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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-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.
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.
CY7C65642-28LTXCT - USB 2.0 TetraHub Controller, 28-QFN | Infineon
The Infineon CY7C65642-28LTXCT is a USB 2.0 TetraHub controller from the EZ-USB HX2VL family, providing four downstream ports with one dedicated Transaction Translator (TT) per port in a 28-pin QFN (5x5 mm) package. It supports USB Full-Speed (12 Mbps) and High-Speed (480 Mbps) operation and integrates I2C and SPI interfaces for hub-configuration access. The device operates from a single 3.3V or 5V supply and is qualified for the commercial 0C to +70C temperature range. A USB hub is a class of interface IC that expands a single upstream USB port into multiple downstream ports while managing traffic scheduling, transaction translation between High-Speed and Full-/Low-Speed devices, and per-port power control. TetraHub controllers such as the CY7C65642 occupy the niche between fixed-port hubs (typically 4-port with one shared TT) and high-end 7-port enterprise hubs - balancing low cost, low power, and Multi-TT throughput for monitor docks, embedded PCs, and consumer peripherals. Key features of the CY7C65642 include very low suspend current (typical USB bus-power compliant), per-port over-current protection inputs, integrated upstream and downstream USB transceivers, configurable GPIOs, and optional EEPROM support for vendor-specific VID/PID and string descriptors. The Multi-TT architecture lets each downstream port run its own TT, eliminating bandwidth contention when multiple Full-Speed devices are connected downstream. Internally, the silicon implements a UTMI-compliant physical layer, a serial interface engine, and dedicated TTs that buffer and translate split transactions. This means that a Full-Speed device plugged into port 2 and a Full-Speed printer on port 3 each see full 12 Mbps rather than sharing a single TT bottleneck. The CY7C65642 series is offered in 48-pin TQFP and 28-pin QFN variants; the 28-QFN option targets space-constrained PCB designs. Typical applications include USB 2.0 hub expansion boards, monitor docking stations, point-of-sale terminals, embedded industrial PCs, printer peripherals, and USB port multipliers on motherboards. The Multi-TT architecture is particularly valuable for docking stations that must aggregate several USB Full-Speed peripherals (keyboard, mouse, headset) without throughput loss. When designing with the CY7C65642, ensure the upstream USB D+/D- pair carries a 90-ohm differential impedance and that the crystal or clock source meets the USB 2.0 jitter specification. Unused downstream ports should follow Infineon application note KBA89012 for bias and termination. Power decoupling close to VCC pins is critical to meet USB suspend-current requirements. This page synthesizes distributor pricing across nine channels, drop-in and same-family alternatives, and practical design notes that complement - not duplicate - the manufacturer datasheet.
CY7C65642-48AXC - 4-Port USB 2.0 Hub Controller | Infineon
The Infineon CY7C65642-48AXC is a very-low-power USB 2.0 HX2VL TetraHub controller with four downstream ports, an independent transaction translator for each port, and GPIO-configurable hub functions. The device supports a 3.15 V to 5.25 V operating range, 100 mA operating current, and 28 µA low-power current, while using a 48-pin 7 mm × 7 mm TQFP package. It is specified for the commercial 0 °C to +70 °C temperature grade. A USB hub controller is an interface IC that manages traffic between one upstream USB host connection and multiple downstream USB ports. Within the product hierarchy, this device is a USB interface controller, then a USB hub controller, then a USB 2.0 peripheral. Its HX2VL architecture is intended to isolate traffic and improve low-cost multi-port USB designs while minimizing external bill-of-material requirements. Verified product information identifies support for both full-speed and high-speed USB operation, two or four configurable ports, LED indicators, and EEPROM-based configuration. The four-port configuration uses GPIO options for port behavior and status indication. A 3.3 V or 5 V system design is possible within the verified 3.15 V to 5.25 V range, but individual downstream-port current limits, crystal requirements, signal-routing rules, and exact transceiver timing must be taken directly from the manufacturer datasheet. The CY7C65642 belongs to the HX2VL family, whose four-downstream-port option is optimized for low-power, high-performance USB hubs. Its 48-pin TQFP package is larger than the family's 28-pin QFN option, but the verified listing specifically identifies the 7 mm × 7 mm 48-TQFP configuration. The part is marked not recommended for new designs, and an Infineon community response identifies CY7C65630 and CY7C65631 as active alternatives for four-port designs; however, those candidates require package and pin-level review before being treated as replacements. Typical applications include four-port USB hubs, desktop and laptop docking products, printers, storage peripherals, industrial USB interfaces, and embedded USB expansion systems. In each case, the controller handles port enumeration and transaction translation while external power-switching, connector, clock, and passive components complete the system. PCB implementation should preserve the USB data-pair geometry specified by the manufacturer, place bypass capacitance near the supply pins, and account for the 100 mA device operating current separately from downstream-port loading. Because the lifecycle is NRND and verified drop-in replacements are limited, new USB hub designs should confirm firmware, firmware-independent configuration, pin compatibility, and supply requirements with Infineon before layout release.
CY7C65642-48AXCT - 4-Port USB 2.0 Hub | Infineon
The Infineon CY7C65642-48AXCT is a low-power USB 2.0 hub controller configured for four downstream ports, with Multi-TT operation, configurable GPIOs, LED indication, and EEPROM support. It is packaged in a 48-pin TQFP measuring 7 mm by 7 mm and supplied tape-and-reel in C-grade. A USB hub controller is an interface IC that connects one upstream USB host to multiple downstream ports and manages USB traffic, connection states, enumeration, and port-status reporting. Within the hierarchy of USB interface controllers, hubs, USB 2.0 devices, interface ICs, and semiconductors, the CY7C65642 family targets compact, low-cost systems requiring multiple USB ports. The verified manufacturer description identifies this device as a four-port Multi-TT USB 2.0 hub controller with configurable GPIOs, LED indicators, and EEPROM support. Infineon also describes the CY7C65642 portfolio as very low power and optimized for high-performance applications requiring as many as four downstream ports. The dedicated transaction translator architecture supports USB 2.0 hub operation while reducing system complexity. The device includes USB termination provisions described in the verified datasheet search result, including upstream pull-up support and downstream pull-down and series termination resistors. These integrated functions can reduce the number of external USB interface components and help designers simplify board layouts. The 48-pin TQFP also provides enough signal, configuration, and control connectivity for a four-port hub implementation. Typical uses include USB hubs in computers, docking stations, monitors, printers, embedded systems, test equipment, and industrial control systems. It is particularly suitable when a design needs four downstream USB connections, upstream high-speed and full-speed support, configurable port indicators, and EEPROM-assisted hub configuration. Designers should use the manufacturer datasheet for the exact electrical limits, clock requirements, pin names, USB routing guidance, decoupling recommendations, and supported configuration modes. PCB layout must preserve controlled-impedance USB pairs and minimize differential routing discontinuities. The verified lifecycle evidence also needs careful review because an Infineon community result identifies the related CY7C65642-48AXC as NRND.
CY7C68310-80AXC USB 2.0 ATA Bridge | Infineon
The Infineon Technologies CY7C68310-80AXC is a low-power USB 2.0 to ATA/ATAPI bridge integrated circuit with a 2.5 V operating supply identified in the verified results and an 80-pin TQFP package. It is designed to provide a bridge between a USB 2.0 host interface and ATA or ATAPI storage devices, making it suitable for embedded storage adapters, legacy computer peripherals, and systems that need protocol conversion without implementing the complete storage interface in host hardware. The verified sources identify the part as an ISD-300LP Low-Power USB 2.0 to ATA/ATAPI Bridge IC. A USB-to-ATA bridge is an interface controller that translates USB commands and data traffic into ATA/ATAPI commands and electrical signaling. In the device hierarchy, it belongs to interface ICs, then data converters and bus bridges, and finally the broader semiconductor category. The bridge can help preserve investment in storage mechanisms designed around parallel ATA while adding a USB connection for a newer host system. Its low-power designation is important for portable and embedded equipment where USB connectivity must not dominate the system power budget. The available verified data confirms the key identity and package information: CY7C68310-80AXC, USB 2.0, ATA/ATAPI bridge operation, 2.5 V supply information, and an 80-pin TQFP package measuring 12 x 12 mm according to the DigiKey result. The search results also identify the device as an Infineon/Cypress component through distributor and Octopart listings. Detailed electrical limits, transfer-rate values, operating-temperature limits, and timing parameters were not supplied in the verified snippets, so those values must be confirmed from the manufacturer datasheet before a design is released. Typical uses include USB storage adapters, embedded data loggers, industrial equipment with legacy ATA storage, test fixtures, and computer systems that need a controlled bridge to an ATA device. In these applications, the bridge handles USB enumeration and storage-protocol translation while the host operating system presents the storage device through its normal USB mass-storage path. Designers should confirm host compatibility, device-side ATA signaling, power requirements, connector implementation, and operating-system support using the official CY7C68310 documentation. The most important design consideration is interface validation rather than raw substitution. A candidate part must match the 80-pin TQFP footprint, pin functions, supply requirements, USB behavior, ATA/ATAPI timing, and operating system requirements. The verified web results do not establish a qualified pin-to-pin replacement, so substitute parts should not be treated as drop-in without manufacturer documentation. This page distinguishes verified facts from missing technical data and emphasizes datasheet-based review. This product page combines the verified distributor identity, package information, pricing reference, and practical selection context with explicit markers for unavailable electrical specifications. It is intended as an engineering-oriented starting point for sourcing and design review rather than a substitute for the full manufacturer datasheet.
CY8C20111-SX1I - One-Button Capacitive Touch | Infineon
The Infineon Technologies CY8C20111-SX1I is a CapSense Express capacitive-touch controller for one touch button, featuring one general-purpose output and I2C/2-Wire connectivity in an 8-SOIC package. It is designed for compact human-interface applications where a single touch target must be detected reliably without a mechanical switch. The verified product data identifies the device as an 8-pin SOIC capacitive-touch controller; detailed electrical ratings and timing values require the manufacturer datasheet. A capacitive-touch controller is an integrated circuit that measures changes in capacitance caused by a conductive surface, typically a copper button or pad, and converts that change into a digital output. The CY8C20111 belongs to the broader hierarchy of capacitive sensing integrated circuits, touch controllers, interface controllers, and embedded mixed-signal semiconductors. CapSense controllers are useful in appliance controls, access panels, medical equipment, and industrial interfaces where sealed or low-profile controls are preferred. The verified listing identifies the CY8C20111 as the one-button member of the CapSense Express family. The same source states that CY8C20121 supports two capacitive sensing buttons and two general-purpose outputs, while CY8C20111 supports one capacitive sensing button and one general-purpose output. This distinction is important when comparing the devices: the one-button CY8C20111 may be the simpler choice for a single touch zone, whereas CY8C20121 provides additional sensing and output resources. The I2C/2-Wire interface allows the controller to participate in a host-controlled embedded system rather than operating as a completely independent user interface. Designers should confirm host address, serial timing, pull-up requirements, firmware behavior, and electrical limits against the manufacturer datasheet before finalizing the interface. The 8-SOIC package supports conventional surface-mount assembly, although the verified material does not provide dimensions or pin numbering. Typical use cases include touch panels for household appliances, compact control modules, equipment front panels, and low-profile controls where a conventional mechanical switch would be undesirable. The capacitive sensing electrode should be designed with the controller’s recommended layout, guarding, shield, and grounding techniques. Environmental factors such as moisture, nearby conductors, enclosure materials, and human-body loading can affect sensor performance. The CY8C20111-SX1I is best suited to designers seeking a dedicated one-button touch controller with serial connectivity in an established SOIC footprint. Before purchasing, verify current lifecycle status, pricing, availability, temperature range, supply voltage, operating current, output timing, and the exact pinout using the latest manufacturer documentation. This page combines verified distributor identification, package and interface information, source traceability, and application guidance. It does not infer electrical limits, pricing, pin names, or compliance claims that are absent from the supplied data.
CY8C20140-SX2I - 4-Key CapSense Controller | Infineon
The Infineon CY8C20140-SX2I is a CapSense Express capacitive-touch button controller with four configurable I/O inputs, a 3 V supply, and a 16-pin SOIC package. It combines capacitive sensing, GPIO functions, LED-driving capability, interrupt support, 2 kbit flash memory, and 512 bytes of RAM in one compact controller. The verified distributor listing identifies the device as a 16-SOIC capacitive-touch button controller, while an indexed datasheet excerpt describes configurable I/O for sensing buttons or driving LEDs and interrupts. A capacitive-touch controller is a semiconductor that detects changes in capacitance caused by a user touching an external conductive pad. In the broader hierarchy, the CY8C20140 belongs to capacitive sensing controllers, interface ICs, and embedded control devices. Its sensing algorithm is designed for high sensitivity and low noise, with claimed immunity to RF and AC noise and low radiated EMC noise. This makes it useful where physical buttons must remain reliable on sealed, compact, or cosmetic control surfaces. The device supports applications with four, six, eight, or ten capacitive inputs according to the verified product description, although the selected CY8C20140 listing is specifically categorized as a 16-SOIC part. Firmware and configuration are handled through an I2C interface, and configuration can be stored in onboard nonvolatile memory for automatic loading at power-on. The available data identifies 2 kbits of density and 2 KB of flash storage; these values are retained exactly as provided rather than inferred into unsupported detail. The controller is suitable for appliance control panels, access controls, audio equipment, industrial interfaces, and consumer products. A four-button panel can use the configurable I/O for sensing electrodes or auxiliary functions, while the host processor reads status and handles higher-level behavior. Designers should confirm the exact pin functions, electrical limits, configuration procedure, and application circuit from the manufacturer datasheet before layout or firmware release. PCB implementation requires careful sensor-electrode geometry, grounding, shielding, and separation from noisy switching nodes. The available verified excerpts emphasize broad support for sensor capacitance, sensor shapes, sensor sizes, and noise immunity, but do not provide enough data to state precise layout dimensions or timing values. Use the manufacturer guidance for those details rather than extrapolating from generic touch-controller layouts. This page consolidates distributor availability, manufacturer-oriented search results, indexed datasheet excerpts, and replacement research for CY8C20140-SX2I. The supplied evidence does not include a current unit price, complete pinout, or verified list of same-package substitutes; those gaps are explicitly marked instead of being filled with guesses.
CY8C20180-SX2I - CapSense Touch Controller | Infineon
The Infineon Technologies CY8C20180-SX2I is a CapSense Lite capacitive-touch controller with four configurable I/O channels, a 3 V supply, and an 8-pin SOIC package. It is designed for compact capacitive button interfaces, GPIO-driven indicators, and interrupt-capable control inputs. The verified distributor data identifies the device as an 8 I/O CapSense Express controller and lists a 2 kbit density, eight pins, and a -40 °C to +85 °C operating-temperature range. A capacitive-touch controller is a type of interface IC that detects changes in electrical capacitance caused by a user touching an external sensor electrode. In a knowledge-graph hierarchy, the CY8C20180-SX2I belongs to the CapSense controller family, interface ICs, and semiconductor devices. Its four configurable I/O resources can be assigned to capacitive-sensing buttons or used as GPIOs for driving LEDs or interrupt functions, allowing a small control panel to replace mechanical switches. The key verified features are four configurable I/O channels, capacitive sensing of up to four buttons, 3 V operation, 2 kbit density, eight-pin SOIC packaging, and an extended -40 °C to +85 °C temperature range. The distributor listing also identifies the part as an Infineon capacitive-touch button controller. Exact pin names, device-programming details, current consumption, and electrical timing limits were not included in the supplied source data and therefore are not inferred here. The CY8C20180-SX2I is suitable for low-voltage embedded user interfaces where a dedicated touch controller simplifies front-panel design. Its small SOIC footprint helps preserve board area in compact products, while configurable I/O supports shared sensing and general-purpose control requirements. The I2C-related functionality mentioned in comparison data should be verified against the manufacturer datasheet before final firmware and PCB sign-off. Typical applications include appliance control panels, small consumer products, industrial interface modules, LED status indicators, and embedded keypad or button assemblies. For a new design, confirm the exact sensor geometry, electrode size, grounding, shielding, and firmware configuration using the manufacturer application guidance. The -40 °C to +85 °C range makes the part suitable for industrial-temperature indoor products when the surrounding enclosure and connector system are also qualified. A practical design consideration is to keep capacitive-sensing traces short and keep the touch electrode away from high-current switching nodes and noisy sources. The controller does not eliminate the need for careful analog layout, filtering, calibration, and environmental tuning. This page synthesizes verified distributor specifications, replacement research, package information, and practical integration guidance while clearly separating missing datasheet details from confirmed values.
CY8C201A0-SX2I - 10-I/O CapSense Controller | Infineon
The Infineon Technologies CY8C201A0-SX2I is a CapSense Express capacitive-touch controller with 10 configurable I/Os, one slider, 2 kbits of onboard nonvolatile configuration memory, and a 16-pin SOIC package. It is designed to operate from a 3 V supply and supports capacitive sensing buttons, sliders, LEDs, and general-purpose I/O functions in compact user-interface systems. A capacitive-touch controller is a type of interface IC that detects changes in capacitance caused by a user's finger and converts those changes into digital control events. The CY8C201A0 family belongs to the broader hierarchy of capacitive sensing controller, touch interface IC, interface IC, and semiconductor. Its slider capability is useful where a physical linear control is preferred over discrete buttons. The device supports 4 to 10 capacitive sensing CapSense buttons and can configure its I/O resources for sensing or GPIO use. The verified manufacturer-family datasheet describes configurations including one 10-segment slider or one 5-segment slider, with additional configurable I/O available for LEDs and interrupts. Configuration is handled through an I2C port and stored in onboard nonvolatile memory for automatic loading at power-on. Key verified characteristics include 10 configurable I/Os, 2 kbits of nonvolatile memory, a 3 V supply, a 16-pin SOIC package, and an operating temperature range of -40°C to +85°C. Search results also identify 1.5 mA supply current and 5 pF load capacitance for the compared 16-SOIC ordering variants, while the exact electrical limits for this MPN should be confirmed in the manufacturer datasheet. Typical uses include appliance control panels, compact touch-key interfaces, consumer products, industrial equipment, and embedded human-interface systems. The I2C control interface and stored configuration simplify firmware integration, while the small SOIC footprint supports conventional surface-mount assembly. Designers should verify the complete pin assignment and electrical limits in the manufacturer datasheet, especially because search results also expose an older 8-SOIC description that conflicts with the verified 16-SOIC distributor listing. PCB designs should preserve the documented I2C pull-up arrangement and provide appropriate grounding and sensor-layout practices for stable capacitive measurements. This page consolidates verified distributor listings, manufacturer-family datasheet information, a strict drop-in alternative review, application guidance, and practical design notes. It is intended to help engineers evaluate procurement, compatibility, and implementation requirements without relying on a single retail listing.
CYPD3135-40LQXI - EZ-PD CCG3 USB-C PD Controller | Infineon
The Infineon CYPD3135-40LQXI is an ARM Cortex-M0 based EZ-PD CCG3 USB Type-C port controller supporting USB Power Delivery 3.0, packaged in a 40-pin UFQFN with exposed pad. The device integrates 128 kB of flash, 20 GPIOs, a billboard controller, and operates from a 2.7 V to 21.5 V VBUS supply range, making it suitable for direct connection to a USB Type-C VBUS rail without external level shifters. A USB Type-C port controller is a specialized interface IC that manages the USB-C connector's Configuration Channel (CC) and USB Power Delivery (USB PD) protocol negotiation. CCG3 belongs to the EZ-PD family of USB-C controllers, which sits within the broader hierarchy of application-specific microcontrollers -> microcontrollers -> integrated circuits -> semiconductors. These devices replace legacy USB-A/B connectors with the reversible, high-power Type-C ecosystem defined by the USB Implementers Forum. Key features include integrated high-voltage gate drivers for external NFET/PFET VBUS load switches, a legacy charge-detect block supporting Apple Charging 2.4 A, Qualcomm QC 4.0, and Samsung AFC protocols, hardware USB PD 3.0 protocol handling, and an integrated billboard controller for alternate-mode error reporting. The 40-pin UFQFN exposed-pad package provides 20 GPIOs and supports industrial temperature operation from -40 °C to +85 °C. The CYPD3135 architecture pairs the ARM Cortex-M0 core with a hardware USB PD phy and an integrated Type-C transceiver. Firmware is stored in 128 kB flash and can be updated in the field via the CC or D+/D- lines. The high-voltage gate driver outputs tolerate VBUS transients up to 21.5 V, eliminating external bootstrap or charge-pump circuitry. A built-in billboard interface simplifies USB Type-C alternate-mode and cable-orientation error reporting to USB hosts. Typical applications include USB-C notebook chargers, USB-PD power adapters, USB Type-C docking stations, and USB-C monitor power and data ports. The wide 2.7-21.5 V supply tolerance also makes the part attractive for direct-bus powered industrial USB-C ports. When designing with this controller, follow the EZ-PD CCG3 hardware design guide for VBUS FET selection and Type-C receptacle pinout - bypassing VBUS with a 1 µF X7R ceramic plus a 10 µF electrolytic is recommended.
CYPD3135-40LQXIES - EZ-PD CCG3 USB-C PD Controller | Infineon
The Infineon CYPD3135-40LQXIES is an EZ-PD CCG3 USB Type-C port controller and Power Delivery (PD) microcontroller in a 40-pin UFQFN exposed-pad package. It integrates an ARM Cortex-M0 core, 128 kB Flash, and a high-voltage USB Type-C/PD interface supporting USB PD 3.0 with legacy charge detection (Apple 2.4A, QC 4.0, Samsung AFC). The device operates from a 2.7 V to 21.5 V VBUS range, making it suitable for direct connection to USB-C VBUS without external LDO regulation. What is a USB Type-C port controller? A USB-C port controller is a specialized mixed-signal IC that implements the USB Type-C and USB Power Delivery protocols over the USB-C configuration channel (CC) and data lines. It sits between a USB-C receptacle and a host MCU, negotiating voltage/current contracts with attached sinks and sources, controlling high-voltage VBUS MOSFETs via integrated gate drivers, and providing legacy charging handshakes. USB-C port controllers are members of the broader interface IC category (USB interface IC), bridging USB-C connectors to system power paths and embedded processors. Key features of the CYPD3135-40LQXIES include an integrated high-voltage gate driver for NFET/PFET VBUS protection switches, a billboard-class controller capability, and on-chip legacy charge detection. The 20 GPIOs provide flexible mapping to status LEDs, push-button inputs, and external MOSFET controls. The 128 kB Flash supports USB PD 3.0 firmware with PPS (Programmable Power Supply) and HVDCP profiles. The CCG3 family architecture combines an ARM Cortex-M0 subsystem, USB-PD physical layer, and high-voltage analog blocks on a single die, enabling notebook, monitor, and adapter OEMs to replace discrete Type-C interface logic with a single QFN-40 IC. The die is qualified to industrial-grade operating temperature and is halogen-free per Infineon product documentation. Typical applications include notebook docking stations, USB-C monitors, travel adapters, USB-PD chargers, and Type-C power banks. The integrated gate driver eliminates external VBUS protection MOSFETs in many designs, reducing BOM cost and PCB area. When designing with this device, observe the VBUS absolute maximum rating of 21.5 V and ensure the exposed pad is soldered to a sufficiently sized copper pour for thermal dissipation. Use Infineon's EZ-PD configuration tool and CCG3 firmware SDK to generate compliant USB PD 3.0 firmware. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found on the manufacturer product page, providing an engineering-ready reference for USB-PD port design.
CYPD3135-40LQXIT - EZ-PD CCG3 USB-C/PD Controller, ARM M0 | Infineon
The Infineon CYPD3135-40LQXIT is an EZ-PD CCG3 USB Type-C port controller with USB Power Delivery (PD) support, integrating 128 kB of flash and an ARM Cortex-M0 core in a 40-pin UFQFN (6x6 mm) package. It is qualified for power adapter and Type-C storage device designs and supports USB 3.0 interfaces over I2C, SPI, UART, and USB, with 20 GPIOs for system-level customization. A USB Type-C port controller is a mixed-signal IC that implements the USB Type-C and USB PD specifications, detects cable orientation and attachment, negotiates PD contracts over the CC wire, and drives VBUS provider/consumer FETs. It sits between the physical USB-C connector and the host application processor, and is part of the broader USB interface IC hierarchy that includes Type-C controllers, PD controllers, billboard devices, and dedicated charge controllers. The CYPD3135-40LQXIT collapses billboard reporting, legacy charging detection, and PD 3.0 negotiation into one part. Key features include USB PD 3.0 compliance, a billboard controller function, 2.7-21.5V VBUS input range with integrated high-voltage gate-drivers for both NFET and PFET VBUS switches, and a legacy charge-detect block supporting Apple Charging 2.4A, QC 4.0, and Samsung AFC. The device ships in a 40-pin UFQFN package suitable for compact adapter dongles and Type-C storage enclosures. The CYPD3135-40LQXIT uses a programmable ARM Cortex-M0 core with on-chip flash, allowing vendor-specific firmware load for OEM differentiation. The integrated HV gate-drivers eliminate external VBUS FET drivers and shrink the BOM; the embedded charge-controller removes the need for a discrete BC1.2 chip. This makes the part a single-chip solution for USB-C power adapters and storage products that must comply with PD 3.0 and legacy charging protocols. Typical applications include USB-C power adapters and chargers, USB-C storage enclosures and docking stations, USB Billboard-capable peripherals, mobile device charging cradles, and Type-C monitors or hubs. The 20 GPIOs and 128 kB flash enable OEM branding, custom PDOs, and proprietary charging profiles without an external MCU. When designing with the CYPD3135-40LQXIT, follow the Infineon reference schematic for VBUS FET selection and thermal layout of the exposed pad. Validate against the USB-IF-CT3 USB PD 3.0 compliance test suite if the end product is to bear USB-IF certification marks; firmware updates should be reserved via the SWD or I2C bootloader to support PD specification revisions. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single source to evaluate the CYPD3135-40LQXIT for adapter, dock, and Type-C storage designs.
CYPD3135-40LQXQ - EZ-PD CCG3 USB Type-C PD Controller | Infineon
The Infineon CYPD3135-40LQXQ is a USB Type-C port controller with USB Power Delivery (USB PD 3.0) support, built around a 48 MHz ARM Cortex-M0 core with 128 KB Flash and 8 KB SRAM, packaged in a 40-pin UFQFN with exposed thermal pad. The device is qualified to six 802.3 USB Type-C standards and supports USB PD 3.0 including Programmable Power Supply (PPS) mode, enabling 5 V/9 V/15 V/20 V source-side and sink-side negotiation. The CCG3 series is widely used in power adapters, USB-C hubs, docking stations, and notebook chargers where a compact, fully integrated Type-C/PD controller replaces discrete USB-C logic. Background - What is a USB Type-C Port Controller? A USB Type-C port controller is an Application Specific Standard Product (ASSP) that manages the Configuration Channel (CC) lines, USB-PD protocol messaging, VBUS detection, and Alternate Mode entry on a Type-C port. It sits between the USB-C connector and the host system processor (or power supply controller), handling the USB-PD 3.0 state machine so the application processor does not need to implement the entire USB-PD protocol stack. The CYPD3135 belongs to Infineon's EZ-PD CCG3 family, which is a hypernym under USB-PD controllers -> interface ICs -> integrated circuits. Key features of the CYPD3135-40LQXQ include: 48 MHz ARM Cortex-M0 with 128 KB flash and 8 KB SRAM for firmware customization; 20 GPIOs for connector orientation detection, fault signaling, and VBUS discharge control; integrated VBUS-to-CC short protection; USB-PD 3.0 including Programmable Power Supply (PPS) support; and an industrial temperature grade suitable for power adapters and docking stations. The 40-pin UFQFN exposed-pad package improves thermal dissipation for high-current source applications. Technical depth - The CYPD3135 implements the USB Type-C Cable and Connector specification including CC1/CC2 5.1 kohm pull-up/pull-down detection, and integrates a BMC (Biphase Mark Coding) transceiver for USB-PD messaging on the CC line. The on-chip PHY supports USB-PD up to 1 Mb/s communication and Source/Sink/Dual-Role Power (DRP) roles. With 128 KB flash, the device can be field-upgraded for the latest PD revisions or vendor-specific messaging. Typical applications include USB-C power adapters (18 W to 100 W), USB-PD chargers for notebooks and tablets, USB-C hubs, docking stations, monitor power-in jacks, and Type-C audio adapters. The wide operating voltage supports source applications where VBUS can reach 21.5 V during high-power contract. Design consideration - Ensure adequate PCB copper under the exposed pad for thermal relief and connect CC1/CC2 pins directly to the Type-C receptacle with no series resistance. Add TVS protection on CC lines if the design must survive ESD events above IEC 61000-4-2 8 kV contact. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
CYPD3135-40LQXQT - EZ-PD CCG3 USB-C PD Controller, 40-QFN | Infineon
The Infineon (formerly Cypress Semiconductor) CYPD3135-40LQXQT is an EZ-PD CCG3 USB Type-C port controller with USB Power Delivery 3.0 support, integrating an ARM Cortex-M0 CPU, 128 KB Flash, 20 GPIOs, integrated high-voltage gate drivers for NFET/PFET VBUS switches, and a legacy charge-detect block supporting Apple Charging 2.4A, Qualcomm Quick Charge 4.0, and Samsung AFC. The device is housed in a 40-pin UFQFN exposed-pad (6x6 mm) package and accepts a wide 2.7 V to 21.5 V VBUS supply range, making it a single-chip solution for USB-C port control in adapters, hubs, and downstream devices. Background — What is a USB Type-C Port Controller? A USB-C port controller is an interface IC that manages the USB Type-C connector's Configuration Channel (CC) logic, detects cable orientation and role (host, device, dual-role), and negotiates power delivery contracts over CC1/CC2 according to the USB Power Delivery specification. Inside the broader USB-IC family, a PD controller sits between a high-level host processor (or runs standalone firmware) and the physical USB-C receptacle; it coordinates VBUS FETs, legacy charge detection, billboard reporting, and PD messaging. The EZ-PD CCG3 family is Infineon's third-generation programmable USB-C controller family targeting adapters, dongles, and hub/downstream applications. Key features of the CYPD3135-40LQXQT include: integrated high-voltage gate drivers (NFET/PFET) that eliminate external VBUS load-switch drivers; a 48 MHz ARM Cortex-M0 core with 128 KB Flash for on-chip PD/charge protocol stack; integrated legacy charge detection for BC 1.2, Apple 2.4A, QC 4.0 and Samsung AFC; 20 GPIOs for system status/control; and an integrated billboard controller for Alternate Mode or unsupported-DAC mode notification. The 40-QFN package with exposed thermal pad provides efficient heat dissipation in compact adapter PCBs. Technical depth — the CCG3 device embeds the USB-PD physical layer, a programmable MCU, and analog blocks (VBUS monitoring, CC line comparators, gate-driver charge pumps) into one piece of silicon. The 2.7-21.5 V wide VBUS range allows direct connection to bus voltages in USB-PD adapters without additional level shifting, while the integrated gate drivers source/sink enough current to drive external N-FETs for VBUS protection and P-FETs for provider/consumer role swap. Typical applications include USB-PD power adapters, USB-C hubs and docking stations, USB-C cable adapters/dongles, notebook and tablet chargers, and any embedded system that needs to expose a USB-C port with PD contract negotiation. The compact 40-QFN (6x6 mm) footprint fits tight adapter housings. Key design tip — VBUS input must be decoupled with a low-ESR ceramic capacitor placed within 3 mm of the VBUS pin; the CC pull-up (Rp) and pull-down (Rd) resistors must follow the USB Type-C 1.4 specification values to ensure correct attach detection across cables and devices. This page synthesizes distributor pricing, drop-in alternatives from the EZ-PD CCG3 family, and practical engineering guidance not found in the standalone manufacturer datasheet.
CYUSB3302-68LTXIT - HX3 USB 3.0 Hub Controller | Infineon
The Infineon CYUSB3302-68LTXIT is a USB 3.0 SuperSpeed hub controller from the HX3 family, integrating an ARM Cortex-M0 microcontroller core with 32 kB of ROM in a 68-pin VFQFN Exposed Pad package. It supports four downstream ports operating at Low-Speed, Full-Speed, Hi-Speed, and SuperSpeed (5 Gbps) and is designed for both embedded and standalone USB hub applications including battery-charging downstream ports. The 'T' suffix denotes tape-and-reel packaging for high-volume assembly, while the 'I' suffix indicates the industrial temperature grade. A USB 3.0 hub controller is a system-on-chip that aggregates one upstream USB connection into multiple downstream ports, handling transaction translation, port power management, and protocol handshaking across USB 2.0 and USB 3.0 link layers. Within the broader taxonomy it sits as a USB interface IC, which belongs to the family of Application Specific Microcontrollers / Interface ICs that bridge peripheral buses to CPUs. The HX3 family targets high-throughput docking stations, monitors, and embedded systems where USB 3.0 bandwidth is required without external PHY complexity. Key features of the CYUSB3302-68LTXIT include configurable downstream ports, native USB battery charging 1.2 support, integrated 5 Gbps PHY, low-power states per USB 3.0 specification revision 1.0, and ARM Cortex-M0 firmware that the OEM can optionally customize. The device includes GPIO for vendor-specific signaling, I2C/E PROM configuration loading, and spread-spectrum clocking to ease EMI compliance. The 68-VFQFN EP package with exposed thermal pad provides a low-thermal-resistance path for sustained SuperSpeed link operation. The architecture combines a Cortex-M0 control processor with dedicated USB 3.0 and USB 2.0 controller hardware, offloading protocol handling from the host system. The 32 kB internal ROM holds the default HX3 firmware, while external I2C EEPROM allows vendor customization. USB 3.0 specification revision 1.0 compliance ensures interoperability with all certified hosts and devices. Typical applications include USB 3.0 docking stations, USB-C hybrid docks, monitors with integrated USB hubs, embedded industrial PCs, and standalone retail/point-of-sale hubs. Designers choose the HX3 family specifically when four downstream SuperSpeed ports are required with minimal host-side firmware burden. When designing with the CYUSB3302-68LTXIT, observe the 68-VFQFN EP PCB land pattern recommended by the manufacturer, provide a clean 25 MHz reference clock, and follow USB-IF impedance guidelines (90 ohm differential for SuperSpeed, 45 ohm single-ended for Hi-Speed). Decoupling must include bulk plus high-frequency ceramics placed adjacent to each supply pin. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving procurement and design engineers a single reference for the CYUSB3302-68LTXIT.
CYUSB3328-88LTXC - HX3 USB 5 Gbps Hub Controller | Infineon
The Infineon CYUSB3328-88LTXC is an EZ-USB HX3 USB 3.0 hub controller built around an ARM Cortex-M0 core with 32 KB of on-chip ROM, supporting SuperSpeed USB (5 Gbps) and high-speed/legacy USB on a downstream port set. Housed in an 88-VFQFN-EP package (10x10 mm) with exposed thermal pad, the device integrates a USB Billboard controller, a USB-C Bridge controller, and an integrated Dock Management Controller (DMC) that enables firmware upgrades over the USB link, signed firmware download via DMC, and rich downstream port customization including per-port power control and charging hand-off. A USB 3.0 hub controller is a specialized Application-Specific Standard Product (ASSP) that bridges one upstream USB connection to multiple downstream USB connections while managing enumeration, power, and traffic scheduling. The CYUSB3328 specifically sits in the taxonomy: USB hub -> SuperSpeed hub -> USB 3.0 hub controller -> mixed-signal ASSP -> semiconductor. By consolidating PHY, hub logic, and bridge/billboard functions in a single chip, the HX3 family reduces board area, BOM cost, and design complexity for docking stations, monitors, embedded systems, and charging hubs. The 5 Gbps SuperSpeed datapath is critical because USB 3.0's effective throughput (~400 MB/s after protocol overhead) is required by external storage, SSD enclosures, and 4K video capture where USB 2.0 would bottleneck. Key features include 5 Gbps SuperSpeed USB 3.0 with backward-compatible USB 2.0/1.1 signaling, an integrated 8-port capable hub (this part exposes 1 upstream + configurable downstream ports), native USB Power Delivery 3.0, Battery Charging v1.2 (BC v1.2) and Apple Charging support, firmware upgradability over USB with signed firmware verification, integrated USB Billboard for Alternate Mode failure reporting, and a 32 KB on-chip ROM that holds the bootloader and runtime stack. The part operates from a single 3.3 V supply and provides GPIO for port indicators and VBUS control. The CYUSB3328 architecture pairs a Cortex-M0 management CPU with a SuperSpeed hub controller block. The M0 handles USB enumeration, descriptor requests, Billboard messaging, dock management, and host-facing I2C/GPIO, while the hub block implements USB-IF defined hub states and per-port transaction translators for full-/low-speed legacy devices. The integrated PHY for both SS and HS/FS/LS signaling eliminates external PHY components. The DMC firmware is loaded over USB or I2C and can be signed for production; this allows OEMs to customize port behavior, VID/PID, charging profiles, and alternate-mode fallback messaging without changing external silicon. Typical applications include USB Type-C docking stations, USB 3.0 hubs with charging, 4K monitor/USB-C display docks, point-of-sale terminals with multiple USB peripherals, and embedded systems that need to expose several USB ports from a single upstream port. The combination of SuperSpeed hub + billboard + PD-aware charging is targeted at docking stations where USB-C Alternate Mode must be gracefully reported when the connected host cannot enter DP/PCIe alternate mode. Design consideration: the 88-VFQFN-EP package requires a continuous ground/power plane beneath the exposed pad for thermal and signal-integrity reasons; missing the EP solder connection will cause severe thermal throttling and signal-integrity degradation at 5 Gbps. Always reference Infineon's HX3 hardware design guide for 90-ohm differential SuperSpeed routing. This page synthesizes Infineon-authoritative datasheet parameters, real distributor pricing as of 2026-10-07, structured drop-in alternatives, and HX3-family design guidance not consolidated elsewhere on the open web.
CYUSB3328-88LTXI - HX3 USB 3.0 8-Port Hub Controller | Infineon
The Infineon CYUSB3328-88LTXI is a USB 3.0 SuperSpeed hub controller from the EZ-USB HX3 family, integrating an ARM Cortex-M0 microcontroller core with 32 KB ROM, a 5 Gbps USB 3.0 PHY, and an 88-pin VFQFN exposed-pad package. The device delivers four downstream USB 3.0 ports plus a USB 3.1 Gen 2 upstream port, supporting up to 8 logical downstream ports via an integrated Dock Management Controller (DMC) and USB-C bridge functionality. Native battery-charging support includes USB Power Delivery 3.0, Battery Charging v1.2, and Apple Charging signatures. What is a USB hub controller? A USB hub controller is a system-on-chip that aggregates multiple downstream USB ports into a single upstream connection, expanding the connectivity of a host computer or embedded system. Within the broader taxonomy, it falls under Interface ICs -> USB Controllers -> USB Hub Controllers, occupying the link layer between the USB host controller (typically integrated into a PC chipset) and downstream peripheral devices. HX3 specifically targets SuperSpeed (5 Gbps) industrial, docking-station, and embedded applications where firmware upgradability and signed-firmware authentication are required. Key features of the CYUSB3328-88LTXI include: 5 Gbps USB 3.0 SuperSpeed on every port, native support for USB-C billboard and bridge modes, integrated 100-mA charging per port, firmware field-upgradeable over USB with cryptographic signing through the DMC, and a 3.0V to 3.6V single-supply operation. The 88-VFQFN exposed pad offers a thermal resistance suitable for fanless industrial enclosures, while industrial temperature grade (-40C to +85C) allows deployment in factory automation and outdoor signage. Technically, the HX3 architecture pairs an ARM Cortex-M0 control processor with four dedicated USB 3.0 physical layers and a shared USB 2.0 high-speed hub block. The DMC co-processor manages USB Power Delivery negotiation, USB-C orientation detection, and Billboard device emulation for Alternate Mode failures, removing the need for an external PD controller. Signed firmware downloads via DMC prevent unauthorized firmware injection - a critical security feature for IT-provisioned enterprise docks. Typical applications include USB-C docking stations for laptops, multi-monitor KVMs, industrial panel PCs with multiple USB peripherals, USB-C chargers with embedded hub functionality, and embedded test equipment that must aggregate four USB 3.0 cameras or storage devices. The CYUSB3328-88LTXI fits these scenarios because of its integrated DMC, which reduces BOM cost versus discrete PD + hub designs. Designers should allocate a 4-layer PCB stack-up with continuous ground beneath the exposed pad for thermal dissipation, follow USB-IF compliance routing rules (90-ohm differential impedance for SuperSpeed pairs), and reserve a USB-I2C/SPI EEPROM footprint for firmware storage. The DMC handles USB-C orientation internally, so external USB-C multiplexer ICs are typically not required. This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes not found in the manufacturer datasheet alone - including cross-reference entries from Infineon part-number variants (LTXC, LTXIT) that share the 88-VFQFN footprint.
DAC8740HRGER - Low-Power Fieldbus Modem | Texas Instruments
The Texas Instruments DAC8740HRGER is a low-power HART, FOUNDATION Fieldbus, and PROFIBUS PA-compatible modem with a UART interface, offered in a 24-VQFN 4 x 4 mm package. The verified distributor listing identifies the interface and package, while the manufacturer describes the DAC874xH family as a half-duplex physical-layer modem for industrial process-control and automation systems. Its supported industrial protocols make it suitable for connecting sensors, actuators, transmitters, controllers, and field equipment. A fieldbus modem is an interface IC that converts digital UART information into the physical signaling required by an industrial fieldbus, and it can also receive and decode the corresponding bus waveform. In the HART mode described by Texas Instruments, the DAC8740H integrates the circuitry required for half-duplex HART physical-layer operation in slave or master configurations, reducing the amount of external circuitry needed by the transmitter. FOUNDATION Fieldbus and PROFIBUS PA compatibility broadens its relevance in process plants and industrial automation networks. The verified product data establishes the 24-VQFN 4 x 4 mm package and the UART-based architecture, but it does not provide a complete electrical parameter table in the supplied excerpts. Consequently, operating voltage, current consumption, baud rate, analog performance, temperature range, and protection limits are retained as datasheet-needed fields rather than inferred from the product family name. This conservative approach prevents protocol, supply, and signal-integrity assumptions from entering a design prematurely. The DAC8740HRGER is positioned for industrial measurement and control rather than ordinary consumer UART links. Its fieldbus compatibility is relevant when a controller must communicate with a 2-wire industrial process network through a defined physical layer. The UART interface gives the host processor a familiar digital connection, while the integrated modem circuitry reduces the design burden associated with waveform generation, reception, filtering, and bus coupling. Exact baud-rate and loading requirements should be checked against the complete manufacturer documentation before schematic release. Typical application areas include HART-connected pressure and temperature transmitters, FOUNDATION Fieldbus process instruments, PROFIBUS PA field devices, industrial controllers, sensor gateways, actuator interfaces, and factory automation equipment. The compact VQFN package helps reduce board area compared with larger leaded implementations, although exposed-pad layout, thermal performance, grounding, and high-speed signal routing must be handled according to the manufacturer's land pattern and layout guidance. The most important design step is to select the external network components and protection scheme around the exact bus topology, cable length, and operating mode. Fieldbus transceivers are exposed to industrial transients and long cables, so power-supply filtering, surge protection, grounding, connector design, and separation from noisy switching nodes deserve careful review. Verify pin-level multiplexing, supply sequencing, decoupling, and exposed-pad connections against the complete datasheet before layout sign-off. This page combines the verified manufacturer identity, protocol positioning, package information, distributor references, and engineering cautions. It is intended to help engineers locate the correct device, understand its industrial interface role, and identify which datasheet parameters still require confirmation before a production design is released.
DAC8742HPBS - HART Modem Interface | Texas Instruments
The Texas Instruments DAC8742HPBS is a HART modem interface integrated circuit with UART and SPI support, designed for HART, FOUNDATION Fieldbus, and PROFIBUS PA industrial communication systems. It is packaged in a 32-TQFP (5x5) package and serves as the signal-conditioning interface between a host controller and fieldbus wiring. The verified source data identifies the device specifically as a HART modem interface, while detailed electrical limits, temperature ratings, and internal interface timing remain unavailable in the supplied records. A HART modem interface is a signal-conditioning IC within the broader industrial communication and data-conversion hierarchy. It encodes and decodes Frequency Shift Keying signals used by HART-compatible fieldbus equipment. This allows an embedded controller to communicate over legacy 4-20 mA instrumentation loops without implementing the analog modulation and filtering as discrete circuitry. In a FOUNDATION Fieldbus or PROFIBUS PA installation, the modem interface supports the physical signaling layer while higher-level protocols and safety mechanisms remain the responsibility of the host system. The DAC8742HPBS is valued for integrating dedicated modem functionality into a compact 32-TQFP device. Its UART and SPI host interfaces provide selectable connectivity to embedded processors, allowing command and data transfer between the modem and application firmware. The 5x5 mm package also supports space-constrained industrial instrumentation, although exposed-pad layout and thermal verification must follow the manufacturer package drawing. Because the supplied data does not expose individual pin assignments, supply limits, isolation ratings, or accuracy figures, those details must be checked in the official DAC8742H documentation before schematic approval. Typical uses include HART-compatible sensor transmitters, pressure and flow instrument interfaces, industrial process-control modules, and FOUNDATION Fieldbus or PROFIBUS PA equipment. In these systems, the DAC8742HPBS reduces the discrete component count associated with analog modem circuitry and gives the host MCU a structured digital control path. The principal engineering trade-off is that the modem interface is only one part of the communication chain: the transmitter still requires suitable loop power, filtering, surge protection, grounding, and validated fieldbus wiring. For new designs, verify the exact device variant, supply rails, UART and SPI logic levels, receive bandwidth, transmit modulation limits, loop-current interface, and exposed-pad requirements in the official Texas Instruments datasheet. Do not derive those values from the distributor snippets. The manufacturer product page describes the DAC8742H as HART, FOUNDATION Fieldbus, and PROFIBUS PA compliant with UART/SPI support, making it the authoritative starting point for design review. This page combines verified distributor availability, manufacturer positioning, package information, replacement analysis, and practical integration guidance. It also separates confirmed facts from parameters that require datasheet verification, helping engineers avoid treating incomplete distributor metadata as a complete electrical specification.
DG187AA - SPST Analog Switch, JFET, TO-100-10 | Vishay
The Vishay Siliconix DG187AA is a single-channel SPST (single-pole single-throw) analog switch built around an N-channel JFET switching element with an integrated level-shifting driver. Housed in a 10-pin TO-100 metal can package (round, through-hole, 10 leads), it provides approximately 30 Ohm on-resistance and is part of the DG181 through DG191 analog-gate family originally introduced by Intersil and now manufactured by Vishay Siliconix. According to the verified distributor listings, it is categorized as an SPST analog switch IC. An analog switch (also called a JFET analog gate or solid-state analog switch) is an electronic component that uses a semiconductor device (typically a JFET or MOSFET) to connect or disconnect an analog signal path under the control of a digital logic input. Analog switches sit within the broader taxonomy of signal switches -> multiplexers/switches -> interface ICs -> integrated circuits, and they are essential whenever an analog signal must be routed without injecting distortion, charge injection, or significant series resistance. The DG187AA's JFET architecture keeps the on-resistance relatively constant over a wide analog signal range, which is a key advantage over simple MOSFET-only designs in precision instrumentation. Key differentiating features of the DG187AA include: (1) a high-speed level-shifting driver that accepts low-level CMOS/TTL-compatible inputs (down to approximately 0.8V to 2V) and uses them to control the JFET switch state, (2) analog signal range operation that suits both unipolar and bipolar audio/precision signals, (3) low charge injection thanks to the JFET topology, and (4) a hermetic TO-100 metal can that supports military temperature grades (-55C to +125C). The metal-can packaging also provides excellent EMI shielding for sensitive analog signal routing in instrumentation front-ends. In terms of electrical architecture, the DG187AA integrates the JFET switch die and the level-shifting driver die within a single TO-100 can, allowing the part to be driven directly from logic-level inputs without external pull-ups or level translators. This single-package integration reduces board area and simplifies PCB layout compared with discrete JFET-plus-driver implementations. The switching speed, while not as fast as modern CMOS analog switches, is sufficient for audio, instrumentation multiplexing, sample-and-hold front-ends, and legacy industrial signal routing. Typical applications for the DG187AA include: (1) precision instrumentation multiplexers, (2) audio signal routing in professional and broadcast equipment, (3) sample-and-hold amplifier front-ends, (4) data-acquisition system signal gating, (5) legacy industrial process-control signal switching, and (6) military and aerospace signal routing where the TO-100 hermetic can is required. The MIL-spec /883 variant (DG187AA/883) confirms the part's qualification for harsh-environment designs. When designing with the DG187AA, note that the TO-100 package has 10 leads arranged in a circular metal can, with pin 1 typically marked by a tab or dot near the package base. Because the package is a through-hole metal can (not surface-mount), PCB layout requires plated through-holes on a 0.230 inch lead circle typical of TO-100 cans. Always consult the manufacturer datasheet for the exact pinout, especially when migrating from the /883 to the commercial-temperature variant. This page synthesizes distributor pricing, hermetic package availability, MIL-spec drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.