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CY7C65620-56LFXC - USB 2.0 Low-Power 2-Port Hub Controller | Infineon Technologies
The Infineon Technologies CY7C65620-56LFXC is a low-power USB 2.0 hub controller in the EZ-USB HX2LP family, designed for systems that require an integrated two-port USB hub controller with low-power operation and flexible port configuration. It is identified by the verified distributor data as a USB 2.0 USB interface controller in a 56-QFN (8 x 8 mm) package. The controller is suitable for embedded USB host, docking, docking-station, printer, storage, and industrial peripheral designs where USB connectivity and compact board area are priorities. A USB hub controller is an interface IC that manages USB traffic between one upstream USB port and multiple downstream ports. In the USB hierarchy, the CY7C65620 belongs to the interface-controller class and provides the device-side logic needed to organize downstream USB connections. Its low-power design focus helps systems that must balance USB functionality against battery and thermal budgets, while the integrated 24 MHz external crystal interface with an integrated PLL provides a defined clock source for USB operation. Verified product information identifies the EZ-USB HX2LP family with integrated upstream and downstream termination resistors, integrated port status indicator control, and configuration through an external SPI EEPROM. The controller supports in-system EEPROM programming, including configurable vendor ID and product identification information. These features can reduce board-level component count and provide a path to field-configurable USB identity without changing the hub-controller IC. The CY7C65620-56LFXC is targeted at USB 2.0 hub implementations where a compact 56-QFN package and low-power controller are useful. Compared with a discrete host-side hub design, an integrated controller centralizes USB protocol handling, port status management, and configuration support. Design work should still validate the controller's electrical timing, crystal requirements, termination configuration, EEPROM programming procedure, and thermal performance against the latest manufacturer datasheet before production release. The available distributor records identify both Infineon Technologies and Rochester Electronics listings for the same MPN, while Mouser and Octopart provide additional sourcing visibility. Pricing, lead time, and lifecycle status are not consistently exposed in the supplied records, so those commercial fields require confirmation from an authorized distributor or a current XAIPART quotation. This page combines the verified manufacturer-related and distributor data with engineering-oriented guidance on USB hub implementation, EEPROM configuration, clocking, port-status control, and supply-chain risk. It is intended to help engineers evaluate whether the CY7C65620-56LFXC is suitable for a compact USB 2.0 hub design, while clearly identifying parameters that still require datasheet or commercial confirmation.
CY7C65620-56LTXA - USB 2.0 Hub Controller | Infineon
Infineon Technologies CY7C65620-56LTXA is a low-power USB 2.0 hub controller with a 24 MHz maximum clock frequency, presented in a 56-QFN 8 x 8 mm package. The device is associated with a two-port, single-TT hub architecture that can be configured through general-purpose I/O, LED indicators, and optional EEPROM support. Its no-lead package supports compact integration in external USB hubs, docking stations, computer peripherals, and embedded USB-routing equipment. A USB hub controller is a semiconductor that manages traffic between a USB host and one or more downstream USB devices. Within the USB interface hierarchy, it sits below the host controller and above connected peripherals, adding transaction routing, device enumeration support, port-status monitoring, and configurable hub functions. USB 2.0 hub controllers therefore serve as interface ICs within broader USB connectivity systems. The verified listings identify the CY7C65620-56LTXA as a USB 2.0 interface controller with a maximum clock frequency of 24 MHz. Related CY7C65620 ordering information describes a two-port single-TT hub with configurable GPIOs, LED indicator functions, and EEPROM capability. The package data identifies 56 terminals, a square no-lead form, package code HVQCCN, and an 8 x 8 mm body. The exact pin assignments are not reproduced here because the verified excerpt does not provide a complete manufacturer pin table. Typical implementation places the controller at the center of a USB hub PCB, with upstream USB connectivity linked to the host and downstream ports connected through protected USB data and power paths. Firmware must also support required USB hub behaviors, including enumeration, configuration, suspend and resume handling, and port-status reporting. The controller does not remove the need for compliant power distribution, ESD protection, controlled-impedance routing, and connector implementation. The CY7C65620 family is suitable for compact USB hubs, monitor or docking accessories, embedded USB routing products, and multiport peripherals that need a dedicated low-power hub controller. System designers should confirm voltage limits, temperature grade, crystal or clock requirements, transceiver configuration, and exposed-pad assembly details against the manufacturer datasheet before releasing a PCB. Layout should preserve short USB differential traces, continuous reference planes, and symmetrical branch geometry, while keeping noisy power converters and inductors away from high-speed data paths. Input, output, and bypass capacitors must follow the values and placement specified by the manufacturer reference design. Because only distributor excerpts were available during verification, the page does not guess pinout details, absolute maximum ratings, or unverified electrical limits. This page consolidates the verified distributor identity, package information, ordering variants, source links, and practical engineering context for CY7C65620-56LTXA. It also distinguishes documented same-family orderable variants from unsupported cross-brand replacements, helping engineers evaluate PCB reuse, sourcing, and design-in risk without treating functionally similar USB interface devices as pin-compatible substitutes.
CY7C65620-56LTXC - 2-Port USB 2.0 Hub Controller | Infineon
The Infineon Technologies CY7C65620-56LTXC is a two-port Single-TT USB 2.0 hub controller supporting high-speed operation at 480 Mbps and 3.3 V transceiver operation in a 56-QFN 8 x 8 mm package. The commercial C-grade device includes configurable GPIO resources, LED indication, and EEPROM support for configurable hub behavior. A USB hub controller is an interface integrated circuit that manages one upstream USB connection and multiple downstream ports. It belongs to the hierarchy of USB interface controller, interface IC, and integrated circuit. Rather than duplicating full host-controller logic in every peripheral, a hub controller centralizes port enumeration, power-management coordination, status signaling, and downstream traffic management across a USB 2.0 peripheral or host system. The CY7C65620 provides two downstream ports and a 480 Mbps high-speed data rate. Its 3.45 V operating capability aligns with 3.3 V USB transceiver implementations. GPIO configuration allows product-specific behavior, LED indicators can report port activity or status, and EEPROM support enables configuration information to be retained or supplied by the system designer. These features are useful when a product requires a compact two-port hub without using a larger external hub implementation. The controller belongs to the EZ-USBTM HX2LP family and is identified as a two-port Single-TT hub solution. The 56-QFN 8 x 8 mm package supports compact integration but requires careful exposed-pad thermal and layout management. The product is available in bulk packaging according to the manufacturer listing. Infineon markets the device with configuration, ordering, parameter, and datasheet information on its official component page. Typical applications include USB 2.0 peripheral hubs, embedded host systems, docking equipment, printer or storage interfaces, and industrial control panels that need more than one USB connection. In these systems, the controller can reduce the number of dedicated USB interface blocks while preserving high-speed signaling. Firmware and board validation remain essential because downstream-port behavior, enumeration, and indicator management must match the complete product architecture. Designers should place the USB differential pairs on a controlled-impedance PCB, keep the exposed pad and power connections compliant with the manufacturer layout guidance, and validate both full-speed and high-speed operation. Power budgeting, inrush behavior, cable faults, and LED-current limits should be checked before production release. The available public snippets confirm the core USB and package characteristics but do not expose every electrical limit, so the manufacturer datasheet remains the controlling design reference. This page consolidates verified manufacturer and distributor information, price context, package details, and design-oriented guidance. It also distinguishes confirmed drop-in candidates from unrelated USB interface devices, helping engineers evaluate replacement options without confusing functional similarity with true pin-to-pin compatibility.
CY7C65621-56LTXC - USB 2.0 2-Port Hub Controller | Infineon
The Infineon CY7C65621-56LTXC is a low-power USB 2.0 hub controller from the EZ-USB HX2LP Lite family, providing two downstream ports with single-TT bus-powered support in a 56-QFN (8x8 mm) package. It integrates USB 2.0 compliance, an upstream port, and two downstream ports on a single chip, replacing discrete hub designs with a compact surface-mount solution. A USB 2.0 hub controller is a class of interface IC that expands one upstream USB port into multiple downstream ports, handling transaction translation (TT), signal conditioning, and protocol compliance. The HX2LP Lite family belongs to Infineon's USB hub controller hierarchy, sitting between USB transceivers (physical layer only) and full USB host controllers (which add host-role processing). This positions the CY7C65621 as a self-contained USB 2.0 hub IC suitable for embedded systems without an internal root hub. Key features include USB 2.0 compliance at low-, full-, and high-speed (480 Mbps), integrated upstream and downstream transceivers, single-TTT transaction translation, bus-powered or self-powered operation, and per-port overcurrent detection. The 56-QFN package provides a low-profile footprint for space-constrained designs such as docking stations, monitors, and embedded motherboards. The CY7C65621 employs a serial interface engine plus a hub repeater architecture, offloading USB protocol overhead from the system processor. Per-port overcurrent sensing and ganged-power-switching reduce BOM cost, while internal pull-up/pull-down resistors simplify PCB layout by removing most external USB components. Typical applications include USB 2.0 hubs and docking stations, monitors with integrated USB ports, embedded motherboards, industrial USB expansion modules, and consumer peripherals such as printers. The wide operating voltage and low suspend current also make it suitable for battery-powered USB expansion accessories. When designing with this device, follow Infineon's reference schematic for USB impedance-controlled routing (90 ohm differential) and place the 24 MHz crystal within 5 mm of the XTALIN/XTALOUT pins. Decouple VBATT and VDD with 1uF ceramic capacitors placed within 2 mm of the respective pins. This page synthesizes distributor pricing, drop-in alternative listings, and PCB layout design notes not found in the manufacturer datasheet alone.
CY7C65621-56LTXCT - 4-Port USB 2.0 Hub Controller | Infineon
The Infineon CY7C65621-56LTXCT is a 4-port, USB 2.0 hub controller from the EZ-USB HX2LP Lite low-power family, supplied in a 56-pin QFN (8x8 mm) package with 0.90 mm height. It implements a USB 2.0 high-speed hub with integrated upstream and downstream termination resistors, integrated port status indicator control, and a 24 MHz external crystal with internal PLL. The device operates from a single 3.3 V supply and supports bus-powered and self-powered topologies. A USB hub controller is a protocol-aware bridge that expands one upstream USB port into multiple downstream ports while handling the USB 2.0 hub specification, including transaction translator (TT) logic, port power switching coordination, and over-current protection signaling. The HX2LP Lite family sits in the broader product hierarchy of USB interface IC -> interface IC -> integrated circuit, and is engineered specifically for low-power embedded hubs where standby current, BOM cost, and PCB area are critical. Key features include support for USB 2.0 high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) signaling, in-system EEPROM programming via SPI for vendor ID, product ID, and port customization, integrated upstream and downstream termination resistors that eliminate external components, and integrated LED status indicator drivers per port. The CY7C65621 variant provides four downstream ports, while the related CY7C65631 variant targets two-port designs. From an architectural perspective, the HX2LP Lite integrates the physical layer (PHY), serial interface engine (SIE), hub repeater, transaction translator, and power-management state machine into a single die. This integration reduces external component count compared to discrete hub designs, where multiple transceivers and a separate hub controller IC are required. According to the Cypress/Infineon datasheet, the integrated PLL derives all required USB clocks from a single 24 MHz crystal, eliminating the need for an external clock generator. Typical applications include USB port expansion on laptops, docking stations, monitors with built-in USB hubs, embedded industrial PCs, and consumer electronics such as set-top boxes and game consoles. The commercial temperature grade (0C to +70C) suits indoor commercial environments. When designing with this device, allocate 10 uF plus 0.1 uF ceramic bypass capacitors close to the 3.3 V supply pin, route the USB 2.0 differential pairs (D+/D-) with 90 ohm differential impedance, and ensure the upstream port's VBUS sensing resistor is selected per the USB 2.0 bus-power budget. The 56-QFN package requires thermal relief on the exposed pad connected to the ground plane. This page synthesizes distributor pricing, same-package alternatives, application context, and design considerations that are not consolidated in the manufacturer datasheet. Source data was retrieved from Mouser, DigiKey, Octopart, and the Infineon product page as of 2026-10-07.
CY7C65621-56LTXI USB 2.0 Hub Controller | Infineon
Infineon Technologies CY7C65621-56LTXI is a two-port USB 2.0 hub controller supporting Full Speed and High Speed operation in a 56-QFN package. The verified product information identifies a 3.3 V device, an integrated USB Serial Interface Engine for host communication, and support for a two-port single-TT bus-powered application. Its 56-pin QFN package measures 8 mm by 8 mm and includes an exposed pad. A USB hub controller is an interface integrated circuit that coordinates traffic between a USB host and multiple downstream peripherals. Within the hierarchy of USB interface controllers, hub controllers, interface ICs, and semiconductors, it provides device enumeration, downstream-port management, and shared host connectivity. The target part is therefore useful when one USB host connection must fan out to two USB devices without relying on a host-side software hub. The verified data highlights Full Speed and High Speed USB 2.0 operation, two downstream ports, a 3.3 V supply, and a single-TT bus-powered configuration. The Serial Interface Engine allows the controller to communicate with the USB host, while the QFN exposed-pad package supports compact surface-mount construction and board-level heat spreading. The I-grade ordering code is explicitly identified by the manufacturer for the two-port bus-powered application. The CY7C65621 family is intended for USB hubs and related interface equipment where deterministic downstream-port control is required. Compared with a four-port hub controller, the two-port architecture can fit installations that need exactly two ports and may simplify enclosure, cable, and power-budget considerations. Firmware, descriptor configuration, downstream transceiver characteristics, and detailed electrical limits should be checked in the manufacturer datasheet before board release. Typical installations include compact USB hubs, bus-powered accessories, embedded USB expansion equipment, and two-port docking products. The device can sit between a host controller and two downstream connectors, provided the board implements the required USB routing, decoupling, protection, and exposed-pad thermal construction. USB signal integrity is especially important because high-speed edges and connector launches can introduce reflections and loss. For a new design, use the manufacturer ordering information and datasheet to confirm pin assignments, supported operating modes, crystal or clock requirements, power sequencing, and transceiver layout. Treat the published 3.3 V value as the verified supply figure, but verify every electrical limit and application guideline in the official documentation. This page combines verified distributor facts, official product identification, application guidance, and replacement constraints rather than adding unsupported specifications.
CY7C65630-56LFXA - 4-Port USB 2.0 Hub | Infineon
The Infineon CY7C65630-56LFXA is a four-port, single-TT USB 2.0 hub controller with a 3.3 V supply, 56-pin QFN package, integrated USB termination resistors, configurable GPIO port-status indicators, and support for a 24 MHz external crystal with an integrated PLL. The device belongs to the EZ-USB HX2LP low-power USB hub controller family and targets USB connectivity designs requiring four downstream ports. A USB hub controller is an interface IC within the USB interface controller hierarchy. It manages communication between one upstream USB host connection and multiple downstream peripheral connections. Unlike a simple USB switch, a hub controller coordinates enumeration, port status, power distribution, signaling, and shared-bandwidth behavior. The CY7C65630-56LFXA therefore sits between a USB host or computer and attached USB peripherals in external hubs, docking equipment, and embedded USB connectivity products. Key features include four downstream USB ports, a single-TT architecture, 3.3 V operation, integrated upstream and downstream termination resistors, and integrated port-status indicator control. The controller uses an external 24 MHz crystal with an integrated PLL, while in-system EEPROM programming provides a route to configuration. The 56-pin QFN measures approximately 8 mm by 8 mm with a stated height of 0.90 mm, making it suitable for compact external hub assemblies. The HX2LP architecture is intended for low-power USB 2.0 hub implementations. Shared upstream bandwidth means connected devices compete for the host link's available data rate, so a four-port hub does not provide four independent upstream channels. Port behavior also depends on firmware, EEPROM configuration, crystal timing, and the quality of the USB power and signal layout. The integrated termination resistors can simplify impedance-matched USB routing, but developers still need to follow the manufacturer's reference layout and power-distribution guidance. Typical applications include four-port USB hubs, desktop and industrial docking stations, USB-to-multiport adapters, embedded USB expanders, and systems that need downstream port-status LEDs. A typical design connects the upstream port to a host, routes the four downstream differential pairs through controlled-impedance PCB traces, and uses the GPIO functions for activity or connection indicators. The supply network must remain stable across the attached-device load while minimizing switching noise and USB signal disturbance. A critical design consideration is the distinction between electrical compatibility and full board-level equivalence. A replacement must preserve the 56-pin footprint, pin functions, clock requirements, power architecture, EEPROM interface, and firmware expectations; matching only the port count and USB version is insufficient. Designers should also validate downstream-port power-switching components, USB data-routing topology, and enumeration behavior as a complete subsystem. This product data consolidates the verified distributor specifications, price reference, package information, family alternatives, and practical selection guidance. It highlights what can be confirmed from current sources and clearly identifies parameters that still require confirmation from the manufacturer datasheet before schematic release or PCB sign-off.
CY7C65630-56LTXA - USB 2.0 Hub Controller | Infineon
The Infineon Technologies CY7C65630-56LTXA is a USB 2.0 hub controller in a 56-pin QFN package measuring 8 mm by 8 mm. The device belongs to the USB interface controller category and provides the logic required to manage downstream USB connections in a multi-port hub design. Its package information identifies a square, no-lead surface-mount form factor with 56 terminals and an HVQCCN package code. A USB hub controller is a bus-interface integrated circuit that coordinates communication between one upstream USB host and multiple downstream ports. It sits within the broader hierarchy of interface controller, USB interface IC, USB hub controller, and semiconductor. Unlike a general-purpose microcontroller, the dedicated hub controller incorporates USB host and device interface functions specifically organized for hub topologies. Its exact port count, transfer rates, clocking requirements, and supported operating modes should be confirmed against the manufacturer datasheet before schematic capture. The CY7C65630-56LTXA is identified in distributor listings as a USB 2.0 USB Interface controller. The verified product listings place it in the Bus Controllers and Interface Controllers classes, supporting use in hubs, docking stations, card readers, embedded USB expansion systems, and industrial peripherals. The compact 8 mm by 8 mm QFN package is useful where connector density and board area constrain the design. Thermal and layout planning are especially important for this no-lead package. The exposed ground structure must be connected to a low-impedance ground plane, while supply and interface routing should follow the reference layout and decoupling guidance in the manufacturer documentation. Because the supplied data does not state the complete electrical limits, verify input voltage tolerance, maximum downstream-port current, operating temperature range, and signal timing before committing to a production layout. The CY7C65630-56LTXA is available from multiple authorized distributors, with DigiKey and Mouser listings present at the time of verification. Quote-based procurement can be appropriate when stock and lead time fluctuate. The family also includes related 56-QFN ordering variants, but suffix changes can indicate package construction or grade differences rather than unconditional functional interchangeability. This page consolidates distributor availability, package information, related same-family MPNs, and practical integration considerations. It also distinguishes verified facts from engineering values that still require confirmation from the official datasheet, preventing package-only substitutions from being presented as automatic drop-in replacements.
CY7C65630-56LTXC - 4-Port USB 2.0 Hub Controller | Infineon
The Infineon Technologies CY7C65630-56LTXC is a four-port, single-translator USB 2.0 hub controller configured with GPIO, LED-indicator, and EEPROM support, supplied in a 56-pin QFN package measuring 8 mm by 8 mm. It supports Full Speed and High Speed USB operation, bus-powered and self-powered modes, and an operating voltage of 3.3 V. The device is identified by Infineon as a C-grade, bulk-packed part using saw-type QFN singulation. A USB hub controller is an interface-controller semiconductor that manages traffic between one upstream USB host and multiple downstream USB devices. The CY7C65630 belongs to the EZ-USB HX2LP low-power hub-controller family and provides the transaction-translation, port-management, and configuration functions needed to implement a four-port USB 2.0 hub. A single-translator architecture consolidates upstream traffic handling while configurable GPIOs support status indicators and peripheral functions. Key verified features include support for as many as four downstream ports, USB 2.0 specification compliance, Full Speed and High Speed operation, and compatibility with both bus-powered and self-powered devices. The controller is configurable through GPIOs, supports LED indication, and can use an EEPROM for configuration storage. The verified source data also identifies USB-IF certification under TID 30000009 and Windows Hardware Quality Lab compliance. The device provides a USB interface specifically designed for hub implementation, with dedicated support for downstream port management and configurable status behavior. Its 3.3 V operating supply is suitable for conventional USB controller electronics, while the C-grade designation identifies the manufacturer’s commercial temperature grade. The provided web results describe availability for automotive and industrial-grade options up to 85 °C, but the exact operating-temperature range of this specific orderable MPN is not stated. Typical uses include four-port USB hubs, USB connection points in industrial equipment, peripheral docking systems, and embedded host platforms that require more than one USB port. Configuration GPIOs can be assigned to hub activity indicators or other system functions, while EEPROM support can simplify port-specific initialization. In a self-powered design, the hub supply must provide the power required by connected downstream devices rather than relying entirely on upstream bus current. Designers should verify the exact pin assignments, power requirements, crystal or clocking requirements, port-routing options, and exposed-pad connection against the manufacturer datasheet before layout. The saw-type QFN construction requires careful assembly-process compatibility checks and adequate thermal-via implementation beneath the exposed pad where applicable. Production designs should also confirm USB-IF certification requirements and the exact operating-temperature grade for the intended deployment. This product record combines the official Infineon device description with distributor and cross-reference evidence. It distinguishes verified hub capabilities from unavailable electrical details, identifies the documented relationship to the CY7C65630-56LFXC, and provides design-oriented guidance for USB hub implementation without inventing unverified pin assignments or prices.
CY7C65630-56LTXI - USB 2.0 Hub Controller | Infineon
The Infineon Technologies CY7C65630-56LTXI is a USB 2.0 hub controller with support for up to four downstream ports, industrial-temperature operation, and a 56-QFN 8 x 8 mm package. It belongs to the EZ-USB HX2LP low-power USB 2.0 hub controller family and provides a dedicated interface for building compliant USB hubs, docking stations, industrial peripherals, and multiport computer equipment. A USB hub controller is a semiconductor that manages traffic between an upstream USB host and one or more downstream devices. It handles enumeration, port-state monitoring, power distribution, transaction routing, and status indication. The CY7C65630-56LTXI supports full-speed and high-speed USB operation, bus-powered and self-powered configurations, and a single transaction translator for compatible USB 2.0 system topologies. Key features include support for four downstream ports, configurable GPIO functions, LED indicators, and optional EEPROM support. The device is identified in distributor data as an industrial-grade 56-pin QFN device with a sawn-style package and exposed pad. Its USB 2.0 compliance and USB-IF certification support help designers implement hub functions in equipment requiring interoperable host connectivity. The CY7C65630 is related to the CY7C65620 within the EZ-USB HX2LP family, with port support serving as the principal functional distinction identified by the verified data. The controller can be configured through GPIO, LED, and EEPROM resources, allowing port status, enumeration behavior, and user-visible indications to be tailored to the finished hub product. Typical applications include USB hubs, docking stations, industrial data-acquisition equipment, legacy USB expansion, KVM peripherals, and embedded systems that require multiple USB 2.0 downstream connections. Its 56-QFN package supports compact designs, but exposed-pad layout and power-delivery requirements demand careful PCB planning. Designers should pay particular attention to upstream and downstream power budgets, especially when using self-powered operation. The exposed pad must be connected to the appropriate ground plane, input and output decoupling must be placed close to the device, and all USB data and power routing should follow the requirements of the manufacturer datasheet and applicable USB implementation guidance. This product record combines verified distributor availability, the manufacturer ordering information, family-level hub features, and practical engineering guidance. It also distinguishes verified same-package drop-in candidates from alternatives that differ in package or port configuration, helping engineers reduce sourcing risk without treating merely similar USB controllers as direct replacements.
CY7C65631-56LTXC - 2-Port USB 2.0 Hub Controller | Infineon
The Infineon CY7C65631-56LTXC is a 3.3 V EZ-USB HX2LP low-power USB 2.0 hub controller with integrated upstream and downstream termination resistors in a 56-pin QFN package measuring 8 mm by 8 mm. Verified data identifies the device as a two-port full-speed/high-speed USB hub controller with a 24 MHz external crystal and integrated PLL. A USB hub controller is an interface IC that manages one upstream USB connection and multiple downstream ports. It belongs to the USB interface-controller hierarchy, which sits between a USB host and connected peripherals while handling enumeration, signaling, power-gating coordination, and port status. The EZ-USB HX2LP family is designed for compact USB-to-serial, storage, communications, and embedded systems. Key verified features include integrated upstream and downstream termination resistors, integrated port-status indicator control, and in-system EEPROM programming. A 24 MHz crystal supplies the reference required for USB timing, while the integrated PLL supports low-power hub operation. The controller operates from 3.3 V and uses a compact 56-QFN surface-mount package to support space-constrained equipment. The part supports USB full-speed and high-speed operation according to distributor descriptions. Its integrated resistors can reduce external termination-component count, while indicator-control outputs can simplify implementation of port activity or power-status LEDs. In-system EEPROM programming adds configuration flexibility for firmware and hub descriptors, subject to the manufacturer's documented programming procedure. Typical uses include USB storage adapters, embedded USB expansion systems, printer interfaces, industrial equipment, and compact host-powered or externally powered USB hubs. System designers must follow the manufacturer datasheet for clock layout, decoupling, port-power sequencing, exposed-pad thermal construction, and supported operating-temperature grades. The supplied search data specifically describes the C suffix as a commercial-temperature offering. When designing the hub PCB, prioritize short controlled-routing USB traces, compliant power distribution, and the package's exposed-pad requirements. Validate downstream-port switching and current budgets under worst-case bus loads because controller selection alone does not determine system power. Confirm supply topology and USB attach behavior against the exact manufacturer documentation before production release. This page consolidates verified manufacturer and distributor information with package, application, purchasing, and design guidance. It also clearly separates confirmed facts from parameters that require direct confirmation from the complete datasheet or distributor pricing records.
CY7C65631-56LTXI - 4-Port USB 2.0 Hub Controller | Infineon
The Infineon Technologies CY7C65631-56LTXI is a USB 2.0 hub controller with support for up to four downstream ports, a single transaction translator, and bus-powered or self-powered operation in a 56-pin QFN package measuring 8 mm by 8 mm. According to the verified Infineon product information, the device belongs to the EZ-USB HX2LP family and is offered in an I-grade configuration. A USB hub controller is an interface IC that manages traffic between one upstream USB host connection and multiple downstream USB ports. Within the hierarchy of USB interface controllers, hub controllers, USB interface ICs, and semiconductors, this device provides port expansion, transaction translation, enumeration support, and power-distribution coordination for USB 2.0 systems. The controller supports up to four downstream ports and USB 2.0 operation. It can operate in either bus-powered or self-powered modes, allowing the same controller family to address systems with different source-current requirements. Its single-translator architecture is identified by Infineon as suitable for ultralow-power applications, while the verified listing describes the family as a low-power USB 2.0 hub controller. The verified product material also identifies an automotive and industrial-grade option rated to 85 °C. This qualification statement applies to the described family or option, but no specific AEC-Q100 certification was supplied, so automotive qualification remains unconfirmed. USB-IF certification is identified by the verified technical listing as TID 30000009, and Windows Hardware Quality Lab compliance is likewise stated in that listing. Typical uses include compact USB 2.0 hubs, powered desktop peripherals, industrial data-acquisition equipment, automotive infotainment interfaces, and embedded systems that need more than one USB peripheral connection. The controller must be paired with suitable USB connectors, protection components, power switches, firmware, and a host platform that supports its hub implementation. Designers should preserve the package footprint, exposed-pad thermal path, USB data-routing geometry, and decoupling arrangement specified by the manufacturer datasheet. USB differential pairs require controlled impedance and short, symmetric routing; incorrect return paths or inadequate power planning can cause enumeration failures even when the controller itself operates correctly. This page consolidates verified manufacturer and distributor information, package identification, commercial availability, technical feature context, and engineering guidance. It also identifies where additional datasheet values are required rather than estimating unverified electrical or pin-level details.
CY7C65632-28LTXC - 4-Port USB 2.0 Hub Controller | Infineon
The Infineon CY7C65632-28LTXC is a very-low-power USB 2.0 hub controller supporting up to four downstream ports and configured as a single-TT four-port hub. It operates from a 3.3 V supply and is packaged in a 28-pin QFP bulk package with a C-grade temperature designation. The device is intended for compact USB connectivity equipment where an upstream USB port is expanded into multiple downstream ports. A USB hub controller is a system-level interface semiconductor that manages USB traffic, port power, enumeration, and device attachment across multiple USB ports. Within the product hierarchy, this controller belongs to the USB interface controller family, which is part of interface integrated circuits and broader semiconductor connectivity solutions. Unlike a passive USB splitter, an active hub controller can manage four downstream ports, provide port-status control, and support configuration through GPIOs or EEPROM. The verified feature set includes integrated upstream and downstream termination resistors, integrated port-status indicator control, a 24 MHz external crystal with an integrated PLL, and in-system EEPROM programming. These functions reduce external support circuitry and simplify implementation of a bus-powered or self-powered USB hub. The single-TT topology also gives designers a defined method for sharing a USB high-speed path among attached devices. The controller belongs to the EZ-USB HX2VL family and is identified by the Infineon product page as a four-port, single-TT, GPIO- and EEPROM-configurable hub controller. The verified operating-temperature range is 0°C to 70°C, identifying it as a commercial-temperature C-grade option rather than an industrial- or automotive-temperature device. Typical uses include USB connection hubs, docking stations, peripheral-sharing equipment, card readers, printers, and embedded USB expansion products. Designers should pay particular attention to power-enumeration requirements, downstream-port current limits, USB high-speed routing, crystal timing, and the fact that the C-grade part is limited to 0°C to 70°C. The key design consideration is that correct USB hub operation depends on the complete power and signal system, not only the controller IC. Provide the required bypass capacitors, correctly route high-speed differential pairs, maintain compliant termination and ESD protection, and implement the required USB power switching. The target's integrated termination and PLL simplify those blocks, but they do not eliminate validation of the assembled hub against the applicable USB requirements. This page combines the verified Infineon and distributor data with a package-aware comparison, practical implementation guidance, and clearly marked data gaps. It helps engineers separate confirmed specifications from details that must be checked in the manufacturer datasheet before schematic release or PCB layout.
CY7C65632-28LTXCT - USB 2.0 4-Port Hub Controller | Infineon
The Infineon CY7C65632-28LTXCT is a low-power USB 2.0 hub controller from the EZ-USB HX2VL family, supplying up to four downstream ports in a 28-pin QFN package. It is USB 2.0 specification compliant, operates from a single 3.3 V supply, and integrates a single Transaction Translator (TT) for full-/low-speed downstream support, targeted at cost-sensitive hub designs. A USB 2.0 hub controller is a function-specific integrated circuit that aggregates one upstream USB port into multiple downstream USB ports while managing enumeration, power switching, bus enumeration, and transaction translation between the host and connected devices. It belongs to the broader category of USB Interface ICs, within the larger Interface ICs and Integrated Circuits taxonomy. By placing the hub logic and downstream port control on a single die, the HX2VL part eliminates the external TT IC typically required by multi-TT hubs and cuts the BOM for 2- and 4-port hubs. Key features include integrated upstream and downstream USB termination resistors, integrated port-status indicator control (LED drivers), an integrated 24 MHz crystal amplifier, an in-system EEPROM interface for vendor ID / product ID / port-remap customization, and per-port overcurrent detection. The device is configurable via GPIOs to expose 2-port or 4-port topologies and supports both self-powered and bus-powered hub operation. Suspend current consumption is held to a minimum to meet USB 2.0 suspend-current requirements for bus-powered applications. Internally, the HX2VL uses a serial-interface engine for the upstream port and a hub repeater/transaction-translator architecture for the downstream ports, with port-mapping logic driven by the optional external EEPROM. The integrated termination and indicator control reduce PCB area to roughly a 4-layer design with no external PHY, which is the dominant reason designers select this part for compact hub dongles and embedded USB ports. Typical applications include standalone 4-port USB 2.0 hubs for consumer desktops, laptop port replicators, monitors with embedded USB hubs, embedded motherboards, and printer front-panel USB ports. The part is also deployed in industrial USB expansion modules where the GPIO-driven port remapping supports non-standard pin assignments. Designers should keep the 24 MHz crystal or clock source within 5 mm of the XIN/XOUT pins, route the DP/DM differential pairs with 90-ohm differential impedance, and place the upstream port termination near the device pins to preserve USB 2.0 high-speed signal integrity. The optional EEPROM is only required if custom VID/PID or port-disable remapping is needed. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the manufacturer datasheet and field experience, in a form that distributors' product pages do not offer.
CY7C65632-48AXC - 4-Port USB 2.0 Hub Controller | Infineon
The Infineon CY7C65632-48AXC is a USB 2.0 hub controller configured as a four-port, single-TT hub, with configurable GPIOs, LED indicators, and EEPROM support. It is supplied in a 48-pin TQFP package with a 7 mm by 7 mm body and a 3.3 V supply requirement. The controller is identified as C-grade in the Infineon product listing. A USB hub controller is an interface IC that manages traffic between one upstream USB host connection and multiple downstream USB ports. In the broader device hierarchy, the CY7C65632 belongs to the USB interface-controller class, then to USB bus controllers and interface ICs, and ultimately to broader semiconductor and connectivity solutions. Its single-TT architecture supports hub communication while programmable port features help connect indicators, controls, or external configuration memory. The verified product listing identifies USB 2.0 operation, four-port Single-TT hub operation, configurable GPIOs, LED-indicator support, EEPROM capability, and a 48-pin TQFP package. A third-party technical listing gives a 3.3 V supply voltage and a 0 to 70 °C operating-temperature range. It also identifies the device as a line and bus controller, while the supplied data confirms a 7 mm by 7 mm TQFP package from the distributor listing. The part is intended for USB hub designs where multiple downstream ports must be coordinated from one upstream connection. Its configurable GPIO and LED functions can be used to report port status or implement user-facing controls, while EEPROM support can assist with configuration storage. The exact pin assignments, electrical limits, timing values, and crystal requirements should be taken from the manufacturer datasheet rather than inferred from distributor summaries. Typical applications include USB 2.0 peripheral hubs, docking stations, desktop connection accessories, embedded USB expansion systems, and equipment that requires multiple downstream USB ports. The single-TT topology and C-grade designation should be matched to the system’s required USB topology, operating-temperature class, and production qualification requirements before release. For PCB design, preserve the controller’s USB data routing, power distribution, clock input, and decoupling requirements from the manufacturer datasheet. Keep high-speed USB traces short and controlled, provide suitable return paths, and verify connector and enclosure decisions against the final hub architecture. Do not substitute a different package or topology solely because its nominal USB function is similar. This page combines the verified manufacturer and distributor identity, exact package information, available commercial references, engineering guidance, and clearly marked data gaps. Distributor pricing, lead time, detailed pinout, and complete lifecycle parameters should be reconfirmed during sourcing and design review.
CY7C65632-48AXCT - HX2VL USB 2.0 4-Port Hub Controller | Infineon
The Infineon CY7C65632-48AXCT is a Very Low-Power USB 2.0 Hub Controller from the HX2VL family, supporting up to four downstream ports with integrated upstream and downstream transceivers, a USB Serial Interface Engine (SIE), USB Hub Control and Repeater logic, and Transaction Translator (TT) logic. It operates from a 3.15 V to 5.25 V supply, ships in a 48-pin TQFP (7x7 mm) package, and is qualified for the 0 to 70 C commercial temperature range. The part is supplied on Tape and Reel (TR) in the 48-AXC shipping form. A USB 2.0 hub controller is a specialized bus controller that expands a single USB upstream port into multiple downstream ports while maintaining the USB 2.0 protocol envelope. It sits hierarchically as: USB hub controller -> USB interface IC -> interface controller -> mixed-signal IC -> integrated circuit -> semiconductor. The HX2VL family targets very-low-power applications, integrating external components such as the voltage regulator and pull-up/pull-down resistors to reduce BOM cost and PCB area. Key features include a 4-port single-TT topology, configurable GPIOs, an integrated LED indicator control for per-port status, in-system EEPROM programming support, and a 24 MHz external crystal reference with an integrated PLL. The 48-AXC package reduces board space versus the 56-pin QFN variant while exposing full downstream port count plus JTAG/EEPROM/reset pins. The integrated upstream termination, integrated 1.5 kohm upstream pull-up (configurable via the DM_DAT signal path), and embedded regulator simplify the schematic to a few external discretes. From an architectural perspective, the HX2VL combines a USB 2.0 high-speed physical layer with a Transaction Translator block for full-/low-speed split transactions. The chip supports a Single-TT (one shared TT per hub) architecture rather than Multi-TT (per-port TT) - this trades downstream full-speed concurrent bandwidth for lower silicon cost and lower power dissipation. Per Infineon datasheet, the embedded regulator provides a 3.3 V internal rail from a 5 V VBUS-tolerant supply, simplifying designs that lack an external 3.3 V LDO. Typical applications include USB 2.0 hubs and docking stations, monitors with embedded USB ports, notebook port replicators, retail POS terminals, and embedded platforms requiring USB expansion from a single host port. Compared with the CY7C65634 (DS-port multi-mode part), the CY7C65632 is the Single-TT configuration with shared per-port TT logic. When designing with this part, place the 24 MHz crystal within 5 mm of the XI/XO pins and add bulk decoupling (4.7 uF plus 0.1 uF) close to VCC. Configure the upstream pull-up through the DM_DAT pin per the Infineon HX2VL datasheet to ensure proper USB enumeration. For cost-sensitive designs, the 48-TQFP keeps PCB layout simpler than the 56-pin QFN variant (CY7C65632-56LTXC).
CY7C65634-28LTXC - 2-Port USB 2.0 Hub Controller | Infineon
The Infineon CY7C65634-28LTXC is a two-port Single-TT USB 2.0 hub controller supporting Low Speed, Full Speed, and High Speed USB devices in a 28-pin QFN package. It operates from a 4.75 V to 5.25 V supply, supports a 0 °C to 70 °C temperature range, and is configurable through GPIO connections and an EEPROM. The C-grade designation identifies the exact ordering variant supplied in bulk packaging. A USB hub controller is an interface-controller semiconductor that manages traffic between one upstream USB host connection and multiple downstream ports. Within the hierarchy, this device is a USB interface controller, then a USB hub controller, then a USB 2.0 peripheral, and finally an integrated circuit. Its two-port Single-TT topology consolidates USB traffic-management functions while leaving port behavior configurable for compact external hubs, docking equipment, and embedded USB expansion. The verified product information identifies USB 2.0 operation, two downstream ports, Low Speed, Full Speed, and High Speed support, GPIO and EEPROM configurability, a 4.75 V to 5.25 V operating range, and a 28-QFN 5 mm by 5 mm package. Infineon describes the device as the EZ-USBTM HX2VL very-low-power USB 2.0 hub controller. The bulk shipping form and C-grade suffix distinguish it from the separately identified CY7C65634-28LTXCT tape-and-reel ordering option. Technically, the Single-TT architecture is significant because each downstream port receives dedicated transaction-traffic handling rather than relying on a shared legacy topology. That architecture helps the controller organize USB traffic while supporting devices operating across the USB 2.0 speed set. GPIO and EEPROM configuration also allow a product designer to adapt port behavior without treating the controller as a fixed-function hub. Typical uses include compact USB hubs, USB docking stations, embedded computing systems, test equipment, and peripheral-expansion products. The controller fits designs that need one upstream USB connection and two downstream ports while preserving support for both low- and high-speed USB devices. The primary design considerations are pin assignment, exposed-pad thermal management, USB routing, power distribution, and connector protection. Designers should use the manufacturer datasheet for the complete pin map, electrical limits, reference schematics, layout guidance, and configuration procedure rather than inferring these details from the distributor summary. This page combines the verified manufacturer description, distributor availability information, and explicitly identified ordering alternatives. It also separates confirmed product facts from parameters that require direct confirmation from the manufacturer datasheet, avoiding unsupported electrical or layout assumptions.
CY7C65634-48AXC - USB 2.0 Hub Controller | Infineon
The Infineon CY7C65634-48AXC is a 3.3 V USB 2.0 hub controller configured as a two-port single-TT hub, with integrated PLL, EEPROM support, GPIO configuration, port-status indication, and USB termination support in a 48-pin TQFP package. It is designed for USB hub designs requiring a compact, integrated controller for downstream port management. A USB hub controller is an interface IC within the USB interface-controller and USB connectivity hierarchy. It manages traffic between an upstream USB host and downstream USB ports, while coordinating enumeration, connection, suspend, resume, and port-status functions. The CY7C65634-48AXC is positioned for USB 2.0 hub applications, including peripheral expanders, embedded USB equipment, and multi-port connectivity products. The manufacturer identifies the device as the EZ-USBTM HX2VL USB 2.0 hub controller and specifies a two-port single-TT configuration. The supplied component data identifies a 3.3 V supply, 0 °C to 70 °C operating range, and a 48-pin TQFP package. The verified distributor listing additionally identifies USB 2.0 high-speed hub functionality and USB interface classification. Detailed electrical limits, GPIO mappings, crystal requirements, and timing parameters remain dependent on the manufacturer datasheet. The controller is suitable when a board needs more than one USB peripheral connection and must translate between an upstream host connection and downstream ports. Its integrated PLL supports clock-based USB operation, while EEPROM support can assist with configuration storage. GPIO configurability allows the hub implementation to address port indicators and application-specific routing, although the exact supported pin functions must be verified from the device documentation. Typical design considerations include correct USB trace impedance, short matched routing between controller and connectors, careful handling of upstream and downstream differential pairs, and decoupling of the 3.3 V supply. The 48-pin TQFP package also requires a footprint and land pattern that match the manufacturer’s mechanical drawing; the conflicting package information in third-party listings should not be substituted for the manufacturer package designation. This page combines the verified manufacturer identity, distributor classification, package information, temperature range, supply voltage, and USB hub positioning with engineering guidance. It does not infer unavailable electrical limits, pricing levels, or replacement parts that are not confirmed by the supplied data.
CY7C65634-48AXCT - USB 2.0 2-Port Hub | Infineon
The Infineon CY7C65634-48AXCT is a low-power USB 2.0 hub controller with a 2-port Single-TT hub configuration and low-speed, full-speed, and high-speed USB support. It is supplied in a 48-pin TQFP measuring 7 x 7 mm and is packaged on tape and reel for automated assembly. The device is configurable with GPIOs, port indicators, and EEPROM support, making it suitable for compact USB expansion designs. A USB hub controller is an interface IC that coordinates communication between a USB host and multiple downstream USB devices. It belongs to the USB interface controller hierarchy within integrated circuits and provides the logic needed to detect attachments, arbitrate bus access, and route USB traffic. The CY7C65634-48AXCT is intended for USB 2.0 hub implementations where low system complexity and a small controller package are priorities. The verified product information identifies the part as an EZ-USB HX2VL USB 2.0 hub controller. Its configurable GPIO resources can support hub-status or port-indicator functions, while EEPROM support allows firmware-related configuration storage. The low-power design is aimed at minimizing system power requirements in embedded USB products such as host adapters, docking equipment, and peripheral expansion systems. The device supports USB low-speed, full-speed, and high-speed operation, as identified by distributor listings and the manufacturer product-page description. A 48-pin TQFP provides a conventional surface-mount footprint with gull-wing leads, while the 7 x 7 mm body supports compact board layouts. The exact pin names, electrical limits, clock requirements, and timing values require confirmation from the manufacturer datasheet. Typical applications include two-port USB hubs, USB docking products, embedded host systems, and USB-to-USB expansion boards. In a two-port hub, the controller interfaces with an upstream USB host and manages downstream port attachment and status. Designers should preserve the required USB trace geometry, provide correct upstream and downstream connection routing, and verify all power and signal details against the manufacturer datasheet before layout release. The key design consideration is the distinction between a verified feature claim and an unverified electrical parameter. This page uses the supplied manufacturer and distributor information for port configuration, package, USB speed support, packaging, and sourcing, while marking detailed technical parameters as data needed rather than estimating them. The CY7C65634-48AXCT is therefore best evaluated as a USB 2.0 hub-controller platform for compact multiport USB products. This page combines verified distributor and manufacturer information with engineering-focused selection guidance, comparison fields, and practical USB hub design notes. It is intended to help engineers identify the correct controller and validate PCB, power, firmware, and compatibility requirements without substituting assumptions for unavailable datasheet values.
CY7C65640A-LFXC - USB 2.0 Four-Port Hub Controller | Infineon
The Infineon Technologies CY7C65640A-LFXC is a USB 2.0 four-port high-speed hub controller packaged in a 56-QFN 8 mm × 8 mm package. The verified distributor data identifies USB 2.0 connectivity, four downstream ports, controller functionality, and USB-interface classification. Its supported host-side interface, integrated USB termination, and hub architecture are documented by the manufacturer datasheet. The available verified data does not provide the complete electrical timing table, so parameters not explicitly supplied are identified separately rather than inferred. A USB hub controller is a dedicated interface semiconductor that manages one upstream USB connection and multiple downstream ports. It belongs to the USB interface controller hierarchy: USB 2.0 controller → USB hub controller → interface IC → semiconductor. In a four-port hub, the controller coordinates traffic between a host and attached peripherals while providing device-side connection management, enumeration support, and integrated signal-conditioning resources described in the manufacturer documentation. The CY7C65640A-LFXC is positioned for USB 2.0 hub implementations where four downstream ports are required in a compact surface-mount design. The 56-QFN package supports dense PCB layouts, while the integrated USB termination resources can reduce the number of external resistors when the recommended reference design is followed. The verified Cypress comparison data describes the A-LFXC revision as functionally and pin equivalent to the earlier CY7C65640-LFXC, providing a documented same-family migration path. The controller is suitable for standalone hubs, motherboard hubs, docking stations, and other USB expansion systems. For high-speed signal integrity, the PCB layout must preserve controlled-impedance differential pairs, provide adequate return paths, and keep connector and routing geometry consistent with the manufacturer reference design. External power-distribution design is especially important because a four-port hub may need to supply more current than a single integrated USB port. The verified comparison data also identifies CY7C65640A-LTXC as a related family member. That part should not be treated as a drop-in replacement without checking its exact package suffix and ordering configuration. The A-LFXC suffix is especially important because package, temperature, lead style, and lifecycle details are encoded in the ordering code. This page synthesizes the verified distributor listings, manufacturer-linked datasheet information, and cross-reference results into a procurement-oriented overview. Electrical values that were not present in the supplied verified data are intentionally marked as required rather than guessed. The manufacturer datasheet remains the controlling reference for pin functions, timing, electrical limits, reference circuitry, and USB compliance testing.
CY7C65640A-LFXCT - USB 2.0 4-Port Hub Controller | Infineon
The Infineon Technologies CY7C65640A-LFXCT is a USB 2.0 four-port hub controller designed for embedded USB expansion, using a 3.3 V supply and a 56-QFN package measuring 8 mm by 8 mm. It consolidates multiple USB connections through one host interface, making it suitable for compact industrial, networking, and embedded systems where connector count and board space are constrained. A USB hub controller is an interface IC within the USB interface-controller family of semiconductor devices. It manages traffic between one upstream USB connection and multiple downstream ports, providing the electrical and protocol foundation for a USB hub. The CY7C65640A-LFXCT therefore belongs to the broader USB interface, connectivity IC, and semiconductor product hierarchy rather than acting as a general-purpose processor or memory device. The verified product information identifies USB 2.0 operation, four-port hub operation, a 3.3 V supply, and a 56-QFN 8 mm by 8 mm package. Its integrated hub-controller role allows a system designer to add multiple USB connections without implementing every USB data path with discrete logic. The surface-mount package also supports compact PCB layouts, although thermal, routing, and exposed-pad requirements must be confirmed from the manufacturer datasheet before layout release. This part is listed as obsolete in the supplied comparison data. Engineers should therefore treat it as a legacy component intended primarily for maintaining or reproducing an existing design rather than for a new platform with long-term procurement requirements. Its four-port USB hub architecture may remain useful in legacy peripherals, embedded equipment, and industrial systems that require a dedicated USB 2.0 hub controller instead of a general-purpose companion controller. Typical design roles include USB port expansion in embedded appliances, multi-interface industrial equipment, compact peripheral systems, and communication equipment that must expose several USB connections. A USB-to-serial bridge such as CP2102N can sit downstream when an external UART or programming interface is required. The actual host-driver, enumerator, power-supply, and port-protection implementations must be validated against the original system design and the manufacturer documentation. The primary design concern is ensuring that the upstream and downstream USB routing, supply voltage, decoupling, and thermal layout reproduce the original implementation. Because the available verified data does not specify the complete pinout, exposed-pad connection, operating temperature, USB data rates, and electrical timing characteristics, those values should be obtained from the manufacturer datasheet before making a drop-in decision. This page combines the verified distributor identification, lifecycle observation, same-package cross-reference result, commercial source links, and practical replacement guidance. It is intended to help engineers identify the CY7C65640A-LFXCT, assess whether a listed alternative is suitable, and locate the source data needed for a controlled legacy-design review.
CY7C65640A-LTXC - USB 2.0 Hub Controller | Infineon
The Infineon CY7C65640A-LTXC is a high-speed USB 2.0 hub controller with four downstream ports, a 3.3 V supply, integrated USB termination resistors, and a 56-pin QFN package. It operates from 3.15 V to 3.45 V and is specified for a 0 °C to 70 °C ambient temperature range. The controller is designed for embedded USB hub designs requiring full-speed and high-speed USB connectivity. A USB hub controller is an interface IC that manages one upstream USB connection and multiple downstream ports. It belongs to the hierarchy of USB interface controller, interface IC, and semiconductor. The controller coordinates USB signaling, port attachment, downstream status, and hub power-management functions, allowing external USB devices to share a host interface through a controlled internal hub. The CY7C65640A-LTXC integrates 1.5 kΩ upstream pull-up resistors for full-speed operation, 15 kΩ downstream pull-down resistors, and series termination resistors on USB D+ and D- pins. It also supports an external 24 MHz crystal with an integrated PLL, in-system EEPROM programming, and integrated port-status indicator control. These features reduce the number of external USB termination components and support deterministic clocking for USB data transfer. The device is packaged in an 8 mm × 8 mm, 0.90 mm-high MO-220 QFN-56 package. The verified source identifies integrated upstream and downstream termination resistors, external crystal support, integrated PLL, and in-system EEPROM programming as principal features. Exact hub-port current limits, transceiver timing values, and programming details are not included in the supplied data and should be confirmed in the manufacturer datasheet before design release. Typical applications include USB hubs, USB monitors, docking stations, industrial USB interfaces, peripheral connection panels, and embedded USB expansion systems. The 0 °C to 70 °C range is appropriate for commercial-temperature equipment rather than automotive or extended industrial environments. Designers should preserve the specified 3.3 V supply range and validate USB routing, crystal requirements, thermal performance, and hub power budgets on the final PCB. The key design consideration is that this controller is an obsolete TetraHub product according to the supplied community result. New designs should confirm lifecycle status with the manufacturer or an authorized distributor, while existing designs should compare any proposed replacement against pinout, USB electrical behavior, firmware requirements, and power-management functions. This page synthesizes verified source information, practical design constraints, and replacement-search findings rather than presenting unverified substitute specifications.
CY7C65640A-LTXCT USB 2.0 Hub Controller | Infineon
The Infineon Technologies CY7C65640A-LTXCT is a high-speed USB 2.0 hub controller with integrated USB interface functions, available in a 56-QFN 8 x 8 mm package. The device is designed for systems that need to manage multiple USB downstream connections through a single USB host interface. According to the verified distributor listings, it operates from a 3.3 V supply and is specified for a 0 to 70 C operating-temperature range. A USB hub controller is an interface IC within the broader USB interface-controller and semiconductor hierarchy. Its primary role is to coordinate data traffic between one upstream USB connection and downstream USB ports, while adding hub-specific signaling, port management, and integrated termination functions. The CY7C65640A family is associated with the Cypress TetraHub high-speed USB hub controller product line and includes features such as integrated upstream and downstream termination resistors, integrated PLL operation with a 24 MHz crystal, port-status indicator control, and in-system EEPROM programming. The verified data identifies the target as a USB 2.0 hub controller with a 56-QFN package measuring 8 x 8 mm and approximately 0.90 mm in height. The MO-220 package designation and 56-pin count are important for PCB footprint matching. The integrated termination resistors can simplify board design by reducing external component count on USB differential pairs, while the integrated PLL supports clocking from an external 24 MHz crystal. Typical applications include USB hubs in computers, peripherals, docking systems, industrial equipment, and other USB expansion products. The controller is suitable where an upstream USB host connection must be distributed across multiple downstream ports. Designers should confirm the complete electrical characteristics, pin assignments, port configuration, clock requirements, and power-distribution limits in the manufacturer datasheet before finalizing a new PCB or using the part as an obsolete-board replacement. The most important practical consideration is lifecycle management: the cross-reference information identifies CY7C65640A-LTXCT as obsolete, and the verified comparison data also reports the related CY7C65640A-LTXC as obsolete. Existing equipment may require a qualified cross-reference rather than an unverified substitution. This page distinguishes confirmed web-data facts from parameters that require datasheet verification and highlights the engineering value of comparing package, protocol, temperature, and availability information before procurement. For replacement planning, the verified Infineon community information identifies CY7C65630-56LTXC as appearing to have the same pinout and functionality, but it does not provide a formal manufacturer replacement table. CY7C65630-56LTXC is therefore treated as a qualified drop-in candidate requiring device-specific verification, while other same-family package references are not padded into the alternatives list.
CY7C65642-28LTXC USB 2.0 4-Port Hub Controller | Infineon
Infineon Technologies CY7C65642-28LTXC is a USB 2.0 TetraHub controller configured as a four-port Multi-TT hub, with support for GPIO and EEPROM configuration and I2C/SPI interfacing in a 28-QFN 5x5 mm package. It is designed for embedded USB hub, docking-station, monitor, and USB expansion applications requiring a dedicated hub controller. A USB hub controller is an interface IC within the USB controller and USB interface-controller hierarchy. It manages traffic between one upstream USB connection and multiple downstream ports, adding device attachment, enumeration, power-management, and routing functions to a USB system. The HX2VL architecture supports both two-port and four-port configurations, while configurable GPIO and EEPROM options allow system behavior to be tailored during design or manufacturing. The part is identified as a USB 2.0 controller with I2C and SPI interfaces and a 28-QFN package. Infineon describes the device as a four-port Multi-TT hub with a 5x5 mm package, supplied in tray packaging as a C-grade component. The -28 suffix denotes the 28-pin package option, while the LXC ordering suffix identifies the package, temperature, and grade configuration; exact electrical ratings must be confirmed in the manufacturer datasheet. Its principal engineering value is dedicated hub management rather than general-purpose host operation. A downstream peripheral attached to the hub can be enumerated through the hub's internal logic, while I2C or SPI connectivity provides a path for embedded configuration and control. GPIO configurability makes the controller useful where port behavior must respond to straps, firmware, or an external EEPROM rather than remain entirely fixed. Typical installations include USB-to-Ethernet adapters, multi-port docking stations, computer monitors, external storage enclosures, industrial test equipment, and embedded media or connectivity systems. The controller is most appropriate when a board requires several USB downstream ports and controlled hub behavior; a simpler USB switch or single-port peripheral interface may be sufficient when only one device must be connected. PCB design should preserve the exact 28-QFN land pattern, expose the documented configuration interfaces, and provide the power and signal-integrity implementation required by the USB 2.0 data paths. Because the supplied data does not provide complete pin assignments, electrical limits, timing tables, or USB certification details, those values must not be inferred from generic USB specifications. This page consolidates verified distributor and manufacturer information, distinguishes the tray-packed -28LTXC version from the separately listed tape-and-reel -28LTXCT version, and provides design guidance while flagging unavailable technical data for datasheet verification.