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Infineon Technologies CYUSB3302-68LTXIT
- Part No.:
- CYUSB3302-68LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CYUSB3302-68LTXIT.pdf
- Description:
- IC USB 3.0 HUB 2-PORT 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,700
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Product details
Overview
CYUSB3302-68LTXIT from Infineon is a USB 3.2 Gen 1 (5 Gbps) hub controller with two downstream ports, integrated ARM® Cortex®-M0 CPU (16 KB RAM, 32 KB ROM), USB Battery Charging v1.2 compliance, and 68-pin QFN (8 × 8 × 1.0 mm) packaging. It supports shared-link mode for embedded dual-device per port, ghost charging, and pin-strapped configuration - deployed in docking stations and industrial monitors requiring compact, certified, multi-speed USB connectivity.
For engineers reviewing the CYUSB3302-68LTXIT datasheet, CYUSB3302-68LTXIT pinout, CYUSB3302-68LTXIT application, or CYUSB3302-68LTXIT equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options - all aligned to USB-IF TID# 330000060 certification and Infineon's HX3 product family architecture.
Technical Context
The device integrates two independent hub controllers: an SS hub supporting U0–U3 link power states and full-duplex 5 Gbps operation, and a USB 2.0 hub with four transaction translators (one per DS port), L0–L3 power management, and remote wake-up signaling. It embeds a Cortex-M0 subsystem managing firmware updates, battery charging logic, and vendor-command-based USB-to-I2C bridging.
Configuration is supported via pin-straps (VID, port count, power switch ganging), eFuse, or I2C EEPROM - enabling factory-programmed descriptors and runtime reconfiguration. The port controller implements BC v1.2-compliant overcurrent detection, VBUS monitoring, and automatic port numbering based on active DS port enumeration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | 5 Gbps SuperSpeed, 480 Mbps High-Speed, 12 Mbps Full-Speed, 1.5 Mbps Low-Speed - all ports fully backward-compatible |
| Downstream Ports | 2 × USB 3.2 Gen 1 DS ports with dedicated TT per port - enables simultaneous SS + USB 2.0 device attachment per port via shared-link mode |
| Charging Compliance | USB BC v1.2 on both DS ports - supports DCP emulation (ghost charging), ACA-Dock, and Apple charging without host connection |
| Embedded Processor | ARM Cortex-M0 core with 16 KB RAM and 32 KB ROM - executes firmware for GPIO control, descriptor handling, and I2C bridge operations |
| Configuration Interface | I2C slave/master/multi-master support - enables external EEPROM programming, ISP via USB, and shared-bus coordination with other masters |
| Operating Temperature | –40°C to +85°C industrial range - qualified for embedded monitor, docking station, and set-top box thermal environments |
| Package Dimensions | 68-pin QFN, 8 mm × 8 mm × 1.0 mm - surface-mount compatible with standard reflow profiles and high-density PCB layouts |
Pinout & Package
68-pin QFN package (8 × 8 × 1.0 mm, exposed thermal pad), RoHS-compliant, moisture sensitivity level 3. Pinout validated per Infineon datasheet Rev. *V, pages 11–27.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| US_DP / US_DM | Upstream differential pair | Connects to host controller; carries bidirectional SS/USB 2.0 traffic with integrated termination |
| DS1_DP / DS1_DM / DS2_DP / DS2_DM | Downstream differential pairs | Each pair supports full USB 2.0 HS/FS/LS signaling and SS 5 Gbps lanes; configurable for shared-link mode |
| I2C_SDA / I2C_SCL | I2C interface signals | Supports EEPROM configuration, firmware upgrade, and USB-to-I2C bridging in slave/master modes |
| PWR_EN1 / PWR_EN2 | Power switch enable outputs | Directly drive external load switches; polarity selectable via pin-straps for ganged or individual port control |
| LED_SUSP / LED_SS / LED_USB2 | Status indicator outputs | Drive LEDs for suspend, SuperSpeed activity, and USB 2.0 operation - configurable per-port via firmware |
| VBUS_DET1 / VBUS_DET2 | Downstream VBUS detection inputs | Monitor attached device power presence; trigger overcurrent protection and charging state transitions |
Key Features
| Feature | Design Value |
|---|---|
| USB-IF Certification | TID# 330000060 - ensures interoperability with certified hosts and peripherals across Windows, macOS, and Linux |
| Shared Link Mode | Enables one DS port to concurrently connect an embedded SS device and a removable USB 2.0 peripheral - increases effective device count to 4 in space-constrained designs |
| Ghost Charging | DS ports emulate Dedicated Charging Ports (DCP) when upstream host is disconnected - maintains charging for tablets/smartphones during dock standby |
| Vendor Command Bridge | USB-to-I2C translation allows host-side firmware update of external ASSPs or EEPROMs without additional microcontrollers |
| Pin-Strap Configuration | Hardware-selectable VID, port count, power switch ganging, and BC v1.2 enablement - eliminates need for external configuration memory in cost-sensitive designs |
Applications
| Standalone Docking Stations | Industrial Monitors |
|---|---|
Use Scenario: A compact USB-C dock connects laptop to dual 4K displays, keyboard/mouse, and SSD via single cable. IC Role / Device Role / Timing Role: CYUSB3302 acts as the primary USB 3.2 Gen 1 hub controller, managing bandwidth allocation, link power states, and BC v1.2 charging negotiation across two DS ports. Use Value: Enables simultaneous 5 Gbps data + 900 mA charging per port while maintaining USB-IF certification and WHQL driver compatibility. | Use Scenario: An industrial-grade monitor integrates USB 3.0 hubs to support HID peripherals and firmware updates via front-panel USB-A ports. IC Role / Device Role / Timing Role: Serves as embedded hub with shared-link capability - one DS port connects internal touch controller (SS), another connects external mouse (USB 2.0). Use Value: Reduces BOM count by eliminating separate SS and USB 2.0 hubs; operates reliably at –40°C to +85°C without derating. |
| Set-Top Boxes | Hand-Held Cradles |
Use Scenario: A 4K IPTV set-top box provides USB ports for external storage, IR blasters, and service diagnostics tools. IC Role / Device Role / Timing Role: Manages concurrent USB 2.0 HID and SS mass storage traffic while enforcing BC v1.2 charging for diagnostic dongles. Use Value: Supports ACA-Dock mode to charge and communicate with Android-based service tablets - no host PC required. | Use Scenario: A medical handheld cradle charges and synchronizes data from portable diagnostic devices using a single USB-C connection. IC Role / Device Role / Timing Role: Provides ghost charging on both DS ports during cradle idle time, then switches to full data+power mode upon host detection. Use Value: Eliminates need for secondary charging ICs - reduces footprint and power loss in battery-powered cradle designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.2 Gen 1 hub controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYUSB3304-68LTXIT | 4-port variant with identical 68-QFN package, same Cortex-M0 subsystem, and extended pin-strapping - adds two DS ports without changing board layout footprint | Suitable for higher-port-count docks or motherboards where expansion headroom is required | Select when future scalability or multi-peripheral support justifies added port count and pin count |
| UPD720210K8-711-BAC-A | Renesas USB 3.0 hub with 4 DS ports, no integrated MCU, no ghost charging, and no shared-link mode - requires external EEPROM for configuration | Used in legacy PC add-in cards where BC v1.2 and embedded firmware features are not required | Choose only if design mandates Renesas ecosystem compatibility or avoids ARM-based firmware dependencies |
Compared with CYUSB3304-68LTXIT, this part trades port count for smaller footprint and lower system-level complexity; versus UPD720210, it delivers integrated charging logic, firmware upgradability, and shared-link flexibility - critical for embedded dock and cradle applications.
Availability
CYUSB3302-68LTXIT is available at Aetrix Electronics and suitable for standalone docking stations, industrial monitors, and set-top boxes requiring stable component supply, USB-IF certification, and industrial temperature operation.
Supply support for CYUSB3302-68LTXIT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, sensing, connectivity, and security solutions for automotive, industrial, and consumer markets.
The EZ-USB™ HX3 product line delivers highly integrated, USB-IF-certified hub controllers optimized for embedded docking, display interfaces, and portable cradle systems - combining USB 3.2 Gen 1 performance with intelligent power and charging management.
FAQ
Does CYUSB3302-68LTXIT support USB 3.2 Gen 2 (10 Gbps)?
No. CYUSB3302-68LTXIT complies strictly with USB 3.2 Gen 1 (5 Gbps) and USB 2.0 specifications. Its SS PHY and routing logic are designed for 5 Gbps signaling only; it does not support 10 Gbps lane bonding, Gen 2x2, or related electrical parameters.
Can the integrated Cortex-M0 be used for custom application code?
No. The Cortex-M0 is reserved for Infineon's proprietary firmware handling USB protocol stack, charging control, and vendor commands. It is not user-programmable; external microcontrollers must be used for custom logic beyond supported vendor-command extensions.
Is external EEPROM required for basic operation?
No. Pin-strapping supports essential configuration (VID, port count, charging enable) without EEPROM. However, I2C EEPROM is required for custom string descriptors, advanced power policies, or runtime firmware updates - not needed for default factory settings.
What is the maximum allowable junction temperature during continuous operation?
The absolute maximum junction temperature is +125°C per datasheet Section 9. For sustained operation at full 2-port 5 Gbps load, thermal design must maintain TJ ≤ 105°C. The 68-QFN package's θJA is 32°C/W; recommended PCB layout uses ≥4 thermal vias under the exposed pad to achieve this.
CYUSB3302-68LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HX3
- Package/Case:
- 68-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- USB 3.0 Hub Controller
- Core Processor:
- ARM® Cortex®-M0
- Program Memory Type:
- ROM (32kB)
- Controller Series:
- CYUSB
- RAM Size:
- 16K x 8
- Interface:
- I2C
- Number of I/O:
- 10
- Voltage - Supply:
- 1.14V ~ 1.26V, 2.5V ~ 2.7V, 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-QFN (8x8)
CYUSB3302-68LTXIT FAQ
1.How can I place an order for CYUSB3302-68LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3302-68LTXIT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CYUSB3302-68LTXIT reliable?
The price and inventory of CYUSB3302-68LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3302-68LTXIT is usually 5 days.
3.What payment methods are accepted for CYUSB3302-68LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3302-68LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3302-68LTXIT?
CYUSB3302-68LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3302-68LTXIT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CYUSB3302-68LTXIT?
For technical support, including CYUSB3302-68LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3302-68LTXIT requirements.
6.How does Aetrix verify that CYUSB3302-68LTXIT is sourced from the original manufacturer or authorized distributors?
All CYUSB3302-68LTXIT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CYUSB3302-68LTXIT meets industry standards.
7.What is the process for return or replacement of CYUSB3302-68LTXIT?
All CYUSB3302-68LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3302-68LTXIT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CYUSB3302-68LTXIT part is unused and in its original packaging.
Return procedure for CYUSB3302-68LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3302-68LTXIT Tags
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CYPD3175-24LQXQ
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SLB9672VU20FW1523XTMA1
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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SLB9672AU20FW1613XTMA1
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SLB9673AU20FW2613XTMA1
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