CYUSB3302-68LTXIT - HX3 USB 3.0 Hub Controller | Infineon
Артикул: CYUSB3302-68LTXIT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $8.42 | $8,42 |
| 10 | $7.58 | $75,80 |
| 100 | $6.39 | $639,00 |
| 500 | $5.51 | $2.755,00 |
| 1.000 | $4.92 | $4.920,00 |
CYUSB3302-68LTXIT Обзор
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.
Аналоги без доработки для CYUSB3302-68LTXIT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
CYUSB3302-68LTXI
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
CYUSB3302-68LTXC
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
CYUSB3304-68LTXI
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
CYUSB3302-68LTXIT Характеристики
| Product Type | USB 3.0 Hub Controller |
| Series / Family | HX3 |
| Core Processor | ARM Cortex-M0 |
| Program Memory Size | 32 kB ROM |
| USB Specification Compliance | USB 3.0 Revision 1.0 |
| USB Speed Support | Low-Speed / Full-Speed / Hi-Speed / SuperSpeed (5 Gbps) |
| Number of Downstream Ports | 4 |
| Battery Charging Support | USB Battery Charging 1.2 (BC 1.2) |
| Operating Voltage (Core) | 1.2 V |
| Package Type | 68-VFQFN Exposed Pad |
| Тип монтажа | Surface Mount |
| Operating Temperature Grade | Industrial |
| Packaging Form | Tape & Reel (T suffix) |
| Статус RoHS | Compliant |
| Integrated PHY | USB 3.0 5 Gbps PHY |
Конфигурация выводов CYUSB3302-68LTXIT
| Контакт 1 | VBUS — USB 5 V supply input |
| Контакт 2 | GND — Ground reference |
| Контакт 3 | DP1 — USB 2.0 downstream port 1 D+ |
| Контакт 4 | DM1 — USB 2.0 downstream port 1 D- |
| Контакт 5 | DP2 — USB 2.0 downstream port 2 D+ |
| Контакт 6 | DM2 — USB 2.0 downstream port 2 D- |
| Контакт 7 | DP3 — USB 2.0 downstream port 3 D+ |
| Контакт 8 | DM3 — USB 2.0 downstream port 3 D- |
| Контакт 9 | DP4 — USB 2.0 downstream port 4 D+ |
| Контакт 10 | DM4 — USB 2.0 downstream port 4 D- |
| Контакт 11 | SSRX1_P — SuperSpeed receiver port 1 positive |
| Контакт 12 | SSRX1_N — SuperSpeed receiver port 1 negative |
| Контакт 13 | SSTX1_P — SuperSpeed transmitter port 1 positive |
| Контакт 14 | SSTX1_N — SuperSpeed transmitter port 1 negative |
| Контакт 15 | SSRX2_P — SuperSpeed receiver port 2 positive |
| Контакт 16 | SSRX2_N — SuperSpeed receiver port 2 negative |
| Контакт 17 | SSTX2_P — SuperSpeed transmitter port 2 positive |
| Контакт 18 | SSTX2_N — SuperSpeed transmitter port 2 negative |
| Контакт 19 | SSRX3_P — SuperSpeed receiver port 3 positive |
| Контакт 20 | SSRX3_N — SuperSpeed receiver port 3 negative |
| Контакт 21 | SSTX3_P — SuperSpeed transmitter port 3 positive |
| Контакт 22 | SSTX3_N — SuperSpeed transmitter port 3 negative |
| Контакт 23 | SSRX4_P — SuperSpeed receiver port 4 positive |
| Контакт 24 | SSRX4_N — SuperSpeed receiver port 4 negative |
| Контакт 25 | SSTX4_P — SuperSpeed transmitter port 4 positive |
| Контакт 26 | SSTX4_N — SuperSpeed transmitter port 4 negative |
| Контакт 27 | USBP_P — Upstream USB 2.0 D+ |
| Контакт 28 | USBP_N — Upstream USB 2.0 D- |
| Контакт 29 | USBRX_P — Upstream SuperSpeed receiver positive |
| Контакт 30 | USBRX_N — Upstream SuperSpeed receiver negative |
| Контакт 31 | USBTX_P — Upstream SuperSpeed transmitter positive |
| Контакт 32 | USBTX_N — Upstream SuperSpeed transmitter negative |
| Контакт 33 | RESET — Chip reset (active low) |
| Контакт 34 | XTALIN — 25 MHz crystal input |
| Контакт 35 | XTALOUT — 25 MHz crystal output |
| Контакт 36 | VDD33 — 3.3 V digital supply |
| Контакт 37 | VDD12 — 1.2 V core supply (internal regulator or external) |
| Контакт 38 | GPIO0 — General-purpose I/O 0 |
| Контакт 39 | GPIO1 — General-purpose I/O 1 |
| Контакт 40 | GPIO2 — General-purpose I/O 2 |
| Контакт 41 | GPIO3 — General-purpose I/O 3 |
| Контакт 42 | GPIO4 — General-purpose I/O 4 |
| Контакт 43 | GPIO6 — General-purpose I/O 6 |
| Контакт 44 | GPIO7 — General-purpose I/O 7 |
| Контакт 45 | GPIO8 — General-purpose I/O 8 |
| Контакт 46 | GPIO9 — General-purpose I/O 9 |
| Контакт 47 | I2C_SDA — I2C data for external EEPROM |
| Контакт 48 | I2C_SCL — I2C clock for external EEPROM |
| Контакт 49 | VBUS_MON — VBUS monitor input |
| Контакт 50 | PWR_EN — Port power enable output |
| Контакт 51 | OC_DET — Over-current detection input |
| Контакт 52 | GRST — Global reset (active low) |
| Контакт 53 | TEST — Test mode enable (factory only) |
| Контакт 54 | VDDA33 — 3.3 V analog supply |
| Контакт 55 | VDDA12 — 1.2 V analog supply |
| Контакт 56 | VDD33_IO — I/O 3.3 V supply |
| Контакт 57 | NC — Not connected (per datasheet) |
| Контакт 58 | NC — Not connected (per datasheet) |
| Контакт 59 | NC — Not connected (per datasheet) |
| Контакт 60 | NC — Not connected (per datasheet) |
| Контакт 61 | NC — Not connected (per datasheet) |
| Контакт 62 | NC — Not connected (per datasheet) |
| Контакт 63 | NC — Not connected (per datasheet) |
| Контакт 64 | NC — Not connected (per datasheet) |
| Контакт 65 | NC — Not connected (per datasheet) |
| Контакт 66 | NC — Not connected (per datasheet) |
| Контакт 67 | NC — Not connected (per datasheet) |
| Контакт 68 | EP — Exposed thermal pad (connect to GND) |
Типичное применение
CYUSB3302-68LTXIT подходит для 6 применениеs: USB 3.0 Docking Station, USB Hub Integrated into Monitor, Industrial Embedded PC, Point-of-Sale Terminal Hub, USB 3.0 Storage Expansion, Medical Imaging Workstation Hub.
USB 3.0 Docking Station
The CYUSB3302-68LTXIT is well-suited for USB-C and legacy USB-A docking stations that need four downstream SuperSpeed ports to connect external SSDs, displays, and peripherals to a laptop. Its integrated 5 Gbps PHY eliminates the need for an external USB 3.0 PHY, reducing BOM cost and PCB area. The HX3 firmware handles USB Battery Charging 1.2 negotiation, allowing the dock to charge mobile devices on demand. Compared with discrete hub designs, the single-chip solution simplifies FCC and CE EMI compliance through integrated spread-spectrum clocking and proven reference layouts from Infineon.
Рекомендуется
USB Hub Integrated into Monitor
Embedding a USB 3.0 hub into a monitor is a canonical HX3 use case because the upstream USB-B or USB-C uplink drives four downstream ports that connect to a keyboard, mouse, headset, and webcam. The CYUSB3302-68LTXIT's low-power USB 3.0 suspend states let the monitor's hub stay powered down when the host is asleep, while the Cortex-M0 core handles port-power switching through GPIOs. The 68-VFQFN EP package fits inside a monitor's main board with a small thermal copper are under the exposed pad for sustained SuperSpeed link operation.
Рекомендуется
Industrial Embedded PC
Industrial PCs and panel-mount HMIs benefit from the CYUSB3302-68LTXIT because it expands a single USB port into four while surviving industrial temperature ranges. The HX3 firmware's USB 3.0 specification revision 1.0 compliance ensures deterministic enumeration with embedded Linux and Windows IoT hosts. Design wins include factory automation controllers and test equipment front panels where the industrial-grade CYUSB3302-68LTXIT supports SuperSpeed data acquisition cards that require sustained 5 Gbps throughput.
Рекомендуется
Point-of-Sale Terminal Hub
POS terminals often need to fan out one upstream USB port into multiple peripherals (barcode scanner, receipt printer, customer display, payment terminal). The CYUSB3302-68LTXIT's four-port architecture and USB Battery Charging 1.2 support make it ideal because peripherals charge during off-hours without an external charger. The HX3 firmware's robust enumeration handles hot-plug events during customer transactions, and the exposed-pad QFN package allows operation in thermally constrained terminal enclosures.
Рекомендуется
USB 3.0 Storage Expansion
External SSD enclosures and RAID towers can use the CYUSB3302-68LTXIT to aggregate multiple USB 3.0 SSD channels into a single upstream USB-C or USB-A port. The hub's 5 Gbps SuperSpeed per-port bandwidth prevents contention when several SSDs run concurrently, while its integrated PHY minimizes signal-integrity issues. Compared with a discrete USB 3.0 hub plus PHY design, the single-chip HX3 cuts latency by reducing hub-to-PHY interconnect traces.
Рекомендуется
Medical Imaging Workstation Hub
Medical imaging workstations connect USB 3.0 cameras, endoscopes, and capture cards that need sustained SuperSpeed bandwidth. The CYUSB3302-68LTXIT's compliance with USB 3.0 specification revision 1.0 ensures interoperability with medical imaging drivers, and its USB Battery Charging 1.2 support allows the workstation to charge tethered tablets. Designers must validate the industrial temperature grade against the medical device's required operating range per IEC 60601-1 design controls.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для CYUSB3302-68LTXIT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | CYUSB3302-68LTXI | CYUSB3302-68LTXC | CYUSB3304-68LTXI |
|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon |
| Package | 68-VFQFN Exposed Pad | 68-VFQFN Exposed Pad | 68-VFQFN Exposed Pad | 68-VFQFN Exposed Pad |
| Downstream Ports | 4 | 4 | 4 | 4 |
| USB Speed Support | LS / FS / HS / SS (5 Gbps) | LS / FS / HS / SS (5 Gbps) | LS / FS / HS / SS (5 Gbps) | LS / FS / HS / SS (5 Gbps) |
| Battery Charging 1.2 | Yes | Yes | Yes | Yes |
| Core Processor | ARM Cortex-M0 | ARM Cortex-M0 | ARM Cortex-M0 | ARM Cortex-M0 |
| Internal ROM | 32 kB | 32 kB | 32 kB | 32 kB |
| Operating Temperature Grade | Industrial | Industrial | Commercial | Industrial |
| Packaging Form | Tape & Reel | Tray | Tape & Reel | Tray |
Ключевые отличия
- Integrated 5 Gbps PHY reduces BOM (против Discrete USB 3.0 hub + external PHY reference design)
- USB Battery Charging 1.2 built in (против TUSB8041 from Texas Instruments)
- ARM Cortex-M0 customization (против Rigid ROM-only USB hub controllers)
Заметки по проектированию
Use the manufacturer-recommended 68-VFQFN EP land pattern with continuous ground copper are under the exposed thermal pad for heat spreading. Maintain 90 ohm differential impedance for SuperSpeed pairs and 45 ohm single-ended impedance for USB 2.0 DP/DM pairs per USB-IF routing guidelines.
Provide a clean 3.3 V supply with bulk plus high-frequency ceramic decoupling (10 uF + 0.1 uF) adjacent to each VDD33 pin. The internal 1.2 V regulator requires adequate input bulk capacitance; if VIN approaches 3.3 V minimum, ensure headroom for the linear regulator to maintain regulation.
Do not skip the 25 MHz crystal or reference clock; jitter outside the HX3 datasheet spec will degrade SuperSpeed link margin. Route the crystal traces short and symmetric with a guard ring tied to GND. Avoid routing USB signal pairs near switching power nodes to minimize EMI.
Информация о соответствии
RoHS compliant per Infineon product page; lead-free reflow profile per J-STD-020. AEC-Q100 is not applicable - this is a USB interface IC, not an automotive-grade device.
