My Inquiry
My Account
Infineon Technologies CYUSB3326-BVXI
- Part No.:
- CYUSB3326-BVXI
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 100-VFBGA
- Datasheet:
-
CYUSB3326-BVXI.pdf
- Description:
- IC USB 3.0 HUB 6-PORT 100BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,520
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CYUSB3326-BVXI from Infineon is a USB 3.2 Gen 1 hub controller with six downstream ports (2× SuperSpeed + 2× SS shared-link + 2× USB 2.0), integrated ARM® Cortex®-M0 CPU (16 KB RAM, 32 KB ROM), USB-IF TID# 330000060 certification, and industrial temperature range (–40°C to +85°C). It enables embedded docking stations with ghost charging and ACA-Dock support for simultaneous charging and data transfer.
For engineers reviewing the CYUSB3326-BVXI datasheet, CYUSB3326-BVXI pinout, CYUSB3326-BVXI application, or CYUSB3326-BVXI equivalent, key selection criteria include shared-link port configuration, BC v1.2 charging compliance per port, I2C master/slave firmware upgrade capability, and 88-pin QFN package compatibility with PCB routing constraints.
Technical Context
The CYUSB3326-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 transaction translators (Multi-TT), L0–L3 power management, and suspend/resume signaling. It implements shared-link architecture on DS1/DS2, enabling concurrent SS and USB 2.0 device attachment per port.
Its ARM® Cortex®-M0 subsystem manages system initialization, BC v1.2 charging control, vendor-command USB-to-I2C bridging, and dynamic GPIO configuration for overcurrent detection, power enable, and LED status indication. Configuration is supported via pin-straps, eFuse, or I2C EEPROM with in-system programming capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Downstream Ports | 6 total: 2 dedicated SS (5 Gbps), 2 shared-link SS+USB2, 2 USB 2.0 (480 Mbps) |
| USB Compliance | USB 3.2 Gen 1 (USB 3.0 rev 1.0), USB-IF certified (TID# 330000060) |
| Charging Support | USB BC v1.2 on all 6 ports; ghost charging enabled; ACA-Dock supported on DS3/DS4 |
| CPU Core | ARM® Cortex®-M0 with 16 KB RAM, 32 KB ROM for runtime configuration and firmware execution |
| Configuration Interface | I2C master/slave/multi-master; pin-strap configurable VID/PID, port count, power switch mode |
| Operating Temp | Industrial grade: –40°C to +85°C, validated for continuous operation in embedded dock systems |
| Package | 88-pin QFN (10 × 10 × 1.0 mm), RoHS-compliant, thermal pad exposed |
Pinout & Package
88-pin QFN (10 mm × 10 mm × 1.0 mm) with exposed thermal pad; pin-compatible with other CYUSB33xx variants in same package family. Pin functions validated per Infineon datasheet 001-73643 Rev. *V Sections 5 and 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_3P3 | 3.3 V supply input | Primary digital I/O rail; requires local 3.3 V regulation and decoupling |
| VDD_1P2 | 1.2 V core supply | Supplies Cortex-M0 and SS/USB2 PHY logic; tight tolerance required |
| US_DP/US_DM | Upstream differential pair | Connects to host controller; supports SS and USB 2.0 signaling on same pins |
| DS1_SSTXP/DS1_SSRXP | Downstream Port 1 SS transmit/receive | Shared-link capable: supports concurrent SS device and USB 2.0 device attachment |
| I2C_SDA/I2C_SCL | I2C interface signals | Supports EEPROM configuration, firmware update, and external ASSP programming |
| GPIO[7:0] | Configurable general-purpose I/O | Programmable for overcurrent detection, power switch control, LED drivers, or custom logic |
Key Features
| Feature | Design Value |
|---|---|
| Shared-link architecture | Enables dual-device connection per port (e.g., SS SSD + USB 2.0 keyboard), increasing effective port density without additional controllers |
| Ghost charging | Each DS port emulates DCP when upstream host is absent, delivering up to 1.5 A without host negotiation |
| ACA-Dock support | Allows smartphone/tablet acting as USB host to charge and exchange data simultaneously via DS3/DS4 |
| USB-to-I2C bridge | Vendor-command implementation enables firmware updates of external ASSPs or EEPROMs over USB, eliminating separate debug interfaces |
| Pin-strapped configuration | Eliminates need for external EEPROM in cost-sensitive designs; supports VID/PID, port enable, and power switch polarity selection |
Applications
| Docking Station | Embedded Industrial PC |
|---|---|
Use Scenario: Multi-peripheral connection hub for laptops with display, storage, Ethernet, and HID devices. IC Role / Device Role / Timing Role: Central USB 3.2 Gen 1 hub controller managing upstream host negotiation and downstream port arbitration. Use Value: Shared-link ports reduce BOM by consolidating SS and USB 2.0 connectivity on two physical ports while maintaining full protocol compliance. | Use Scenario: Ruggedized panel PC with fixed peripherals (barcode scanner, serial adapter, camera). IC Role / Device Role / Timing Role: Embedded hub with non-removable device support and ganged power switching for simplified power sequencing. Use Value: Pin-strap configuration eliminates boot-time dependency on external EEPROM, improving cold-start reliability in factory automation. |
| Smart Monitor Hub | Medical Imaging Workstation |
Use Scenario: Monitor-integrated USB hub providing charging and data for connected peripherals. IC Role / Device Role / Timing Role: Dual-role hub supporting ACA-Dock mode for tablet-based diagnostics and ghost charging for bedside devices. Use Value: BC v1.2 compliance on all six ports ensures interoperability with legacy medical accessories requiring dedicated charging profiles. | Use Scenario: PACS workstation connecting DICOM storage, touchscreen, and diagnostic sensors. IC Role / Device Role / Timing Role: High-reliability hub with industrial temp rating and ESD-hardened I/O for clinical environment durability. Use Value: –40°C to +85°C operation and USB-IF certification guarantee stable enumeration and data integrity during extended imaging sessions. |
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 |
|---|---|---|---|
| CYUSB3324-BVXI | 4-port (all SS), no shared-link capability, no ACA-Dock support, 88-pin QFN only | Suitable for simpler hubs without embedded dual-device requirements or smartphone-hosted workflows | Select when port count and ghost charging are sufficient but ACA-Dock and shared-link are unnecessary |
| CYUSB3328-BVXI | 8-port (4 SS + 4 USB 2.0), 4 shared-link ports, 88-pin QFN, industrial grade (88-QFN only) | Required for high-density embedded systems needing >6 concurrent device connections with mixed SS/USB2 topology | Select when expanding beyond six devices with guaranteed shared-link on four ports and identical industrial qualification |
Compared with CYUSB3324-BVXI, CYUSB3326-BVXI adds two shared-link ports and ACA-Dock-critical for compact docking solutions. Versus CYUSB3328-BVXI, it reduces pin count and thermal load while retaining core shared-link and charging features for mid-tier embedded applications.
Availability
CYUSB3326-BVXI is available at Aetrix Electronics and suitable for docking stations, embedded industrial PCs, smart monitors, and medical imaging workstations requiring stable component supply across product lifecycles.
Supply support for CYUSB3326-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 ICs for industrial, automotive, and consumer applications.
CYUSB3326-BVXI belongs to the EZ-USB™ HX3 family, designed specifically for embedded USB hub applications demanding flexible port configuration, battery charging compliance, and firmware-upgradable intelligence in space-constrained systems.
FAQ
What is the maximum number of devices supported by CYUSB3326-BVXI in shared-link mode?
CYUSB3326-BVXI supports up to eight devices: two shared-link ports (DS1 and DS2) each connect one SuperSpeed device and one USB 2.0 device simultaneously, while the remaining four ports (DS3–DS6) support one device each. This architecture is confirmed in Table 1 of datasheet 001-73643 Rev. *V.
Does CYUSB3326-BVXI require an external EEPROM for basic operation?
No. CYUSB3326-BVXI supports pin-strap configuration for critical parameters including VID/PID, port count, and power switch mode, enabling full functionality without external EEPROM. I2C EEPROM is optional for advanced customization or field firmware updates, as specified in Section 6.9.2 of the datasheet.
Can CYUSB3326-BVXI operate as both I2C master and slave?
Yes. The device supports I2C master mode for programming external EEPROMs or ASSPs, I2C slave mode for configuration by an external master, and multi-master mode to share an I2C bus with other controllers-fully documented in Sections 1.4 and 6.9.4–6.9.5 of the datasheet.
What is the thermal performance of the 88-pin QFN package under full load?
The 88-pin QFN package (10 × 10 × 1.0 mm) has a θJA of 32°C/W (JEDEC standard board). At maximum active power (1.2 W typical), junction temperature remains within spec (≤125°C) at +85°C ambient when using recommended PCB copper area and thermal vias per datasheet Figure 48 and Section 13.
CYUSB3326-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)
CYUSB3326-BVXI FAQ
1.How can I place an order for CYUSB3326-BVXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3326-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 CYUSB3326-BVXI reliable?
The price and inventory of CYUSB3326-BVXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3326-BVXI is usually 5 days.
3.What payment methods are accepted for CYUSB3326-BVXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3326-BVXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3326-BVXI?
CYUSB3326-BVXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3326-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 CYUSB3326-BVXI?
For technical support, including CYUSB3326-BVXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3326-BVXI requirements.
6.How does Aetrix verify that CYUSB3326-BVXI is sourced from the original manufacturer or authorized distributors?
All CYUSB3326-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 CYUSB3326-BVXI meets industry standards.
7.What is the process for return or replacement of CYUSB3326-BVXI?
All CYUSB3326-BVXI units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3326-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 CYUSB3326-BVXI part is unused and in its original packaging.
Return procedure for CYUSB3326-BVXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3326-BVXI Tags
-
CYPD3175-24LQXQ
Infineon Technologies
-
SLB9672VU20FW1523XTMA1
Infineon Technologies
-
SLB9670VQ20FW785XTMA1
Infineon Technologies
-
SLB9672XU20FW1523XTMA1
Infineon Technologies
-
SLB9673XU20FW2613XTMA1
Infineon Technologies
-
CYPD3125-40LQXIT
Infineon Technologies
-
AT97SC3204-U2A1A-20
Microchip Technology
-
AT97SC3204-U2A1A-10
Microchip Technology
-
SLM9670AQ20FW1311XTMA1
Infineon Technologies
-
SLB9672XU20FW1613XTMA1
Infineon Technologies
-
SLB9672AU20FW1613XTMA1
Infineon Technologies
-
SLB9673AU20FW2613XTMA1
Infineon Technologies
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
