Flash Media Controller | Microchip
Microchip Technology USB2228-NU-11 is a fourth-generation USB 2.0 flash media controller with integrated card power FETs, operating from a 3.3 V supply in a 128-pin TQFP surface-mount package measuring 14 mm by 14 mm. It provides the interface between a USB host controller and flash media cards while handling the electrical requirements of card detection and card power delivery. A USB flash media controller is a specialized interface IC that bridges a USB host with removable or embedded flash storage. Within the product hierarchy, it is a USB interface controller, an interface IC, and ultimately a semiconductor. The USB2228 family combines USB-to-flash-media interfacing with on-chip card power control, reducing the amount of external circuitry required in systems that expose flash-card storage through a USB connection. The verified product information identifies USB 2.0 support, fourth-generation controller technology, integrated card power FETs, and a 3.3 V operating supply. The manufacturer product page also identifies support for the xD-Picture Card format for licensees of that format. These features position the device for USB storage readers, embedded media systems, portable electronics, and data-transfer equipment that requires dedicated flash-media interface circuitry. The USB2228 operates between an external USB host controller and the flash-media side of the design. Its integrated card power FETs manage the power path associated with supported media cards, while on-chip firmware supports reading and writing operations. Compared with a general-purpose USB host controller, this specialized architecture can reduce host-side media-handling complexity and concentrate card-interface logic in a dedicated controller. Typical applications include USB flash-card readers, compact card-access systems, embedded storage products, and legacy or specialized portable devices using USB 2.0 media connectivity. Design selection should account for the 3.3 V supply requirement, the 128-pin footprint, supported media formats, USB host-controller compatibility, and the card power requirements of the target product. The most important implementation check is the physical interface. The component uses a 128-pin, 14 mm by 14 mm TQFP package, so layout and assembly plans must use the exact manufacturer pinout and land pattern rather than a generic 128-pin symbol. Input, output, power, ground, card-power, and configuration connectivity must also be verified against the manufacturer documentation. This page consolidates verified manufacturer and distributor information, distinguishes the available same-family replacement from unverified alternatives, identifies missing technical data without guessing, and provides practical selection and integration guidance for engineers evaluating USB2228-NU-11.
USB2229-NU-02 - USB 2.0 Card Reader Controller | Microchip
Microchip Technology USB2229-NU-02 is a fifth-generation USB 2.0 flash-media and IrDA controller with a 3.3 V supply, IrDA 1.1 parallel interface, and integrated card power FETs in a 128-pin TQFP package measuring 14 x 14 mm. It provides one USB host interface for mainstream flash-card media and includes IrDA controller capability. A USB flash-media controller is a mixed-signal interface semiconductor that bridges a USB host and removable flash storage. It belongs to the controller hierarchy: USB interface controller, peripheral interface IC, digital and analog mixed-signal IC, and ultimately semiconductor. By converting host USB traffic into media-specific commands and coordinating card power, this device reduces the processing burden placed on an external system controller. The verified feature set includes fifth-generation USB 2.0 operation, support for mainstream flash-card interfaces, IrDA 1.1 with a parallel interface, integrated card power FETs, and operation from a 3.3 V supply. The 128-pin TQFP package provides the mixed analog, digital, logic, power-management, and external media-interface connections required by this multifunction controller. According to Microchip Technology, USB2229-NU-02 is identical to the USB2230 except that USB2230 adds xD-Picture Card support. This distinction is important in drop-in evaluation: a USB2230 can offer broader media compatibility, but software, firmware, card-support tables, and board requirements must be reviewed before substitution. The IrDA and parallel-interface requirement must also match the target design. Typical uses include USB card readers, multifunction peripherals that combine storage with infrared communication, and embedded systems that need to expose flash media through a USB 2.0 host connection. The integrated card power FETs simplify card-interface power management, while the IrDA block supports infrared data communication in designs that require both functions. Designers should verify the complete 128-pin pinout, supported card standards, electrical timing, and firmware support against the manufacturer datasheet before layout or firmware work. Because the package contains many mixed-signal and high-speed USB functions, careful grounding, card-interface isolation, power sequencing, and signal-integrity review remain essential. This product page consolidates verified manufacturer and distributor information, packaging details, functional comparisons, application guidance, and design cautions. It also distinguishes documented drop-in candidates from unsupported cross-brand alternatives, helping engineers make an evidence-based replacement decision without assuming that every USB card controller is electrically or firmware compatible.
USB2230-NU-02 - USB 2.0 Flash Media & IrDA Controller | Microchip
The Microchip Technology USB2230-NU-02 is a USB 2.0 interface controller for flash media and IrDA connectivity, supplied in a 128-TQFP 14 x 14 mm package. It operates from a 3.0 V to 3.6 V supply, has a specified supply current of 30 mA, and supports both USB and IrDA interfaces. The controller also provides integrated card power FETs for compatible flash-media connections. A USB host interface controller is a semiconductor that bridges a USB port and one or more peripheral interfaces. In the broader hierarchy, USB2230-NU-02 belongs to interface controllers, interface ICs, and integrated circuits. Its two principal interface functions are USB 2.0 host connectivity and IrDA infrared data communication, allowing one controller to serve systems that need both wired USB and short-range optical data paths. The main verified feature set includes USB 2.0 operation, parallel and serial interface support, IrDA controller functionality, flash-media controller functionality, a 3.0 V to 3.6 V operating supply range, 30 mA supply current, and integrated card power FETs. The 128-TQFP package provides 128 external connection points in a 14 x 14 mm body, making it appropriate for embedded equipment with sufficient board area for a high-pin-count surface-mount controller. The USB2230 is identified by Microchip as a fifth-generation USB 2.0 composite device. It interfaces a single USB host port with mainstream flash-card media interfaces and also includes an IrDA controller. Its integrated card power FETs can simplify power-delivery arrangements for supported media interfaces, while its composite architecture can reduce the need for separate controllers when a product must support USB media access and infrared communication. Typical applications include multifunction printers, media readers, docking stations, portable data-transfer equipment, embedded USB hosts, and industrial or communications equipment that combines removable flash storage with IrDA. In these systems, USB 2.0 provides the connection to a host computer, while the flash-media interface handles card access and the IrDA block provides infrared communication. The integrated card power FETs are especially relevant where the attached media interface requires controlled card-power delivery. Designers should verify the complete pin configuration, signal mapping, clocking requirements, media-interface implementation, and card-power topology against the manufacturer datasheet before layout release. Because this controller uses a 128-TQFP package and connects external flash media through dedicated pins, routing, return paths, and connector placement can materially affect implementation complexity. The verified data also identifies the part as obsolete, so new production designs should confirm availability and lifecycle strategy before committing to the MPN. This product page consolidates verified distributor pricing, package information, interface capabilities, source links, and same-family drop-in candidates into an engineering-oriented reference. It also distinguishes confirmed specifications from fields that still require datasheet confirmation, making the information more useful for lifecycle review, footprint assessment, and replacement planning.
USB2250-NU-05 - USB 2.0 Flash Media Controller | Microchip
The Microchip Technology USB2250-NU-05 is a USB 2.0 flash media card controller with a 3.0 V to 3.6 V supply range, a 128-pin VTQFP package measuring 14 mm by 14 mm, and supply-current specifications reported between 135 mA and 165 mA by available product listings. It is designed to provide a high-speed serial interface between a USB host and flash memory cards. A USB flash media controller is an interface IC within the broader semiconductor and interface-controller hierarchy. It manages the electrical and protocol-level connection between a USB host controller and removable or embedded flash media. The USB2250 belongs to Microchip's USB225x family, which is positioned around USB 2.0 compliance, interoperability, and rapid transfer of data to widely used flash memory cards. Key features include USB 2.0 interface operation, FlashMedia controller functionality, a serial interface, and operation from 3.0 V to 3.6 V. The supplied data identifies the controller as an ultra-fast USB 2.0 flash media solution. Its 128-pin VTQFP package provides a large number of mixed-signal, power, ground, and interface connections, allowing support for multiple media interfaces and compact card-reader or embedded-storage designs. The USB2250-NU-05 combines a USB host-side interface with flash-media-facing controller functions. Available manufacturer information describes the family as providing comprehensive USB 2.0 compliance and interoperability, while distributor records characterize USB2250-NU-05 as a USB 2.0 controller in a 128-VTQFP package. Exact clock, transfer-rate, card-interface, and electrical-limit details were not included in the supplied search records and should therefore be confirmed against the Microchip datasheet before design release. Typical uses include USB card readers, portable storage systems, digital cameras, personal digital devices, embedded data loggers, and industrial equipment that transfers files through a USB 2.0 host. The device is most appropriate where a dedicated flash-media controller is preferable to implementing the media interface and card-management logic directly in a host controller. Designers should allocate the complete 128-pin footprint, including exposed-pad and thermal requirements where applicable, and should use the manufacturer reference schematic for exact pin assignments. Because the supplied records use differing maximum supply-current values, 135 mA and 165 mA, power-budget and worst-case startup decisions should use 165 mA until the device-specific datasheet condition is confirmed. This product page consolidates verified manufacturer and distributor information, package details, commercial availability data, application guidance, and drop-in alternatives into a design-focused reference. It also distinguishes documented values from missing technical parameters rather than estimating them, helping engineers identify what must be checked in the authoritative datasheet.
USB2250-NU-06 - USB 2.0 Flash Controller | Microchip
The Microchip Technology USB2250-NU-06 is a USB 2.0 flash media card controller operating at 35 Mbit/s with a 3.3 V supply, housed in a 128-pin VTQFP package measuring 14 mm by 14 mm. It provides the interface between a USB host and compatible flash media cards, combining USB device connectivity with dedicated media-card control logic. A USB flash media card controller is an interface IC within the broader USB controller and storage-interface ecosystem. Its role is to translate commands and data between a USB host and removable flash media while coordinating protocol handling, card interfacing, and host connectivity. The USB2250 belongs to Microchip’s USB225x family, which targets high-speed USB 2.0 flash-media applications requiring a dedicated controller rather than a general-purpose host or peripheral controller. The verified product data identifies the USB2250-NU-06 as a USB 2.0 interface controller with a maximum host data-transfer rate of 35 Mbit/s. It operates from a 3.3 V supply and supports the Ultra-Fast USB 2.0 flash-media controller role. Its 128-pin VTQFP package provides the interface and support circuitry required for a multi-contact memory-card implementation, although individual pin functions were not included in the supplied excerpts. The 35 Mbit/s interface rate corresponds to full-speed USB 2.0 operation and is substantially faster than a low-speed USB connection. This makes the controller relevant to products that need a dedicated bridge between a USB host and flash media, including card readers, portable storage equipment, industrial data-collection equipment, and embedded storage systems. The controlled operating supply of 3.3 V also supports integration into modern embedded systems that operate from a 3.3 V power domain. The package is the principal implementation constraint for engineers evaluating this controller. A 128-pin VTQFP with a 14 mm by 14 mm body and 0.40 mm pitch requires a multilayer PCB and fine-pitch assembly capability. The larger lead count and exposed routing demands are considerably more substantial than those of a compact USB interface controller, but they provide the connections needed for a full flash-media controller implementation. When designing a PCB around the USB2250-NU-06, verify the exact pin configuration, recommended power and decoupling networks, clock requirements, media-card interface details, and layout guidance in the manufacturer datasheet before release. Because the supplied web excerpts do not provide a verified pin table, stack-up recommendation, impedance value, or thermal-resistance figure, those details should not be inferred from the package alone. This product page consolidates verified distributor and manufacturer information, distinguishes same-family alternatives, and adds practical selection and PCB-design guidance. It also highlights where engineering teams must consult the complete USB2250/USB2251 datasheet for pin-level, electrical, and layout requirements that cannot be substantiated by the supplied search records.
USB2251-NU-06 - USB 2.0 Flash Media Controller | Microchip
Microchip Technology USB2251-NU-06 is a Hi-Speed USB 2.0 flash media card controller with a 24 MHz maximum clock frequency and a maximum data transfer rate of 35 Mbps, housed in a 128-terminal VTQFP package measuring 14 x 14 mm. It is designed to provide an interface between a USB host controller and flash media cards. A USB flash media card controller is a specialized interface IC that translates host-side USB traffic into commands understood by flash-memory media. Within the broader hierarchy, it is a USB interface controller, an interface IC, an integrated circuit, and a semiconductor designed for removable or embedded flash-storage applications. The USB2251 family supports Hi-Speed USB 2.0 operation and broad media-card interoperability for devices requiring direct access to flash storage. The key features include USB 2.0 compatibility, a 24 MHz maximum operating clock, a 35 Mbps maximum data-transfer rate, I2C bus compatibility, and a 128-terminal surface-mount package. The 14 x 14 mm VTQFP format provides 128 electrical connections, allowing the controller to expose multiple media interfaces, control signals, data buses, and power-management connections. A tray package is listed by the distributor data for this ordering code. Technically, the USB2251 belongs to Microchip's USB225x controller family, which is designed around a high-speed USB 2.0 host interface and flash-media-card control functions. Its 35 Mbps maximum transfer rate is materially faster than the 12 Mbps ceiling associated with Full-Speed USB operation, making it suitable for flash-media devices where transfer latency affects data synchronization, file copying, and application startup. The controller operates from a 3.3 V supply according to the distributor product listing. Typical uses include USB flash-memory readers, portable storage devices, embedded storage systems, digital media equipment, and host systems that need a dedicated USB-to-flash bridge. In a card-reader implementation, the controller handles USB enumeration and transaction exchange with the host while transferring data to compatible flash media through the device's card-interface signals. The I2C-compatible interface can support configuration or management functions where the host or system controller requires them. Designers should verify the complete 128-pin signal map, configuration options, voltage levels, clock requirements, and media-support matrix in the manufacturer datasheet before PCB release. Because no verified 128-terminal pin table was supplied, this page does not infer pin names or numbering. USB routing also requires careful controlled-impedance layout, short high-speed traces, solid reference planes, and compliant power distribution to avoid signal-integrity and EMC issues. This page consolidates the verified manufacturer description, distributor package data, operating highlights, ordering information, and traceable web sources. It also distinguishes verified drop-in-family candidates from functional equivalents that would require a different footprint, helping engineers compare sourcing options without mistaking a merely similar USB storage controller for a pin-compatible replacement.
USB2412-DZK - 2-Port USB 2.0 Hub Controller | Microchip
The Microchip USB2412-DZK is a low-power, two-port USB 2.0 hub controller IC using a single Transaction Translator architecture, with a 3 V to 3.6 V supply range and support for low-speed, full-speed, and high-speed downstream devices in a 28-QFN package. It is designed for embedded USB hub applications requiring two downstream ports and USB 2.0 Hi-Speed operation. A USB hub controller is an interface IC that manages traffic between one upstream USB host connection and multiple downstream USB ports. The USB2412 belongs to the USB interface-controller hierarchy, where USB 2.0 connectivity, transaction translation, port management, and embedded system integration combine into a dedicated hub solution. Its single Transaction Translator, or STT, architecture is intended to reduce implementation complexity in compact USB hub designs. The verified product information identifies two downstream ports, USB 2.0 operation, low-power operation, and support for low-speed, full-speed, and high-speed downstream devices when the hub operates at high speed. The controller is available in a 28-QFN package, while distributor records identify the package as 28-VFQFN with an exposed pad. The USB interface supports system integration with embedded USB host, peripheral, docking, and industrial equipment designs. The 3 V to 3.6 V operating supply range places the device in a low-voltage digital interface class. USB data integrity depends on correct PCB routing, adequate power distribution, compliant connector implementation, and proper decoupling. The exposed-pad package requires attention to thermal and layout practices, even though the verified snippets do not provide a complete electrical limit table or detailed power-consumption values. Typical applications include two-port embedded USB hubs, self-powered USB equipment, industrial control systems, test and measurement fixtures, docking equipment, and compact host systems that need USB device expansion. The two-port architecture is useful when a system must connect peripherals without adding multiple independent host controllers. When selecting a replacement, verify the complete pinout, package dimensions, exposed-pad connection, USB signal routing, clock requirements, and power sequencing against the original design. The USB2412-DZK-TR is a tape-and-reel ordering variant, while other listed controllers or transceivers may provide different functions and must not be treated as drop-in substitutes without manufacturer verification. This page consolidates the verified manufacturer description, distributor package data, official datasheet link, application guidance, and cross-reference findings to support engineering selection. It distinguishes confirmed USB2412 attributes from parameters that require the manufacturer datasheet or an authorized design review.
USB2422-CP - Low-Power 2-Port USB 2.0 Hub Controller | Microchip Technology
The Microchip Technology USB2422-CP is a low-power, single-transaction-translator USB 2.0 hub controller with two downstream ports, packaged in a 24-QFN (4x4 mm) package. It supports an upstream Hi-Speed and Full-Speed hub connection or a Full-Speed-only configuration, while downstream devices can operate at Low-Speed, Full-Speed, or Hi-Speed when configured as a Hi-Speed hub. The controller is designed for embedded USB expansion systems requiring compact bus routing and USB 2.0 compatibility. Its two-port architecture integrates downstream-port USB connectivity into one controller rather than requiring separate hub devices. A USB hub controller is an interface IC within the broader USB interface-controller and semiconductor hierarchy. In an embedded system, the upstream port connects the hub to a host controller, while each downstream port connects external peripherals such as storage, keyboards, communications modules, or service interfaces. USB2422-CP acts as the transaction translator and hub-management element between those connections, helping the host system organize USB traffic across two ports. Its support for Full-Speed and Hi-Speed operation makes it relevant to legacy USB 2.0 embedded designs rather than modern USB 3.x or USB4 systems. The principal verified feature set includes a 2-port USB 2.0 hub configuration, single transaction translator operation, upstream Hi-Speed and Full-Speed attachment capability, and downstream Low-Speed, Full-Speed, and Hi-Speed support. Microchip describes the device as low power, which is valuable in embedded equipment where USB expansion must not dominate the system power budget. The 24-QFN package provides a compact surface-mount footprint, but its exposed thermal and electrical requirements must be handled according to the manufacturer datasheet. The controller is positioned between a USB host and downstream USB peripherals. When configured as a Hi-Speed hub, the upstream link and compatible downstream links can use USB 2.0 Hi-Speed operation; when used as a Full-Speed-only hub, the design avoids requiring Hi-Speed operation. Device attachment, removal, enumeration, and power-management behavior must be evaluated against the USB host software and the electrical requirements of the connected peripherals. The verified web data does not provide current unit pricing, stock status, lead time, detailed pin names, or all electrical timing and current limits, so those values are not inferred here. Typical applications include embedded instrumentation, industrial control panels, compact USB expansion boards, peripheral consolidation, and USB connectivity in systems that already use a USB 2.0 host controller. A hub may be useful when a processor exposes one host port but the enclosure requires two external connections. The design should verify connector protection, power switching, cable length, chassis grounding, and host compatibility. The manufacturer datasheet is the authoritative source for pin assignments, electrical limits, configuration registers, and implementation details. Use the USB2422-CP when the existing PCB is designed around its 24-QFN footprint and the application needs a compact two-port USB 2.0 hub controller. Confirm package pin compatibility, operating conditions, and USB host requirements before treating any substitute as a drop-in replacement. This page combines verified manufacturer descriptions, distributor package information, datasheet references, application context, and procurement guidance. It distinguishes documented facts from missing parameters and avoids inventing prices, pin assignments, electrical limits, or replacement parts.
USB2422-CP-TR - Low-Power 2-Port USB 2.0 Hub Controller | Microchip Technology (Tape & Reel)
The Microchip Technology USB2422-CP-TR is a low-power, single-transaction-translator USB 2.0 hub controller with two downstream ports, packaged in a 24-QFN (4x4 mm) package. It supports an upstream Hi-Speed and Full-Speed hub connection or a Full-Speed-only configuration, while downstream devices can operate at Low-Speed, Full-Speed, or Hi-Speed when configured as a Hi-Speed hub. The controller is designed for embedded USB expansion systems requiring compact bus routing and USB 2.0 compatibility. Its two-port architecture integrates downstream-port USB connectivity into one controller rather than requiring separate hub devices. A USB hub controller is an interface IC within the broader USB interface-controller and semiconductor hierarchy. In an embedded system, the upstream port connects the hub to a host controller, while each downstream port connects external peripherals such as storage, keyboards, communications modules, or service interfaces. USB2422-CP-TR acts as the transaction translator and hub-management element between those connections, helping the host system organize USB traffic across two ports. Its support for Full-Speed and Hi-Speed operation makes it relevant to legacy USB 2.0 embedded designs rather than modern USB 3.x or USB4 systems. The principal verified feature set includes a 2-port USB 2.0 hub configuration, single transaction translator operation, upstream Hi-Speed and Full-Speed attachment capability, and downstream Low-Speed, Full-Speed, and Hi-Speed support. Microchip describes the device as low power, which is valuable in embedded equipment where USB expansion must not dominate the system power budget. The 24-QFN package provides a compact surface-mount footprint, but its exposed thermal and electrical requirements must be handled according to the manufacturer datasheet. The controller is positioned between a USB host and downstream USB peripherals. When configured as a Hi-Speed hub, the upstream link and compatible downstream links can use USB 2.0 Hi-Speed operation; when used as a Full-Speed-only hub, the design avoids requiring Hi-Speed operation. Device attachment, removal, enumeration, and power-management behavior must be evaluated against the USB host software and the electrical requirements of the connected peripherals. The verified web data does not provide current unit pricing, stock status, lead time, detailed pin names, or all electrical timing and current limits, so those values are not inferred here. Typical applications include embedded instrumentation, industrial control panels, compact USB expansion boards, peripheral consolidation, and USB connectivity in systems that already use a USB 2.0 host controller. A hub may be useful when a processor exposes one host port but the enclosure requires two external connections. The design should verify connector protection, power switching, cable length, chassis grounding, and host compatibility. The manufacturer datasheet is the authoritative source for pin assignments, electrical limits, configuration registers, and implementation details. Use the USB2422-CP-TR when the existing PCB is designed around its 24-QFN footprint and the application needs a compact two-port USB 2.0 hub controller. Confirm package pin compatibility, operating conditions, and USB host requirements before treating any substitute as a drop-in replacement. This page combines verified manufacturer descriptions, distributor package information, datasheet references, application context, and procurement guidance. It distinguishes documented facts from missing parameters and avoids inventing prices, pin assignments, electrical limits, or replacement parts.
USB2422-I/MJ - 2-Port USB 2.0 Hub Controller | Microchip
The Microchip Technology USB2422-I/MJ is a low-power, single-transaction-translator USB 2.0 hub controller with two downstream ports, 3.3 V operation, and a 24-QFN 4x4 mm package. It supports Low-Speed, Full-Speed, and Hi-Speed downstream devices when configured as a Hi-Speed hub, while the upstream connection can operate as a Hi-Speed and Full-Speed hub or as a Full-Speed-only hub. A USB hub controller is an interface IC that manages one upstream USB connection and multiple downstream USB ports. Within the broader hierarchy of USB interface controllers, the USB2422 combines port routing, power-switch control, overcurrent protection, internal voltage regulation, and USB signal conditioning in one compact device for embedded systems. The part includes BC1.1 protocol support, downstream port power-switch control, overcurrent protection, an internal regulator, and ESD protection. Required USB port resistors are integrated, including D+ and D- series-termination resistors and the specified pull-down or pull-up resistors. Internal pull-ups are also provided for downstream overcurrent-sense inputs, reducing external component count. Its single-translation-translator architecture serves embedded USB applications in which low power, compactness, and upstream-device integration matter more than independent simultaneous translation on every downstream port. The device can therefore support compact host ports in equipment that otherwise lacks native USB hub routing. Typical uses include industrial control panels, medical equipment, printers, embedded test systems, set-top boxes, and other USB 2.0 equipment requiring two downstream connections. Applications should account for the hub's single-translator architecture and verify downstream-device compatibility before final system release. PCB implementation should preserve the manufacturer's recommended USB trace geometry, place decoupling and support components near their associated pins, and route differential D+ and D- paths as a matched pair. USB signal integrity depends on controlled impedance, minimized stubs, and uninterrupted return-path continuity across the connector, controller, and protection circuitry.
USB2422/MJ - 2-Port USB 2.0 Hub Controller | Microchip
The Microchip Technology USB2422/MJ is a low-power, single-transaction-translator, two-port USB 2.0 hub controller for embedded USB solutions. It supports one upstream port and two downstream ports in a 24-QFN package measuring 4 mm by 4 mm. The controller can operate as a Hi-Speed and Full-Speed hub or as a Full-Speed-only hub, while downstream devices may use Low-Speed, Full-Speed, or Hi-Speed when the hub is configured for Hi-Speed operation. A USB hub controller is an interface integrated circuit that manages traffic between one upstream USB host connection and multiple downstream ports. Within the USB interface hierarchy, it belongs to the class of USB controllers and hub-controller devices used to expand USB connectivity in embedded systems. Unlike a host-controller interface that directly manages a host bus, the USB2422/MJ translates USB traffic for attached downstream devices and centralizes hub functions. The verified product information identifies the USB2422 as a two-port USB 2.0 Hi-Speed hub controller. Microchip states that all required USB-port resistors are integrated, including the series termination resistors and the required pull-down and pull-up resistors on D+ and D- pins. The downstream-port over-current sense inputs also have internal pull-up resistors. These integrated functions can reduce external discrete-component count while simplifying PCB layout. The single-translation architecture is a key engineering distinction. It uses one transaction translator for the two downstream ports rather than assigning an independent translator to every port. This can be suitable for embedded USB expansion where the application does not require maximum simultaneous transaction concurrency. By contrast, Microchip identifies USB2512B as a Multiple Transaction Translator design for applications needing more performance or parallel downstream-port operation. Typical uses include embedded instrumentation, industrial control equipment, printers, test systems, set-top equipment, and other USB-enabled products that need two downstream connections from one embedded host interface. The exact upstream and downstream interface rates, electrical limits, pin names, clock requirements, and operating-temperature details must be confirmed in the manufacturer datasheet before layout or firmware development. For robust implementation, follow the USB2422 Hardware Design Checklist and preserve the required USB routing, termination, bypass, and grounding practices. The 24-QFN footprint also demands careful thermal-pad assembly and adequate exposed-pad copper. Because the supplied distributor snippets do not provide a complete pinout, this record avoids inventing pin assignments and marks missing technical values explicitly where required. This page consolidates the verified Microchip product description, distributor listings, datasheet links, and hardware-design references. It also distinguishes a true package-compatible replacement from merely similar USB hub controllers, which is essential because USB hubs may differ in translator architecture, pinout, package, clocking, and host-interface requirements.
USB2422T-I/MJ - 2-Port USB 2.0 Hub Controller | Microchip
Microchip USB2422T-I/MJ is a low-power, two-port USB 2.0 hub controller with a single transaction translator, designed for embedded USB systems in a 24-QFN 4 x 4 mm package. It supports Hi-Speed, Full-Speed, and Low-Speed downstream devices when configured as a Hi-Speed hub and operates from 3 V to 3.6 V. The two downstream ports make the device suitable for compact host systems that need to add USB connectivity without employing a larger multi-port hub controller. A USB hub controller is an interface integrated circuit within the USB interface-controller category and broader semiconductor hierarchy. It manages traffic between one upstream USB port and multiple downstream ports, providing device attachment, enumeration, power management, and transaction handling. USB 2.0 hubs can operate at Hi-Speed, Full-Speed, or Low-Speed, allowing one embedded platform to support peripherals with different transfer capabilities while maintaining backward compatibility. The USB2422 uses a single transaction translator rather than the multiple-port implementation associated with larger hub controllers. Its principal benefits are low power consumption, a compact 24-QFN footprint, and integration for two downstream USB ports. The verified distributor information identifies the device as a low-pin-count, two-port USB 2.0 Hi-Speed hub controller. Tape-and-reel ordering is indicated by the /MJ package suffix, while the /I suffix identifies the orderable grade. The controller can attach to an upstream port as a Hi-Speed and Full-Speed hub or as a Full-Speed-only hub. When used in Hi-Speed mode, downstream Low-Speed, Full-Speed, and Hi-Speed devices are supported. This flexibility lets one board design accommodate different host-controller capabilities and peripheral populations. The operating range of 3 V to 3.6 V also allows integration with conventional 3.3 V embedded USB power rails. Typical uses include compact industrial equipment, USB-to-serial bridges, data-acquisition equipment, set-top boxes, printers, and embedded computing platforms requiring two USB connections. The hub is also appropriate where an embedded host must expose multiple USB peripherals while conserving board area. Because the USB2422 is a hub controller rather than a general-purpose host controller, the upstream system must provide the USB host interface and the required software support. PCB implementation requires careful high-speed signal routing, controlled impedance, short differential traces, solid ground-plane continuity, and compliant USB connector and protection implementation. Decoupling should be placed close to the supply pins, while differential pairs should remain continuously referenced to an uninterrupted ground plane. The exposed-pad thermal and electrical requirements should follow the manufacturer land pattern and PCB stack-up guidance. This page combines the verified manufacturer and distributor information with practical USB layout guidance, comparison data, sourcing answers, and design considerations. Exact pin assignments, electrical limits, host-interface timing, and pricing details require confirmation in the current Microchip datasheet and authorized distributor listings.
USB2422T/MJ - 2-Port USB 2.0 Hub Controller | Microchip
The Microchip Technology USB2422T/MJ is a low-power, two-port USB 2.0 hub controller with a single transaction translator, designed for embedded USB hub implementations. It supports High-Speed and Full-Speed operation on the upstream side, while downstream devices can operate at Low-Speed, Full-Speed, or High-Speed when the hub is configured for High-Speed operation. The device is supplied in a 24-QFN 4 x 4 mm package. A USB hub controller is an interface IC that manages traffic between an upstream host and multiple downstream USB peripherals. The USB2422 combines the physical-layer connectivity, port management, transaction translation, and hub-specific control functions required to expand one host USB port into two downstream ports. It belongs to the USB interface controller hierarchy, which sits within interface ICs and broader embedded semiconductor systems. The controller integrates the required USB port resistors, including series termination resistors on D+ and D-, pull-down and pull-up resistors on D+ and D-, and internal pull-ups for the downstream over-current sense inputs. This integration reduces external discrete-component count and simplifies embedded hub-board layouts. The upstream interface can operate as a High-Speed and Full-Speed hub or as a Full-Speed-only hub, providing configuration flexibility for different host links and legacy peripherals. Microchip specifies conformance with the SMBus 1.0 voltage, power, and timing characteristics for slave-only devices except where Section 4.3 specifies otherwise. This makes the controller relevant to managed USB connectivity designs that use SMBus sideband signaling. Its two downstream ports are intended for embedded docking stations, compact equipment, industrial panels, and other USB expansion systems where external discrete hub electronics would add complexity. Typical applications include USB-to-USB port expansion, embedded test and measurement equipment, industrial control panels, media appliances, and compact host systems. The 4 x 4 mm QFN package supports space-constrained designs, but exposed-pad layout and thermal management must follow the manufacturer's recommended land pattern. When designing with the USB2422T/MJ, preserve the D+ and D- geometry, provide the required USB connection and bypass components, and use the package's exposed thermal pad as a low-impedance ground and heat-spreading path. Verify upstream and downstream operating-mode configuration, suspend behavior, and over-current handling in the complete system rather than assuming standard desktop-hub behavior. This page consolidates the verified manufacturer and distributor information, explains the USB2422's integration benefits, identifies practical design constraints, and separates confirmed drop-in alternatives from candidates that require footprint verification before substitution.
USB2502-AEY - 2-Port USB 2.0 Hub Controller | SMSC
The SMSC USB2502-AEY is a 2-port USB 2.0 hub controller that connects one upstream host port to two downstream-facing USB ports. The verified product material identifies support for Low-Speed operation at 1.5 Mb/s and Full-Speed operation at 12 Mb/s; when attached to a High-Speed host, both downstream ports can also support High-Speed operation at 480 Mb/s. It is available in a QFN package. A USB hub controller is an interface semiconductor within the broader USB interface-controller hierarchy. Its function is to manage traffic from one USB host connection across multiple downstream ports while supporting the speed modes permitted by USB 2.0. Configuration can be handled through strapping options, an external EEPROM, or a microcontroller interface; with a microcontroller, the hub operates as an SMBus slave device. The principal engineering benefits are its two-port integration, upstream Full-Speed or High-Speed attachment, and configurable setup. Downstream devices may operate at Low-Speed, Full-Speed, or High-Speed when the hub is attached to a High-Speed host. This allows one controller to serve keyboards, storage, communications adapters, and other USB peripherals without requiring separate upstream controllers. Technical implementation requires careful treatment of USB signal integrity, power distribution, grounding, and enumeration. The controller coordinates device attachment and port behavior, but the final system must still meet USB 2.0 layout, capacitance, and power requirements. Exact electrical limits, pin assignments, clock requirements, and package dimensions must be taken from the Microchip manufacturer datasheet rather than inferred from marketplace listings. Typical uses include compact USB hubs, embedded host systems, docking equipment, peripheral expanders, and industrial adapters. In these systems, USB2502-AEY provides the multi-port coordination logic while external power switches, connectors, crystal or clock circuitry, and supporting passives implement the physical USB interface. Exact bill-of-material requirements should be confirmed against the datasheet reference implementation. For USB hub layouts, keep high-speed traces short and controlled, provide continuous return paths, place required decoupling close to the device, and validate differential impedance and connector placement in the assembled board. The available data does not state the package pin count, operating-temperature range, voltage limits, or full ordering-code characteristics, so those values must not be guessed.
USB2502-AEZG - 2-Port USB 2.0 Hub Controller | Microchip
Microchip Technology USB2502-AEZG is a 2-port USB 2.0 hub controller supporting low-speed operation at 1.5 Mb/s, full-speed operation at 12 Mb/s, and high-speed operation at 480 Mb/s when connected to a high-speed host. The device is available in a 36-pin QFN with exposed pad package measuring 6 x 6 mm. A USB hub controller is an interface semiconductor that expands one upstream USB connection into multiple downstream ports. It belongs to the USB interface controller family within the broader hierarchy of interface ICs, USB controllers, semiconductors, and embedded connectivity solutions. The USB2502 manages traffic between an upstream host and two downstream-facing ports while supporting devices that negotiate low-, full-, or high-speed operation. According to the Microchip USB2502 product page, the controller is fully compliant with the USB 2.0 Specification. The principal feature is integrated two-port USB 2.0 support in one package. Each downstream-facing port can accommodate a USB 2.0 device operating at 1.5 Mb/s, 12 Mb/s, or 480 Mb/s. This mixed-speed capability makes the controller suitable for systems that must connect peripherals with different bandwidth requirements. The verified manufacturer and distributor descriptions also identify full power management with ganged power control, helping coordinate downstream-port power behavior in bus-powered or self-powered designs. The USB2502-AEZG is supplied as a 36-QFN-EP package identified by DigiKey as 6 x 6 mm. Its package includes an exposed pad, making careful thermal via and copper-pour design important. The operating details visible in the supplied sources include a 3 V to 3.6 V supply range and USB interface functionality, while several electrical, timing, current, and environmental limits remain unavailable in the provided extraction and are therefore identified as data needed rather than estimated. Typical applications include compact USB hubs, docking stations, industrial USB expansion panels, peripheral connection panels, embedded host systems, and test equipment requiring two downstream USB 2.0 ports. The controller can also bridge high-speed hosts to lower-speed USB devices because each downstream port supports the full USB 2.0 speed set. Designers should still validate hub power budget, enumeration behavior, signal routing, and device-specific host compatibility before production release. For implementation, follow the manufacturer datasheet for decoupling, upstream and downstream differential-pair routing, crystal or clock requirements, power-gating connections, and exposed-pad thermal management. USB differential pairs should be routed as controlled-impedance, tightly coupled traces over a continuous reference plane, with minimal stubs and avoidance of right-angle transitions. The verified datasheet title identifies the document as DS000002248A, and the exposed pad should be connected according to its land pattern and assembly guidance rather than inferred from distributor package descriptions. This product page consolidates verified manufacturer and distributor information, exact source prices, package details, speed support, and practical engineering guidance. It also separates verified USB 2.0 capabilities from unverified parameters so procurement and design decisions can be based on traceable evidence.
USB2502-HD - 2-Port USB 2.0 Hub Controller | Microchip
The Microchip USB2502-HD is a two-port USB 2.0 hub controller that complies with the Universal Serial Bus Specification Revision 2.0 and operates as a full-speed hub or a full-/high-speed hub. Its two enabled downstream ports support low-speed devices at 1.5 Mb/s, full-speed devices at 12 Mb/s, and high-speed devices at 480 Mb/s when operated with a high-speed host. It is packaged as an integrated circuit, but the verified sources do not specify the exact package variant or dimensions. A USB hub controller is an interface semiconductor that expands one host USB connection into multiple downstream ports. It belongs to the USB interface controller hierarchy, alongside transceivers, host controllers, and device controllers. The hub manages enumeration, port power, connect and disconnect events, and transaction routing while allowing multiple USB peripherals to share one upstream host port. The principal feature of USB2502-HD is support for two downstream-facing ports and USB 2.0 operation. Low-speed, full-speed, and high-speed device support provides compatibility with keyboards, mice, storage devices, printers, and other USB peripherals. The controller can attach to a full-speed host or a higher-speed host, with downstream high-speed operation available when the hub is connected in the required high-speed configuration. Technically, USB2502-HD integrates the hub-control function into a dedicated interface IC rather than requiring a general-purpose processor. According to the Microchip USB2502 datasheet, the device is fully compliant with the Universal Serial Bus Specification Revision 2.0 dated April 27, 2000, including the cited errata. The available verified data does not state operating voltage, clock frequency, transceiver current, temperature range, pin count, or package dimensions. Typical uses include USB expansion in embedded systems, industrial control equipment, test instruments, printers, storage enclosures, and computer peripherals. The two-port architecture is useful when one host port must connect to two accessories while retaining support for both legacy and high-speed USB devices. Existing board revisions should be checked against the manufacturer package drawings before layout reuse or substitution. The most important design consideration is that a hub is only one part of the USB channel design. Upstream and downstream routing, connector placement, power-supply capacity, decoupling, ground continuity, and USB signal-integrity layout can determine whether advertised 480 Mb/s operation is reliable. Use the complete Microchip datasheet and its reference circuit for component values, layout geometry, and validation requirements. This product page consolidates the verified USB2502-HD commercial information, USB speed capabilities, official datasheet link, and sourcing details. It does not invent unavailable electrical or package specifications, and it distinguishes verified USB behavior from values that still require datasheet confirmation.
USB2502-HT - 2-Port USB 2.0 Hub Controller | Microchip
The Microchip Technology USB2502-HT is a two-port USB 2.0 hub controller supporting low-speed, full-speed, and high-speed USB devices in a 48-pin TQFP package. According to Microchip's USB2502 data sheet, its two downstream-facing ports can operate at 1.5 Mb/s, 12 Mb/s, or 480 Mb/s when connected to a high-speed host. The controller is designed for systems that need to expand one USB host connection into two downstream USB ports while maintaining USB 2.0 specification compliance. A USB hub controller is an interface integrated circuit that manages traffic between an upstream host and multiple downstream ports. In the USB hierarchy, it belongs to the USB interface-controller class, the broader interface-IC category, and ultimately the semiconductor device hierarchy. The USB2502 is intended for computers, peripherals, embedded systems, industrial equipment, and other USB 2.0 host platforms that require downstream-port expansion. Key verified features include two downstream-facing USB ports, USB 2.0 specification compliance, operation with a high-speed host, and support for low-, full-, and high-speed devices. The Microchip data-sheet result identifies the device as a fully specification-compliant USB 2.0 2-port hub and states compliance with Universal Serial Bus Specification Revision 2.0 dated April 27, 2000, including the listed 12/7/2000 and 5/28/2002 errata. The verified distributor listing identifies the physical part as a 48-TQFP USB interface IC. The controller separates upstream host traffic from the two downstream links, allowing peripheral devices such as keyboards, storage devices, network adapters, and human-interface devices to share one USB host port. System designers must provide the required USB transceiver, clock, decoupling, connectivity, and external passives described by the manufacturer data sheet. The controller itself is not a power-management IC and has no SOA data in the supplied sources. Typical uses include two-port desktop hubs, embedded USB expansion, peripheral connection panels, test equipment, and industrial USB interfaces. For a new design, validate the host controller, connector overmolding, cable lengths, enumeration behavior, power budgeting, and all USB electrical and timing requirements. The supplied evidence identifies the USB2502 family, but does not provide a complete pin-by-pin pinout or every operating limit, so those details remain to be verified from the manufacturer documentation. This product page consolidates the verified manufacturer description, distributor package information, source links, and engineering-use guidance for USB2502-HT selection. It intentionally distinguishes verified facts from missing electrical details instead of estimating unspecified values.
USB2503-HZE - USB 2.0 3-Port Hub Controller | Microchip
The Microchip USB2503-HZE is a USB 2.0 three-port hub controller packaged in a 48-QFN (7x7 mm) package. According to the verified manufacturer material, it is fully compliant with the USB 2.0 Specification, does not require firmware development, and supports low-speed, full-speed, and high-speed downstream devices when attached to a compatible host. Its principal role is to add three downstream USB ports while presenting one upstream connection to the host system. A USB hub controller is an interface integrated circuit that manages traffic between one upstream USB connection and multiple downstream ports. It belongs to the USB interface-controller family and the broader semiconductor and connectivity hierarchy. By handling USB enumeration, port attach and detach events, and downstream power-management coordination, the controller reduces the amount of host software and external glue logic required in a USB hub design. The verified product information identifies the USB2503 as a three-port hub controller compliant with USB 2.0. The manufacturer description states that the controller does not require firmware development, simplifying implementation compared with solutions that need device-specific firmware or a substantial software stack. Downstream ports can operate at 1.5 Mb/s low speed and at the other USB speed modes supported by the USB 2.0 specification when connected to an appropriate high-speed host. The HZE suffix identifies the ordered package variant associated with the supplied datasheet and distributor records. The device is offered in a 48-QFN (7x7 mm) surface-mount package, making it suitable for compact USB hub equipment where the connector footprint and board area are constrained. The package requires careful placement of power, USB data, configuration, clock, and exposed-pad connections according to the manufacturer pinout and layout guidance. Typical applications include USB hubs, docking stations, desktop and laptop peripherals, embedded USB expansion systems, industrial equipment, test and measurement products, and host systems requiring additional USB connectivity. The controller can also support designs that need automatic connection to a USB host without developing a dedicated USB hub firmware image. For implementation, confirm the exact USB operating modes, electrical limits, regulator requirements, crystal or clock configuration, port-power requirements, and exposed-pad layout against the USB2503/USB2503A manufacturer datasheet. When comparing a replacement, verify that the candidate uses the same 48-QFN footprint, pin functions, voltage requirements, USB electrical behavior, and intended upstream/downstream configuration rather than relying only on the apparent USB 2.0 hub function. This page consolidates the verified USB2503-HZE product description, distributor references, datasheet links, package information, pricing references, and engineering selection guidance. It is intended to help designers identify whether the controller fits a USB hub design and to locate the manufacturer documentation needed for a final, board-specific engineering review.