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Infineon Technologies CYUSB3326-BVXC
- Part No.:
- CYUSB3326-BVXC
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 100-VFBGA
- Datasheet:
-
CYUSB3326-BVXC.pdf
- Description:
- IC USB 3.0 HUB 6-PORT 100BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,547
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Product details
Overview
CYUSB3326-BVXC from Infineon is a USB 3.2 Gen 1 hub controller supporting six downstream ports (2× USB 3.0 SuperSpeed + 2× shared-link SS + 2× USB 2.0), integrated ARM® Cortex®-M0 CPU (16 KB RAM, 32 KB ROM), USB Battery Charging v1.2 compliance, ghost charging, and ACA-Dock mode - deployed in docking stations and embedded host interfaces requiring multi-protocol port expansion.
For engineers reviewing the CYUSB3326-BVXC datasheet, CYUSB3326-BVXC pinout, CYUSB3326-BVXC application, or CYUSB3326-BVXC equivalent, key selection criteria include shared-link port configuration, BC v1.2 charging per port, I2C slave/master firmware update capability, and industrial temperature operation (–40°C to +85°C) in 88-pin QFN packaging.
Technical Context
The CYUSB3326-BVXC integrates two independent hub controllers: a USB 3.0 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 simultaneous SS and USB 2.0 device attachment per port.
Its embedded ARM® Cortex®-M0 subsystem manages configuration, battery charging control, vendor-command USB-to-I2C bridging, and GPIO-based overcurrent/power enable logic. The I2C interface operates in slave, master, or multi-master mode for EEPROM configuration and in-system programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Downstream Ports | 6 total: 2× native USB 3.0 SS + 2× shared-link SS/USB 2.0 + 2× USB 2.0 - enables 8-device connectivity in embedded systems |
| Data Rates | 5 Gbps (SS), 480 Mbps (HS), 12 Mbps (FS), 1.5 Mbps (LS) - full backward compatibility across all ports |
| Charging Support | USB BC v1.2 compliant on all 6 DS ports; ghost charging active when upstream host disconnected |
| CPU Core | ARM® Cortex®-M0 with 16 KB RAM and 32 KB ROM - executes firmware for GPIO control, descriptor handling, and vendor commands |
| Configuration Interface | I2C slave/master + pin-straps + eFuse - supports factory-programmed VID/PID, port count, power switch ganging, and DP/DM swap |
| Operating Temp | –40°C to +85°C industrial range - qualified for sustained operation in docking stations and set-top boxes |
| Package | 88-pin QFN (10 × 10 × 1.0 mm) - surface-mount compatible with standard reflow profiles and thermal vias |
Pinout & Package
Package: 88-pin QFN (10 mm × 10 mm × 1.0 mm), exposed thermal pad, 0.5 mm pitch, RoHS-compliant, industrial temperature grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_3P3 | I/O Power Supply | 3.3 V supply for USB 2.0 PHY, I2C, GPIOs, and LED drivers - requires local 10 µF + 100 nF decoupling |
| VDDA_1P2 | Analog Core Supply | 1.2 V supply for SS PHY and PLL - low-noise regulation critical for 5 Gbps signal integrity |
| US_DP / US_DM | Upstream Differential Pair | Connects to host controller; supports SS and USB 2.0 handshaking - requires controlled 90 Ω differential impedance |
| DS1_SSTXP/M / DS1_SSRXP/M | Downstream SS Lane 1 | Shared-link capable: carries SS traffic to embedded device or USB 2.0 traffic to removable peripheral - pin-multiplexed function |
| I2C_SDA / I2C_SCL | I2C Interface | Configurable as master (for EEPROM programming) or slave (for external MCU configuration) - 400 kHz fast-mode support |
| GPIO[0:7] | General-Purpose I/O | Programmable for overcurrent detection, power switch control, LED status, or custom vendor functions - configurable pull-up/down |
| RESET_N | Active-Low Reset | Asynchronous reset input; internal pull-up; must be held low ≥100 ns after power stabilization for reliable initialization |
Key Features
| Feature | Design Value |
|---|---|
| Shared Link Architecture | DS1 and DS2 each support concurrent SuperSpeed and USB 2.0 connections - eliminates need for separate hubs in embedded host designs |
| Ghost Charging | Each DS port emulates a Dedicated Charging Port (DCP) without upstream host connection - enables battery top-up in docked tablet/smartphone scenarios |
| ACA-Dock Mode | Enables simultaneous charging and data transfer when smartphone/tablet acts as USB host - compliant with BC v1.2 accessory charger adapter specification |
| USB-to-I2C Bridge | Vendor-command interface allows host PC to program external ASSPs or EEPROM via USB - eliminates dedicated I2C master MCU |
| Flexible Configuration | Pin-straps define VID, PID, port count, power switch polarity, and ganged/individual control - reduces BOM vs. EEPROM-only solutions |
Applications
| Docking Station Hub | Embedded Host Interface |
|---|---|
|
Use Scenario: Multi-peripheral docking station connecting laptop to monitor, storage, keyboard, and smartphone. IC Role / Device Role / Timing Role: Central USB hub controller managing upstream host negotiation, downstream port arbitration, and BC v1.2 charging state machine. Use Value: Single-chip solution replaces dual-hub + charging IC design; shared-link ports reduce PCB layer count and routing complexity. |
Use Scenario: Industrial tablet with onboard USB peripherals (camera, barcode scanner, USB-to-serial adapter). IC Role / Device Role / Timing Role: Embedded hub providing simultaneous SS camera streaming and FS/LS peripheral control under single USB 2.0 enumeration. Use Value: Shared-link capability allows co-location of high-bandwidth and legacy devices on same physical port - no external mux required. |
| Smart Display Hub | Set-Top Box Expansion |
|
Use Scenario: Digital signage display with USB-C upstream and multiple downstream ports for media sticks, keyboards, and firmware update dongles. IC Role / Device Role / Timing Role: USB 3.2 Gen 1 hub with ACA-Dock support enabling smartphone-as-host content upload while maintaining charging. Use Value: Eliminates need for separate charging circuitry; ghost charging maintains battery during firmware updates without host dependency. |
Use Scenario: Cable set-top box adding USB storage, wireless adapter, and IR blaster via front-panel ports. IC Role / Device Role / Timing Role: Robust hub controller with industrial temp rating and integrated overcurrent protection for unattended consumer deployment. Use Value: Built-in GPIO-controlled power switches and OCP reduce external component count; pin-strapped configuration simplifies mass production. |
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-BVXC | 4-port USB 3.0 hub (no shared-link); lacks DS1/DS2 shared-link capability and ACA-Dock support | Suitable for basic docking where only native USB 3.0 expansion is needed; no embedded dual-protocol requirement | Select when shared-link and ACA-Dock features are unnecessary and port count ≤4 suffices |
| CYUSB3328-BVXC | 8-port hub (4× SS + 4× USB 2.0); adds two extra shared-link ports but omits pin-strap configuration support | Targeted at high-density embedded systems needing >6 ports; requires I2C/eFuse configuration instead of hardware strapping | Choose when maximum port density is critical and factory programming infrastructure exists |
Compared with CYUSB3324-BVXC and CYUSB3328-BVXC, the CYUSB3326-BVXC uniquely balances mid-density port count (6), shared-link flexibility (2 ports), ACA-Dock capability, and pin-strap configurability - making it optimal for cost-sensitive, field-configurable docking and embedded host applications.
Availability
CYUSB3326-BVXC is available at Aetrix Electronics and suitable for docking stations, embedded host interfaces, smart displays, and set-top box expansions requiring stable component supply, industrial temperature operation, and USB BC v1.2 charging compliance.
Supply support for CYUSB3326-BVXC 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 automotive, industrial, and consumer markets.
CYUSB3326-BVXC belongs to the EZ-USB™ HX3 family - designed specifically for USB 3.2 Gen 1 hub applications demanding integrated charging, embedded shared-link topology, and flexible configuration in space-constrained systems.
FAQ
Does CYUSB3326-BVXC support USB 3.2 Gen 2 (10 Gbps)?
No. CYUSB3326-BVXC is compliant with USB 3.2 Gen 1 (5 Gbps) and fully backward-compatible with USB 2.0 High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps). It does not implement USB 3.2 Gen 2 or Gen 2×2 physical layers or protocols.
Can the shared-link ports operate in USB 2.0 mode only?
Yes. DS1 and DS2 support exclusive USB 2.0 operation when configured via pin-straps or I2C to disable SuperSpeed functionality - retaining full HS/FS/LS compatibility, BC v1.2 charging, and Multi-TT support without SS lane activation.
What is the role of the ARM® Cortex®-M0 in firmware updates?
The embedded Cortex®-M0 executes bootloader code that receives firmware images over the upstream USB port and writes them to internal flash or external I2C EEPROM - enabling field upgrades without JTAG or dedicated programming hardware.
Is CYUSB3326-BVXC WHQL-certified for Windows?
Yes. The CYUSB3326-BVXC is Microsoft WHQL-certified for Windows XP through Windows 10/11, with driver support included in standard OS distributions - eliminating need for custom INF files in most deployment scenarios.
CYUSB3326-BVXC 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-VFBGA (6x6)
CYUSB3326-BVXC FAQ
1.How can I place an order for CYUSB3326-BVXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3326-BVXC 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-BVXC reliable?
The price and inventory of CYUSB3326-BVXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3326-BVXC is usually 5 days.
3.What payment methods are accepted for CYUSB3326-BVXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3326-BVXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3326-BVXC?
CYUSB3326-BVXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3326-BVXC 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-BVXC?
For technical support, including CYUSB3326-BVXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3326-BVXC requirements.
6.How does Aetrix verify that CYUSB3326-BVXC is sourced from the original manufacturer or authorized distributors?
All CYUSB3326-BVXC 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-BVXC meets industry standards.
7.What is the process for return or replacement of CYUSB3326-BVXC?
All CYUSB3326-BVXC units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3326-BVXC, 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-BVXC part is unused and in its original packaging.
Return procedure for CYUSB3326-BVXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3326-BVXC Tags
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CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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SLB9670VQ20FW785XTMA1
Infineon Technologies
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SLB9672XU20FW1523XTMA1
Infineon Technologies
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SLB9673XU20FW2613XTMA1
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CYPD3125-40LQXIT
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AT97SC3204-U2A1A-20
Microchip Technology
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AT97SC3204-U2A1A-10
Microchip Technology
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SLM9670AQ20FW1311XTMA1
Infineon Technologies
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SLB9672XU20FW1613XTMA1
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SLB9672AU20FW1613XTMA1
Infineon Technologies
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SLB9673AU20FW2613XTMA1
Infineon Technologies
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