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Infineon Technologies CYUSB3302-68LTXCT
- Part No.:
- CYUSB3302-68LTXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CYUSB3302-68LTXCT.pdf
- Description:
- IC USB 3.0 HUB 2-PORT 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
CYUSB3302-68LTXCT 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 shared-link capability for embedded SS + USB 2.0 dual-device attachment per port. It supports pin-strapped configuration, I2C-based firmware upgrade, and operates across –40°C to +85°C industrial temperature range.
For engineers reviewing the CYUSB3302-68LTXCT datasheet, CYUSB3302-68LTXCT pinout, CYUSB3302-68LTXCT application, or CYUSB3302-68LTXCT equivalent, key selection criteria include USB 3.0 hub topology support, BC v1.2 charging implementation, shared-link flexibility in space-constrained embedded systems, and I2C slave/master configurability for system-level integration.
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 (Multi-TT), L0–L3 power management, and suspend/resume signaling. It embeds a Cortex-M0 subsystem managing configuration, battery charging control, and vendor-command execution.
Port control includes overcurrent detection, ganged/individual power switching, VBUS sensing, and LED status signaling per downstream port. Configuration is supported via pin-straps (VID, port count, charging enable), eFuse, or I2C EEPROM - enabling flexible BOM reduction without external configuration ICs.
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 on all ports |
| Downstream Ports | 2 × USB 3.2 Gen 1 DS ports with independent SS + USB 2.0 PHYs and Multi-TT |
| Battery Charging | USB BC v1.2 compliant; ghost charging enabled per DS port without upstream host connection |
| CPU Core | ARM Cortex-M0 with 16 KB RAM and 32 KB ROM for runtime configuration and vendor command handling |
| Configuration Interface | I2C master/slave/multi-master mode; supports EEPROM programming and external ASSP firmware update |
| Operating Temp | –40°C to +85°C industrial grade, validated for sustained operation in embedded docking and monitor applications |
| Package | 68-pin QFN (8 mm × 8 mm × 1.0 mm), lead-free and RoHS-compliant |
Pinout & Package
68-pin QFN (8 × 8 × 1.0 mm), exposed thermal pad, 0.4 mm pitch, RoHS-compliant package with integrated termination and pull-up/down resistors to minimize external components.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_3P3 | 3.3 V Power Supply | Primary IO supply for USB 2.0 PHY, I2C, GPIOs, and port control logic |
| VDD_1P2 | 1.2 V Power Supply | Dedicated core voltage for Cortex-M0 CPU and SS PHY digital logic |
| US_DP / US_DM | Upstream Differential Pair | Connects to host controller; supports SS + USB 2.0 signaling on single lane |
| DS1_DP / DS1_DM / DS2_DP / DS2_DM | Downstream Differential Pairs | Each pair carries both SS and USB 2.0 traffic; enables shared-link mode per port |
| I2C_SDA / I2C_SCL | I2C Interface Signals | Supports configuration loading, EEPROM ISP, and USB-to-I2C bridge operation |
| PWR_EN1 / PWR_EN2 | Port Power Enable Outputs | Ganged or individually controlled signals driving external power switches per DS port |
| LED_SUS / LED_SS / LED_HS | Status Indicator Outputs | Drive external LEDs to indicate suspend, SuperSpeed, and USB 2.0 activity per port |
Key Features
| Feature | Design Value |
|---|---|
| Shared Link Mode | Enables simultaneous connection of one embedded SS device and one removable USB 2.0 device per DS port - reduces port count needed in compact embedded designs |
| Ghost Charging | Each DS port emulates a Dedicated Charging Port (DCP) when upstream host is absent - enables battery top-up for peripherals without host presence |
| Vendor Command Support | USB-to-I2C bridge functionality allows firmware updates of external ASSPs or EEPROMs directly over USB, eliminating separate programming interfaces |
| Pin-Strap Configuration | Eliminates need for external configuration EEPROM in cost-sensitive designs; supports VID, port count, charging enable, and power switch polarity setup at boot |
| ACA-Dock Ready | Supports Accessory Charger Adapter Dock mode for smartphones/tablets acting as hosts - enables concurrent charging and data transfer under BC v1.2 |
Applications
| Standalone USB Hub | Docking Station |
|---|---|
Use Scenario: Compact desktop or travel hub connecting multiple peripherals to a laptop or PC. IC Role / Device Role / Timing Role: Central USB 3.2 Gen 1 hub controller managing protocol translation, power distribution, and link state negotiation across all ports. Use Value: Delivers full 5 Gbps bandwidth to each downstream device while maintaining backward compatibility and low-power LPM states during idle periods. | Use Scenario: Multi-interface docking station for laptops with video, Ethernet, storage, and peripheral connectivity. IC Role / Device Role / Timing Role: Embedded hub controller providing isolated, high-bandwidth USB expansion with integrated BC v1.2 charging for connected phones and tablets. Use Value: Enables ACA-Dock mode for smartphone-as-host use cases and ghost charging for peripherals even when laptop is powered off. |
| Monitor with USB Hub | Industrial Embedded System |
Use Scenario: Display with built-in USB hub for keyboard, mouse, webcam, and flash drive connectivity via single upstream cable. IC Role / Device Role / Timing Role: Integrated hub managing USB 2.0 and SS traffic from display-side peripherals while coordinating with GPU/SoC upstream interface. Use Value: Reduces component count with on-chip termination, pull-ups, and configurable GPIOs - simplifying layout and lowering BOM cost. | Use Scenario: Space-constrained medical or test equipment requiring local USB device attachment and host-less charging capability. IC Role / Device Role / Timing Role: Embedded hub with shared-link mode supporting co-location of fixed SS sensors and hot-plug USB 2.0 diagnostics tools on same physical port. Use Value: Doubles effective port density without additional connectors or routing layers - critical for miniaturized PCBs with strict mechanical constraints. |
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 |
|---|---|---|---|
| CYUSB3304-68LTXCT | 4-port variant with identical architecture, package, and feature set; no shared-link or ACA-Dock support in base configuration | Suitable for applications requiring higher port count without shared-link complexity | Select when expanding downstream connectivity beyond two devices is required and pin-strapped configuration suffices |
| UPD720210K8-711-BAC-A | Renesas USB 3.0 hub with 4 DS ports, no integrated MCU, no ghost charging, no shared-link, requires external EEPROM for configuration | Targeted at cost-optimized PC peripheral hubs where BC v1.2 and embedded intelligence are not required | Choose when minimal firmware dependency, legacy driver support, and lower unit cost outweigh advanced charging and configurability needs |
Compared with CYUSB3304-68LTXCT, this part offers reduced port count but retains shared-link and ghost charging - ideal for embedded systems prioritizing density and host-less operation. Versus UPD720210, it delivers integrated intelligence, BC v1.2 enforcement, and configuration flexibility at higher silicon integration cost.
Availability
CYUSB3302-68LTXCT is available at Aetrix Electronics and suitable for standalone USB hubs, docking stations, monitor-integrated hubs, and industrial embedded systems requiring stable component supply, industrial temperature operation, and USB 3.2 Gen 1 compliance.
Supply support for CYUSB3302-68LTXCT 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, sensor, security, and connectivity solutions for automotive, industrial, and consumer markets.
CYUSB3302 belongs to the EZ-USB™ HX3 family - designed specifically for high-integration USB 3.x hub applications in space-constrained, power-aware embedded systems requiring intelligent charging and flexible configuration.
FAQ
Does CYUSB3302-68LTXCT support USB 3.2 Gen 2 (10 Gbps)?
No. CYUSB3302-68LTXCT complies strictly with USB 3.2 Gen 1 (5 Gbps) and USB 2.0 specifications. Its SS PHY is rated for 5 Gbps operation only, and the datasheet confirms no Gen 2 capability. It supports U0–U3 link power states and full-duplex transmission at 5 Gbps, but does not implement the 10 Gbps lane bonding or enhanced encoding required for Gen 2.
Can the integrated Cortex-M0 be used for custom firmware development?
Yes. The ARM Cortex-M0 subsystem includes 16 KB of RAM and 32 KB of ROM, and supports firmware upgrades via I2C EEPROM or USB-based vendor commands. Infineon provides Blaster Plus software and SDKs enabling customization of GPIO behavior, charging profiles, and descriptor strings - though full toolchain access requires NDA-covered development resources.
Is pin-strapping sufficient for full configuration without EEPROM?
Yes. Pin-strapping supports VID, PID, number of active ports, charging enable per port, power switch ganging, and polarity selection - covering most static configurations. However, dynamic features like string descriptors, ACA-Dock mode, or runtime vendor-command behavior require I2C EEPROM or firmware loading; pin-straps alone cannot enable ghost charging or shared-link mode activation.
What is the maximum power dissipation in industrial temperature operation?
At –40°C to +85°C, the 68-pin QFN package supports up to 1.2 W total power dissipation under typical USB 3.0 traffic load with two active downstream ports. Thermal performance is validated per JEDEC JESD51-2, and the exposed thermal pad must be soldered to a minimum 200 mm² copper pour for reliable operation at maximum ambient temperature.
CYUSB3302-68LTXCT 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-QFN (8x8)
CYUSB3302-68LTXCT FAQ
1.How can I place an order for CYUSB3302-68LTXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3302-68LTXCT 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 CYUSB3302-68LTXCT reliable?
The price and inventory of CYUSB3302-68LTXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3302-68LTXCT is usually 5 days.
3.What payment methods are accepted for CYUSB3302-68LTXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3302-68LTXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3302-68LTXCT?
CYUSB3302-68LTXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3302-68LTXCT 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 CYUSB3302-68LTXCT?
For technical support, including CYUSB3302-68LTXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3302-68LTXCT requirements.
6.How does Aetrix verify that CYUSB3302-68LTXCT is sourced from the original manufacturer or authorized distributors?
All CYUSB3302-68LTXCT 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 CYUSB3302-68LTXCT meets industry standards.
7.What is the process for return or replacement of CYUSB3302-68LTXCT?
All CYUSB3302-68LTXCT units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3302-68LTXCT, 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 CYUSB3302-68LTXCT part is unused and in its original packaging.
Return procedure for CYUSB3302-68LTXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3302-68LTXCT Tags
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CYPD3175-24LQXQ
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SLB9672VU20FW1523XTMA1
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SLB9670VQ20FW785XTMA1
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AT97SC3204-U2A1A-20
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AT97SC3204-U2A1A-10
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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SLB9672AU20FW1613XTMA1
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SLB9673AU20FW2613XTMA1
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