CY7C65642-28LTXC USB 2.0 4-Port Hub Controller | Infineon
MPN: CY7C65642-28LTXC ✓ NakahandaCY7C65642-28LTXC Ulas
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.
Mga alternatibo na pwedeng ilagay na CY7C65642-28LTXC — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok CY7C65642-28LTXC (parehas na form factor at footprint) — pagkakaiba sa USB Specification, Operating Temperature, Package, Packaging, RoHS Status.
CY7C65632-28LTXCT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →CY7C65632-28LTXCT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →CY7C65642-28LTXCT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →CY7C65630
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
CY7C65631
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
CY7C65642-28LTXC Mga Spesipikasyon
| Product Type | USB 2.0 Hub Controller |
| Architecture | EZ-USB HX2VL |
| Hub Configuration | 4-port Multi-TT hub |
| Configurable Port Count | 2 or 4 ports |
| USB Specification | USB 2.0 |
| Serial Interfaces | I2C and SPI |
| Configuration Method | Configurable with GPIOs and EEPROM |
| Package Type | 28-QFN |
| Package Dimensions | 5 x 5 mm |
| Uri ng Pagpapasok | Surface Mount |
| Component Grade | C-grade |
| Packaging | Tray |
| Bilang ng Pin | 28 pins |
Gabay sa Pin Configuration ng CY7C65642-28LTXC 5 x 5 mm
Pin configuration para sa CY7C65642-28LTXC (5 x 5 mm package). Ang pagnunumero ng pin, mga function, at connection diagram ay tinukoy sa datasheet ng manufacturer. Sumangguni dito para sa eksaktong footprint at mga alituntunin sa soldering.
Wala ng detalyadong pinout data na magagamit para sa CY7C65642-28LTXC.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
CY7C65642-28LTXC ay nararapat para sa 6 aplikasyons: Embedded USB Hub, USB Docking Station, Computer Monitor USB Hub, Industrial USB Expansion, USB Storage and Media Hub, Test and Measurement Instrument.
Embedded USB Hub
The CY7C65642-28LTXC is suitable for an embedded USB hub because it provides a dedicated USB 2.0 four-port Multi-TT architecture rather than relying on a general-purpose host controller. Place the device between an upstream USB connection and the downstream hub ports, then configure port behavior through the available GPIO or EEPROM options. Its I2C and SPI interfaces can support embedded control of the hub subsystem. The design must follow the manufacturer's 28-QFN pinout and USB data-routing guidance, while checking that all port requirements align with the exact HX2VL configuration. Because the supplied data does not include operating current, voltage, or thermal limits, those parameters must be confirmed before finalizing power delivery and enclosure design.
Inirekomenda
USB Docking Station
The CY7C65642-28LTXC can serve as the USB expansion controller in a docking station that presents several downstream connections to a host computer. Its four-port Multi-TT configuration is useful when the dock must enumerate multiple peripherals while managing upstream and downstream routing internally. GPIO configuration allows board-specific behavior to be established during startup, while EEPROM support can retain device or port configuration data. Implementation requires careful separation of USB data paths, connector protection, and port-power switching. Before releasing the design, engineers should verify the exact supported port arrangement, electrical limits, and enumeration behavior in the Infineon documentation rather than inferring them from the four-port marketing description.
Inirekomenda
Computer Monitor USB Hub
The CY7C65642-28LTXC fits a monitor design that includes an integrated USB hub for keyboards, mice, storage devices, and other peripherals. A dedicated USB 2.0 hub controller simplifies the downstream-port logic while GPIO and EEPROM configurability support product-specific attachment behavior. The 28-QFN 5x5 mm package is useful when the monitor electronics have limited board area, although exposed-pad layout and copper heat spreading must follow the package drawing. USB signal routing remains critical because uncontrolled impedance or poor return paths can cause enumeration and data-integrity problems. Verify the monitor's port-current budget, connector choices, grounding strategy, and supported operating environment against the manufacturer specifications before production.
Inirekomenda
Industrial USB Expansion
The CY7C65642-28LTXC can support industrial equipment that uses USB to connect service interfaces, data acquisition accessories, removable storage, or configuration tools. Its dedicated four-port Multi-TT topology provides managed USB expansion within the embedded system, while I2C and SPI connectivity can coordinate the hub with other control logic. GPIO- or EEPROM-based setup allows different production variants to share a common board design. For industrial use, engineers must validate the exact temperature grade, supply tolerances, ESD strategy, and long-term availability from the manufacturer. The verified web snippets confirm a C-grade component but do not expose operating-temperature values, so enclosure temperature and environmental requirements should be treated as unresolved until the datasheet is checked.
Inirekomenda
USB Storage and Media Hub
The CY7C65642-28LTXC is applicable to a multi-device media or storage hub where several USB 2.0 peripherals must connect to one embedded host. Its four-port architecture can organize downstream traffic under a dedicated hub controller, and configurable GPIOs can participate in device-mode or power-management sequencing. The I2C and SPI interfaces provide additional control paths for board-level configuration or monitoring. A practical implementation should isolate connector-side transients, maintain controlled USB impedance, and account for simultaneous enumeration and media-transfer load. Because USB traffic, power, and thermal performance figures are not included in the supplied verified snippets, those limits must be obtained from the official datasheet before selecting connectors, switches, and enclosure cooling.
Inirekomenda
Test and Measurement Instrument
The CY7C65642-28LTXC can be used in a test instrument that exposes USB connections for host control, data capture, calibration, and removable test media. The dedicated hub function simplifies management of several USB 2.0 downstream ports, while GPIO and EEPROM configuration support repeatable instrument startup and port setup. Compactness comes from the 28-QFN 5x5 mm package, but the exposed pad and high-speed USB traces still require careful PCB execution. Signal-integrity verification should include USB eye-quality, enumeration under all supported device combinations, and cable or connector fault cases. The supplied evidence does not establish compliance for a particular measurement standard, so any regulatory claim must remain pending until supported by the product documentation.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for CY7C65642-28LTXC — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | CY7C65632-28LTXCT | CY7C65632-28LTXC | CY7C65642-28LTXCT | CY7C65630 | CY7C65631 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 28-QFN (5x5 mm) | 28-QFN (5x5 mm) | 28-QFN (5x5 mm) | 28-QFN (5x5 mm) | 28-QFN (5x5 mm) | 28-QFN (5x5 mm) |
| Product Family | EZ-USB HX2VL | EZ-USB HX2VL | EZ-USB HX2VL | EZ-USB HX2VL | HX2LP | HX2LP |
Pangunahing mga Pagkakaiba
- Exact tray-packaged ordering option (kumpara saCY7C65642-28LTXCT)
- Documented close HX2VL-family replacement path (kumpara saCY7C65632-28LTXCT)
- Four-port Multi-TT positioning with configurable interfaces (kumpara saCY7C65630)
Talaan ng Disenyo
Implement the CY7C65642-28LTXC on the exact 28-QFN land pattern published by Infineon and preserve the exposed-pad connection specified by the package drawing. Place USB high-speed traces as short and symmetric as practical, provide a continuous return path beneath them, and avoid splits in the ground plane. Do not copy a generic 28-QFN footprint solely from pin count; land dimensions, pad length, and thermal-via requirements must come from the manufacturer package drawing.
Design the hub power tree so upstream supply, internal controller supply, and downstream port power are handled according to the manufacturer limits. The supplied data does not provide input-voltage or output-current ratings, so do not select upstream switches or connector fuses from generic USB assumptions. Confirm the supported supply range, port-current budget, startup sequence, and over-current behavior in the datasheet before establishing component ratings and the downstream power budget.
A matching 28-QFN package does not by itself prove that a substitute is a functional drop-in. Before replacing the CY7C65642-28LTXC with a related HX2VL or HX2LP device, compare pin names, signal directions, GPIO behavior, configuration EEPROM contents, supported port modes, and the required downstream routing. In particular, the supplied community thread calls CY7C65632-28LTXCT a very close replacement, but production substitution still needs manufacturer documentation and firmware validation.
Validate USB enumeration and eye performance with the intended connector, cable, hub-port population, and PCB stack-up rather than relying on schematic connectivity alone. Keep connector protection close to each external USB port, maintain continuous reference planes under differential pairs, and minimize stub branches created by test pads or isolation components. Run compliance testing after the final GPIO and EEPROM configuration is fixed, because enabled-port behavior can change the physical test condition.
Impormasyon ng Pagsunod sa Kautusan
The verified manufacturer and distributor snippets do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. The component is an industrial USB interface controller rather than an explicitly automotive-qualified AEC-Q100 device.
