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USB20H04-JT-E6 - 4-Port USB 2.0 Hub Controller | Microchip
The Microchip Technology USB20H04-JT-E6 is a 4-port USB 2.0 hub controller with I2C, SMBus, serial, and USB interfaces, supplied in a 64-pin TQFP package measuring 10 mm by 10 mm. It is designed for embedded systems that need to consolidate multiple USB peripheral connections behind one host-facing USB interface. A USB hub controller is an interface integrated circuit that manages traffic between one USB host connection and multiple downstream USB ports. Within the interface IC hierarchy, it connects USB connectivity and system buses such as I2C and SMBus. Its four-port architecture is appropriate for peripherals, embedded computers, industrial equipment, and compact USB expansion systems. The device provides USB 2.0 connectivity for four downstream ports and exposes I2C, SMBus, and serial interfaces for configuration or system management. The 64-pin TQFP package provides the external connections required for downstream-port routing, upstream USB routing, power management, clocking, and control functions. The USB20H04-JT-E6 suffix identifies a specific ordering configuration associated with the USB20H04-JT device family. The controller is intended for systems in which one embedded host must connect several USB peripherals. Four downstream ports reduce the need for separate external hub hardware while preserving the common USB 2.0 device model. I2C and SMBus connectivity can support control of attached functions, although the final implementation must follow the pin-description table and reference design in the manufacturer documentation. Typical uses include industrial HMI panels, USB data-acquisition equipment, printers, service interfaces, external storage, and embedded test systems. The USB20H04-JT-E6 is particularly useful when a baseboard needs more than one USB peripheral connection while conserving space in a high-pin-count surface-mount design. For implementation, use the manufacturer's USB20H04 reference material to define upstream and downstream routing, power distribution, termination, and decoupling. Review the application note covering migration to USB2504 before changing board layouts because internal-regulator power-pin definitions differ even when PCB compatibility can be accommodated. This page organizes the product identity, verified technical facts, purchasing path, alternatives, application guidance, and engineering considerations into a practical resource for evaluating the USB20H04-JT-E6 in embedded USB hub designs.
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.
USB2224-NE-04 USB 2.0 Flash Media Controller | SMSC
The SMSC USB2224-NE-04 is a USB 2.0 bulk-only mass-storage peripheral controller designed to interface CompactFlash, SmartMedia, XD, Memory Stick, Memory Stick DUO, Memory Stick Pro, Secure Digital, and MultiMediaCard flash-memory devices. It is a bus-powered USB storage controller designed for systems requiring a dedicated USB-to-flash-media interface. A USB mass-storage class peripheral controller is an interface integrated circuit that connects a host computer to removable or embedded flash storage. It handles USB communication, mass-storage commands, media interfacing, and data transfer while allowing standard USB hosts to recognize supported media as removable storage. Within the hierarchy, USB2224-NE-04 is a USB interface controller, storage interface IC, and logic IC. The controller supports USB 2.0 operation and eight named flash-media formats: CompactFlash including CF Ultra I and II, SmartMedia, XD, Memory Stick, Memory Stick DUO, Memory Stick Pro, Secure Digital, and MultiMediaCard. CompactFlash support in True IDE mode is an important implementation requirement for systems using that media family. These capabilities make the device suitable for card readers, portable storage, and legacy embedded-storage equipment. The USB2224 is a bus-powered mass-storage controller intended to support both CompactFlash and removable flash-memory interfaces. Bus-powered operation allows the device to obtain operating power from the USB connection, reducing the need for a separate local supply in suitable portable designs. Its architecture is organized around USB device control, mass-storage command handling, and flash-media interfacing rather than general-purpose host processing. Typical applications include USB CompactFlash readers, multi-format memory-card readers, portable media players, industrial data-collection terminals, and legacy computer peripherals. Product development must verify the electrical requirements of every media socket and the host compatibility of the selected flash-memory standard. USB cable length, inrush current, media insertion behavior, and operating-system support also require system-level validation. Design the USB interface and media connectors according to the manufacturer pin-description and application schematics. Preserve the required USB decoupling and routing topology, account for bus-powered current limits, and provide protection appropriate to exposed external connectors. Validate signal integrity and enumeration with the exact media cards intended for production because electrical behavior can vary across card formats and capacity generations. This page consolidates the controller function, supported-media coverage, sourcing guidance, and design cautions into a concise engineering reference. For an exact pin-compatible replacement, verify package dimensions, exposed-pad requirements, pin names, USB electrical ratings, and media-interface assignments against the original design before approving any substitution.
USB2224-NE-05 USB 2.0 Flash Media Controller | SMSC
The SMSC USB2224-NE-05 is a bus-powered USB 2.0 flash media controller integrated circuit associated with the buffers, drivers, receivers, and transceivers product category. Its primary identified function is support for USB 2.0 flash media applications, making it relevant to portable storage, card-reader, embedded storage, and USB peripheral designs that require an interface between a USB host and flash-memory media. USB flash media controllers are interface ICs within the broader USB interface and system-controller hierarchy. They coordinate USB data transfer, media access, and command handling while allowing a storage module or reader to appear as a conventional USB storage device. The bus-powered description indicates that the controller is intended for designs operating from USB power, where system power consumption, enumeration behavior, and the ability to operate across multiple host ports are important design considerations. The available product identification confirms the USB 2.0 flash media function and the SMSC origin of the USB2224-NE-05. Detailed electrical ratings, internal controller architecture, supported media formats, operating-temperature limits, and package dimensions require confirmation from the manufacturer datasheet. Those parameters should be checked before selecting the device for a new design or preparing a PCB footprint. Typical design roles include USB card readers, portable flash-memory adapters, embedded data-logging systems, industrial storage peripherals, and USB-connected media-access equipment. In each case, the controller must be paired with the appropriate flash-memory device or media interface, power-supply network, USB data-path routing, and required external components shown by the manufacturer. The most important design step is to verify the exact USB signaling requirements of the target port and the media architecture. USB 2.0 operation requires careful differential-pair routing, controlled impedance, adequate ESD protection, and connector placement that minimizes noise coupling. Power should be designed for the bus-powered operating mode, including the device-state transitions expected during enumeration and media access. For replacement work, engineers should compare the exact package, pin assignment, USB electrical characteristics, supported media, power requirements, and firmware or driver expectations. A part that shares the product description but differs in pinout or media support is not automatically a drop-in replacement. This page organizes the confirmed part identity, sourcing information, application guidance, and comparison framework for engineering 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-09 - USB 2.0 Flash Media Controller | Microchip
The Microchip Technology USB2227-NU-09 is a fourth-generation USB 2.0 flash card media controller for USB Host Controller-to-flash-media interfaces, packaged in a 128-pin VTQFP measuring 14 mm by 14 mm. The device is designed as a dedicated interface solution between a USB host and supported flash-memory media, integrating the USB-facing controller and media-side interface functions into one package. A USB flash media controller is a specialized interface IC within the broader hierarchy of interface integrated circuits, USB controllers, and storage interface semiconductors. It manages command transfer and data movement between a USB host and flash-media hardware. Unlike a general-purpose USB host controller, the USB2227 is optimized for the protocol and electrical requirements of supported removable or embedded flash formats, reducing the host processor burden associated with media access. The principal identified features are USB 2.0 connectivity, fourth-generation flash-card media-controller functionality, on-chip firmware capable of reading and writing High Speed Memory Stick and MS Pro media, and a compact 128-VTQFP package. Microchip describes USB2227 as providing a single-chip solution for supported USB flash-media card interfaces. The USB2227 is functionally identified as identical to USB2228 except that USB2227 does not support the xD-Picture Card format. The controller architecture places the USB host interface, flash-media interface, and supporting control functions within one dedicated device. This integration is useful when a host system needs standardized removable-media access without implementing the complete media protocol in host firmware. On-chip firmware handles the supported media operations, while the surrounding system must still provide correct bus connections, clocking, power sequencing, storage media, and host-side software support. Typical implementations include compact personal-computer and embedded systems using USB flash-memory cards, industrial data-collection equipment that accepts removable media, and portable-device designs that need high-speed USB storage connectivity. The controller can also be used in legacy or specialty equipment where an established flash-card format must remain supported while USB 2.0 provides the connection to a host controller. Design planning should begin with the manufacturer data sheet for the exact package, signal assignments, clock requirements, media-support matrix, electrical limits, and reference implementation. Because the 128-VTQFP footprint is pin dense and supports several external media interfaces, PCB routing, controlled-impedance USB traces, stable reference clocks, decoupling, and grounding require careful implementation. Verify the selected flash-media format and its electrical requirements before finalizing the schematic. This product record consolidates the verified USB 2.0 role, fourth-generation controller positioning, 128-VTQFP package information, supported-media statement, and family relationship between USB2227 and USB2228. It also organizes same-family drop-in candidates, application guidance, design cautions, and sourcing routes so engineers can assess legacy-controller replacement decisions against footprint and functional requirements.
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-05-E2 - USB 2.0 Flash Media Controller | SMSC
The SMSC Corporation USB2228-NU-05-E2 is a fourth-generation USB 2.0 flash media controller with integrated card power FETs, supplied in a 128-pin VTQFP package measuring 14 mm by 14 mm. It supports a USB 2.0 parallel interface and interfaces removable flash media through a USB host controller. The controller family supports SmartMedia, xD Picture Card, Memory Stick, High Speed Memory Stick, and Memory Stick PRO formats. A flash media controller is an interface IC that bridges a USB host and one or more flash-card standards. It belongs to the controller and interface-controller hierarchy within integrated circuits, while the integrated card power FETs help manage the electrical load presented by supported media. The USB2228 is intended for portable-device, reader, and embedded systems requiring compatibility with several legacy flash-card formats. The fourth-generation architecture combines USB device connectivity, flash-media interface logic, and card power control in one package. Its 128-VTQFP construction provides numerous external connections for card data lines, control signals, media detection, and power management. Because the controller coordinates multiple card formats, PCB layout should keep sensitive USB and media signal paths short and route switching or power-transient paths away from data inputs. Typical uses include USB flash-card readers, multifunction peripherals, portable media appliances, digital still-camera accessories, and embedded systems that must read legacy xD, SmartMedia, or Memory Stick media. Systems operating from a USB bus must account for the controller's bus-powered operating limits and the combined current required by the supported card interface. Design work should begin with the USB2228/USB2227 manufacturer datasheet, particularly its pin-description table, supported operating modes, clock requirements, and reference application circuit. Validate connector, media-detection, card-power, and firmware compatibility for the exact card population used in the product rather than relying only on the family description. This product page combines the verified USB 2.0 interface, flash-media controller, integrated card power FET, and 128-VTQFP package information with application guidance, package comparisons, and qualified same-footprint alternatives. It also distinguishes directly documented device characteristics from parameters that require confirmation before schematic release.
USB2228-NU-09 USB 2.0 Flash Media Controller | Microchip
Microchip Technology USB2228-NU-09 is a specialized USB 2.0 flash media controller with a 3.3 V supply, 128-pin VTQFP package, and a 14 mm by 14 mm body size. It provides the interface between a USB host controller and flash memory cards while also supporting the xD-Picture Card format. The device is designed for embedded systems that require a dedicated USB-to-flash-media bridge. A USB flash media controller is a specialized interface IC within the USB interface and controller hierarchy. Its purpose is to translate commands and data between a USB host and removable flash-memory media, allowing host software to access supported cards through a standardized peripheral interface. The USB2228 belongs to Microchip's fourth-generation USB 2.0 flash-card media-controller family and combines device interfacing, media support, and on-chip controller functions in one surface-mount package. The controller operates at a 3.3 V supply and supports USB 2.0. Its 128-pin VTQFP package provides the required external connections for flash media, USB data, control, clocking, and supporting circuitry. The 14 mm by 14 mm package is designed for surface-mount assembly on embedded boards. Microchip identifies the USB2228 as supporting xD-Picture Card format for licensees of that format, making it relevant to specialized portable-media equipment. The USB2228 family is intended to connect a USB host controller to flash-media cards rather than replace the host controller itself. This separation allows a system processor to manage USB traffic while the USB2228 handles the electrical and protocol-facing interface to compatible flash media. Its specialized role makes it suitable for legacy and niche embedded media systems where supported card formats and established firmware are important. Typical applications include dedicated media readers, industrial data-collection equipment, portable diagnostic systems, and specialized embedded appliances that must exchange files with flash memory cards. Consumer peripheral, industrial automation, and automotive equipment can also use this controller when their system architecture matches the supported media and electrical requirements. Firmware and host-driver compatibility should be validated before production deployment. The most important design step is to follow the manufacturer datasheet for pin assignment, supply sequencing, clock requirements, media interfaces, and external component selection. Because this is a 128-pin legacy-class controller, PCB layout, impedance control, and firmware support can be as important as the nominal USB 2.0 capability. Confirm that the required flash-media formats and host software are supported by the exact device variant. This product record combines the manufacturer interface description, package and supply information, source documentation, and engineering guidance for USB2228-NU-09. It also distinguishes the known functions of the USB2228 from the broader class of USB host controllers, helping designers determine whether a dedicated flash-media bridge is required before committing a board layout and firmware stack.
USB2228-NU-10 USB 2.0 Card Controller | Microchip
The Microchip Technology USB2228-NU-10 is a specialized USB 2.0 flash-media card controller with a 128-pin VTQFP package measuring 14 x 14 mm. It interfaces a USB host controller with supported flash-memory cards, including xD-Picture Card media, and is positioned as a fourth-generation USB 2.0 flash card media controller for embedded USB storage designs. A USB flash-media controller is a specialized interface IC that bridges a USB host and removable or embedded flash storage. Within the product hierarchy, it belongs to the USB interface-controller class, Interface ICs, and the broader integrated-circuit and semiconductor categories. Unlike a general-purpose USB device controller, the USB2228 is designed around flash-card media protocols and host-controller connectivity, simplifying the design of card readers, portable media devices, and USB storage adapters. The manufacturer identifies USB 2.0 operation, flash-media support, and xD-Picture Card format support as defining features of the USB2228 family. Its 128-pin VTQFP package provides a high pin count for media control, data signaling, and supporting interface functions. The -10 ordering code identifies the specific Microchip commercial configuration associated with USB2228-NU-10, while the broader USB2228 family remains the relevant reference for device-level electrical and pin-assignment information. The USB2228 occupies a specialized position between a USB host controller and flash-card media rather than serving as an endpoint controller for ordinary USB peripherals. This architecture makes it relevant to systems requiring dedicated card-format handling and flash-media connectivity. The exact supported card list, electrical limits, clock requirements, operating-temperature range, and transceiver details should be confirmed in the USB2228 manufacturer documentation before a new PCB is released. Typical uses include USB card-reader equipment, embedded flash-storage interfaces, portable media accessories, and host-controlled data-transfer products. System designers may pair the controller with a USB host interface, flash-card connector, clock source, supporting logic, and power regulation. Its specialized role differs from a conventional USB-to-UART bridge or general-purpose USB hub, making protocol and media support more important than generic USB connectivity. PCB planning must follow the manufacturer's pin-description table and reference circuitry. Pay particular attention to the 14 x 14 mm VTQFP footprint, exposed-pad requirements where applicable, clock routing, input/output impedance, USB data-pair routing, and flash-media connections. Confirm package drawing, pin numbering, and production programming requirements before committing the component to a layout. This product page organizes the manufacturer feature description, package information, application guidance, sourcing answers, and substitution constraints for USB2228-NU-10. It also distinguishes documented USB2228 functionality from assumptions that require confirmation in the manufacturer datasheet, helping engineers evaluate the controller before PCB layout, sourcing, or production release.
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.
USB2250I-NU-06 - USB 2.0 Flash Media Controller | Microchip
The Microchip Technology USB2250I-NU-06 is an industrial-grade USB 2.0 flash media controller for reading and writing more than 24 flash-media formats, with sustained transfer rates exceeding 35 MB/s when the media and host support that performance. The device is housed in a 128-pin VTQFP package measuring 14 x 14 mm and interfaces between a USB host and removable flash-media storage. A USB flash media controller is an interface IC that translates USB mass-storage commands into the electrical signaling required by CompactFlash, SmartMedia, xD-Picture Card, Memory Stick, Secure Digital, and MultiMediaCard devices. Within the product hierarchy, this controller belongs to the USB interface controller family, the larger interface IC category, and ultimately the integrated-circuit and semiconductor classifications used for embedded data-transfer systems. The controller supports more than 24 popular flash-media formats and is designed for applications using single or combination media sockets. Multiple simultaneous card insertions can be handled, while the number of logical units and their assignment to card types remain flexible. These capabilities make the device useful for industrial media readers, portable diagnostic equipment, data acquisition systems, and specialized card-access appliances. The USB 2.0 Hi-Speed interface supports an average sustained transfer rate exceeding 35 MB/s when both the attached media and host controller can sustain the required throughput. Actual performance depends on the media device, electrical implementation, host software, and workload. The integrated design reduces the need for a separate USB-to-flash bridge while providing a common interface across numerous legacy and removable flash-memory formats. Typical implementations include CompactFlash readers, multi-slot memory-card stations, industrial data loggers, test and measurement equipment, and embedded systems that must exchange files through removable media. The industrial-grade positioning is relevant where equipment must tolerate extended operating conditions beyond typical consumer environments, although design engineers should verify the exact temperature limits and qualification requirements against the manufacturer datasheet. PCB implementation requires careful attention to USB signal routing, flash-media interface layout, power integrity, and exposed-pad thermal management. Place the USB transceiver path away from switching nodes and analog-sensitive circuitry, route differential USB traces as a matched pair, and provide the decoupling network specified by the manufacturer near the appropriate supply pins. Use the package land pattern and pin-description tables in the manufacturer datasheet when assigning tracks and assembling the board. This product page combines manufacturer-family information, verified distributor identification, package details, application analysis, design guidance, and a parameter-by-parameter comparison of supported same-package family alternatives. It is designed to help engineers confirm controller fit, package compatibility, media coverage, thermal planning, and sourcing requirements before committing a USB flash-media interface to a PCB layout.
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.
USB2251I-NU-06 - USB 2.0 Flash Media Controller | Microchip
The Microchip Technology USB2251I-NU-06 is a specialized USB 2.0 flash media card controller designed to interface supported flash-memory formats with a USB host controller. It supports Hi-Speed USB 2.0 operation and is packaged as a 128-pin VTQFP measuring 14 x 14 mm. The controller is intended for embedded USB mass-storage equipment requiring a dedicated interface to flash media rather than a general-purpose storage controller. A flash media controller is an interface IC within the broader hierarchy of USB interface controllers, storage controllers, and semiconductor components. It manages the electrical and protocol-level connection between a USB host and a removable or embedded flash-memory card. The USB2251 family targets readers and storage appliances using SmartMedia/xD-Picture Card, Memory Stick, MultiMediaCard, Secure Digital, Compact Flash, and related flash-media formats. Key features include USB 2.0 Hi-Speed operation, support for multiple legacy flash-card standards, and a compact 128-pin VTQFP package. The 14 x 14 mm package provides a high pin count for card detection, power-control, data-bus, command, and configuration connections. This makes USB2251I-NU-06 suitable for multifunction readers, portable storage products, industrial data terminals, and embedded systems that must bridge a USB host to physically distinct flash-card interfaces. Technically, the device belongs to the USB225x family of flash media card controllers. Its architecture separates USB host connectivity from the media-card interface, allowing firmware to identify inserted media and expose supported cards through a USB mass-storage function. The product is identified as the industrial-temperature version of USB2251, although exact electrical limits should be confirmed in the manufacturer datasheet before final qualification. Typical applications include USB flash-card readers, multifunction office devices, portable media players, data-acquisition terminals, and industrial control panels. In each case, the controller reduces the need for a host processor to implement card-specific electrical protocols. System designers must still provide correct card connectors, signal conditioning, storage media support, firmware, and validated host-driver behavior. A primary design consideration is the relatively complex pin and power-management architecture. Route high-speed USB signals as a controlled impedance path, place decoupling close to the supply pins, and follow the pin-description and configuration tables in the manufacturer datasheet. Media-format support must also be verified against the target product requirements because legacy card interfaces are not interchangeable at the connector or firmware level. This product page combines the exact Microchip ordering information, verified package and interface details, supported flash-media functions, drop-in family options, and practical integration guidance. It is intended to help engineers determine whether the USB2251I-NU-06 matches their USB 2.0 card-reader architecture before schematic capture and PCB layout begin.
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.
USB2412-DZK-TR - 2-Port USB 2.0 Hub Controller | Microchip (Tape & Reel)
The Microchip USB2412-DZK-TR 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-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.