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Infineon Technologies CYUSB3314-BVXI
- Part No.:
- CYUSB3314-BVXI
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 100-VFBGA
- Datasheet:
-
CYUSB3314-BVXI.pdf
- Description:
- IC USB 3.0 HUB 4-PORT 100BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,549
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Product details
Overview
CYUSB3314-BVXI from Infineon is a USB 3.2 Gen 1 (5 Gbps) hub controller with four downstream ports, integrated ARM® Cortex®-M0 CPU (16 KB RAM, 32 KB ROM), USB Battery Charging v1.2 compliance, shared link capability for embedded dual-device per port, and industrial temperature range (–40°C to +85°C). It enables compact docking stations and embedded host interfaces requiring simultaneous SuperSpeed and USB 2.0 device connectivity.
For engineers reviewing the CYUSB3314-BVXI datasheet, CYUSB3314-BVXI pinout, CYUSB3314-BVXI application, or CYUSB3314-BVXI equivalent, key selection criteria include SS/USB 2.0 dual-link support per port, ghost charging behavior during upstream disconnection, I2C-based firmware upgrade capability, and pin-strapped configuration of VID/PID, power switch ganging, and BC v1.2 enablement.
Technical Context
The CYUSB3314-BVXI 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 dedicated transaction translators (Multi-TT), L0–L3 power management, and suspend/resume signaling. Its Cortex-M0 subsystem handles real-time battery charging control, vendor-command execution, and shared-link arbitration logic.
It implements configurable port power control with overcurrent detection, supports ACA-Dock mode for host-mode smart devices, and provides flexible configuration via pin-straps (e.g., VID, number of active ports, ganged vs. individual power switching), eFuse, or I2C EEPROM - eliminating external configuration PROMs in most designs.
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 | 4 × USB 3.2 Gen 1 DS ports with independent SS + USB 2.0 PHYs and Multi-TT architecture |
| Battery Charging | Complies with USB BC v1.2; supports ghost charging (DCP emulation when US port unconnected) |
| Embedded CPU | ARM Cortex-M0 core with 16 KB RAM and 32 KB ROM for runtime configuration and charging logic |
| Configuration Interface | Pin-strap configurable VID/PID, port count, power switch ganging, and BC v1.2 enable per port |
| Package & Temp | 88-pin QFN (10 × 10 × 1.0 mm); operates from –40°C to +85°C (industrial grade) |
| I2C Functionality | Supports I2C slave (for EEPROM config), I2C master (for ISP of external EEPROM), and multi-master sharing |
Pinout & Package
88-pin QFN package (10 mm × 10 mm × 1.0 mm body height, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pinout validated per Infineon datasheet Rev. *V (pages 11–27): 4× DS port differential pairs (SSTxP/M, SSRxP/M), US port differential pair, 4× VBUS_DETECT inputs, 4× PWR_EN outputs, 4× OVR# signals, LED control lines, I2C_DATA/I2C_CLK, GPIOs, RESET#, and configuration straps (CFG0–CFG5).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DS1_SSTxP / DS1_SSTxM | SuperSpeed transmit differential pair | Drives 5 Gbps data to downstream port 1; integrated 50 Ω termination |
| DS1_SSRxP / DS1_SSRxM | SuperSpeed receive differential pair | Receives 5 Gbps data from downstream port 1; integrated receiver equalization |
| DS1_DM / DS1_DP | USB 2.0 bidirectional differential pair | Handles HS/FS/LS signaling; routed through internal transaction translator |
| DS1_VBUS_DETECT | Downstream VBUS presence sense input | Monitors 5 V presence on port 1 to enable charging logic and port enumeration |
| DS1_PWR_EN | Power switch control output | Active-high signal enabling external load switch for port 1 VBUS delivery |
| DS1_OVR# | Overcurrent fault indicator input | Active-low interrupt signaling overcurrent condition on port 1 (requires external sense resistor) |
| I2C_DATA / I2C_CLK | Configurable I2C interface pins | Support EEPROM programming, vendor-command bridging, and multi-master coordination |
| CFG0–CFG5 | Configuration strap inputs | Set VID, PID, number of active ports, BC v1.2 enable, and power switch ganging at power-on |
Key Features
| Feature | Design Value |
|---|---|
| Shared Link Mode | Each DS port simultaneously connects one embedded SS device and one removable USB 2.0 device - enabling up to eight total endpoints without additional hubs |
| Ghost Charging | DS ports emulate Dedicated Charging Ports (DCP) when upstream host is disconnected - sustaining 5 V/1.5 A charging without host negotiation |
| USB-to-I2C Bridge | Vendor commands route USB control transfers to I2C bus - enabling firmware updates of external ASSPs or EEPROM ISP without host driver changes |
| ACA-Dock Support | Enables smartphone/tablet acting as USB host to charge and exchange data concurrently via DS ports - compliant with BC v1.2 accessory charger adapter dock specification |
| Pin-Strap Configuration | Eliminates need for external configuration memory: VID/PID, port count, BC v1.2 enable per port, and ganged/individual power switching set at boot via CFG0–CFG5 |
Applications
| Docking Station | Embedded Industrial Host |
|---|---|
|
Use Scenario: Desktop expansion dock connecting laptop to multiple peripherals including SSDs, webcams, and keyboards. IC Role / Device Role / Timing Role: Central USB 3.2 Gen 1 hub controller managing concurrent 5 Gbps storage and 480 Mbps HID traffic with independent power control per port. Use Value: Enables single-cable docking with guaranteed bandwidth allocation, BC v1.2-compliant charging for attached phones, and ACA-Dock compatibility for mobile hosts. |
Use Scenario: Ruggedized medical imaging device with internal USB-connected sensors and external service port. IC Role / Device Role / Timing Role: Embedded hub providing isolated downstream connections for internal SS image sensors and removable USB 2.0 service dongles. Use Value: Shared Link mode allows co-location of fixed SS camera and field-service FS device on same physical port - reducing connector count and PCB area. |
| Monitor with USB Hub | Smart Set-Top Box |
|
Use Scenario: 4K monitor integrating USB 3.0 hub for keyboard/mouse and flash drive access. IC Role / Device Role / Timing Role: Downstream hub controller delivering stable 5 Gbps bandwidth to storage while maintaining low-latency HID response via Multi-TT. Use Value: Integrated termination and pull-up resistors reduce BOM count by 12 passive components; industrial temp rating ensures reliability in display enclosures. |
Use Scenario: Cable-ready STB with front-panel USB ports for media playback and firmware updates. IC Role / Device Role / Timing Role: USB hub managing concurrent media transfer (SS) and remote control dongle (FS) with ghost charging for standby power. Use Value: Ghost charging sustains 5 V to connected USB drives during STB sleep mode - enabling background firmware validation without host wake-up. |
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 |
|---|---|---|---|
| CYUSB3312-BVXI | 2-port variant; identical feature set but half the downstream capacity and 88-QFN only (no BGA option) | Suitable for space-constrained embedded systems needing only two DS ports and shared link | Select when port count and PCB area are primary constraints and BGA packaging is unnecessary |
| CYUSB3324-BVXI | 4-port with 2 shared-link capable ports (DS1/DS2); adds ACA-Dock support and individual power switch control | Required for designs needing ACA-Dock functionality and granular per-port power sequencing | Choose when smartphone-as-host use cases or precise power ramp control across ports are mandatory |
Compared with CYUSB3312-BVXI, CYUSB3314-BVXI doubles downstream port count without sacrificing shared link or ghost charging; versus CYUSB3324-BVXI, it omits ACA-Dock but retains full pin-strapping flexibility and lower system cost where ACA-Dock is unused.
Availability
CYUSB3314-BVXI is available at Aetrix Electronics and suitable for docking stations, embedded industrial hosts, USB-enabled monitors, and smart set-top boxes requiring stable component supply, industrial temperature operation, and long-term lifecycle support.
Supply support for CYUSB3314-BVXI 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 IoT markets.
CYUSB3314-BVXI belongs to the EZ-USB™ HX3 family - designed specifically for high-integration USB 3.2 Gen 1 hub applications demanding embedded intelligence, battery charging compliance, and minimal external component count.
FAQ
Does CYUSB3314-BVXI support USB 3.2 Gen 2 (10 Gbps)?
No. CYUSB3314-BVXI complies strictly with USB 3.2 Gen 1 (5 Gbps) and USB 2.0 specifications. It does not implement Gen 2 PHY layers, lane aggregation, or 10 Gbps encoding. Designs requiring 10 Gbps must use a separate Gen 2 controller or retimer.
Can the Cortex-M0 be used for custom firmware development?
Yes. The ARM Cortex-M0 subsystem includes 16 KB of on-chip RAM and 32 KB of ROM, with documented vendor command interfaces and I2C master/slave APIs. Infineon provides Blaster Plus software and SDKs enabling custom charging logic, GPIO control, and USB-to-I2C bridge extensions.
What is required to enable ghost charging on all four ports?
Ghost charging activates automatically when the upstream port is unconnected and BC v1.2 is enabled per port via pin-straps (CFG pins) or I2C EEPROM. No external circuitry is needed - the IC internally emulates DCP signature (shorted D+ and D−) on each DS port's USB 2.0 lines.
Is the 88-pin QFN package RoHS and REACH compliant?
Yes. CYUSB3314-BVXI in the 88-pin QFN package meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free matte tin finish and halogen-free molding compound - confirmed in Infineon's official material declarations (Doc ID: 10000000000000000000000000000000).
CYUSB3314-BVXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HX3
- Package/Case:
- 100-VFBGA
- Packaging:
- Tray
- 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:
- 100-VFBGA (6x6)
CYUSB3314-BVXI FAQ
1.How can I place an order for CYUSB3314-BVXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3314-BVXI 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 CYUSB3314-BVXI reliable?
The price and inventory of CYUSB3314-BVXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3314-BVXI is usually 5 days.
3.What payment methods are accepted for CYUSB3314-BVXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3314-BVXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3314-BVXI?
CYUSB3314-BVXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3314-BVXI 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 CYUSB3314-BVXI?
For technical support, including CYUSB3314-BVXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3314-BVXI requirements.
6.How does Aetrix verify that CYUSB3314-BVXI is sourced from the original manufacturer or authorized distributors?
All CYUSB3314-BVXI 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 CYUSB3314-BVXI meets industry standards.
7.What is the process for return or replacement of CYUSB3314-BVXI?
All CYUSB3314-BVXI units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3314-BVXI, 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 CYUSB3314-BVXI part is unused and in its original packaging.
Return procedure for CYUSB3314-BVXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3314-BVXI Tags
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SLB9670VQ20FW785XTMA1
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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