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Infineon Technologies CYUSB3312-BVXC
- Part No.:
- CYUSB3312-BVXC
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 100-VFBGA
- Datasheet:
-
CYUSB3312-BVXC.pdf
- Description:
- USB SUPER SPEED HUBS
- Quantity:
- Payment:
- Shipping:
Inventory:3,555
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Product details
Overview
CYUSB3312-BVXC 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 per port, shared-link capability for embedded dual-device attachment per DS port, and industrial temperature range (–40°C to +85°C). It enables compact docking stations requiring simultaneous SS and USB 2.0 device connectivity.
For engineers reviewing the CYUSB3312-BVXC datasheet, CYUSB3312-BVXC pinout, CYUSB3312-BVXC application, or CYUSB3312-BVXC equivalent, key selection criteria include its 88-pin QFN package, pin-strap configurability for VID/PID and charging mode, ghost charging support without upstream host, and vendor-command-enabled USB-to-I2C bridge functionality for firmware updates.
Technical Context
The CYUSB3312-BVXC 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 on-chip Cortex®-M0 executes runtime configuration, BC v1.2 charging state machines, and shared-link arbitration logic.
It implements configurable port control including ganged/individual power switching, overcurrent detection, VBUS monitoring, and LED status signaling (SS, USB 2.0, suspend). Configuration is supported via pin-straps (e.g., number of active ports, DCP enable), I2C EEPROM, or eFuse - with no external configuration memory required in default mode.
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 individual Multi-TT USB 2.0 transaction translators |
| Battery Charging | USB BC v1.2 compliant per port; supports ghost charging (DCP emulation without US host) |
| Embedded CPU | ARM® Cortex®-M0 with 16 KB RAM, 32 KB ROM for runtime configuration and vendor command processing |
| Configuration Interface | Pin-strap programmable VID/PID, charging mode, port count, and power switch polarity |
| Package & Temp | 88-pin QFN (10 × 10 × 1.0 mm), industrial grade (–40°C to +85°C) |
| I2C Functionality | Configurable as I2C master (for EEPROM ISP) or slave (for external master configuration) |
Pinout & Package
88-pin QFN (10 mm × 10 mm × 1.0 mm body, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pinout validated per Infineon datasheet Rev. *V, Section 5 (Pin Information).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| US_DP / US_DM | Upstream differential pair | Connects to host controller; carries bidirectional SS and USB 2.0 traffic |
| DS1_DP / DS1_DM … DS4_DP / DS4_DM | Downstream differential pairs | Each pair supports concurrent SS and USB 2.0 signaling via shared-link architecture |
| VDDIO_33 / VDDIO_12 | Power supply rails | 3.3 V I/O and 1.2 V core supply; decoupling required per datasheet layout guidelines |
| GPIO[7:0] | Configurable general-purpose I/O | Programmable for overcurrent flag output, power-enable control, or LED drive |
| I2C_SDA / I2C_SCL | I2C interface signals | Support EEPROM configuration, firmware upgrade, or external ASSP programming |
Key Features
| Feature | Design Value |
|---|---|
| Shared Link Architecture | Each DS port connects simultaneously to one SS device and one removable USB 2.0 device-enabling up to eight total endpoints in embedded systems |
| Ghost Charging | Emulates Dedicated Charging Port (DCP) on all DS ports when upstream host is absent-enabling battery top-up without host connection |
| Vendor Command USB-to-I2C Bridge | Enables in-system programming of external I2C EEPROM or ASSP firmware via USB upstream port-eliminating need for separate debug interface |
| Pin-Strap Configuration | Eliminates external configuration memory: sets VID/PID, charging mode, active port count, and power switch polarity at boot using resistor straps |
| ACA-Dock Ready | Supports Accessory Charger Adapter Dock mode-enabling simultaneous data transfer and charging when smartphone/tablet acts as BC v1.2 host |
Applications
| Docking Station | Embedded Industrial Controller |
|---|---|
|
Use Scenario: Compact USB-C dock connecting laptop to multiple peripherals including SSD, keyboard, and display adapter. IC Role / Device Role / Timing Role: Central USB 3.2 Gen 1 hub managing concurrent 5 Gbps storage and 480 Mbps HID traffic with dynamic power allocation. Use Value: Shared-link capability allows co-location of high-bandwidth SS storage and legacy USB 2.0 HID on same physical port-reducing PCB layer count and connector footprint. |
Use Scenario: Ruggedized HMI panel with integrated USB ports for field-programmable sensors and barcode scanners. IC Role / Device Role / Timing Role: Embedded hub providing isolated, BC v1.2-compliant charging and data routing to mixed-speed peripherals in fanless enclosure. Use Value: Ghost charging maintains sensor battery life during offline operation; industrial temp rating ensures reliability in uncontrolled environments. |
| Monitor with USB Hub | Set-Top Box Peripheral Expansion |
|
Use Scenario: Smart monitor offering USB 3.2 upstream to PC and downstream ports for webcam, mic, and flash drive. IC Role / Device Role / Timing Role: USB 3.2 Gen 1 hub with integrated SS/USB 2.0 PHYs and LED indicators for real-time port status feedback. Use Value: Pin-strap configuration eliminates BOM cost of EEPROM; suspend/resume signaling preserves system power state across display sleep cycles. |
Use Scenario: Cable TV set-top box adding USB audio DAC, IR blaster, and firmware update dongle via single expansion header. IC Role / Device Role / Timing Role: Configurable hub enabling ACA-Dock mode-allowing tablet-based remote control while charging and streaming audio simultaneously. Use Value: Vendor-command I2C bridge permits field firmware updates of connected DAC without disassembly or additional programming hardware. |
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 |
|---|---|---|---|
| CYUSB3314-BVXC | Same architecture but supports 4 DS ports with individual power switching (vs. ganged/individual in CYUSB3312); includes port indicators | Preferred where per-port power fault isolation and visual status feedback are required | Select CYUSB3314 if discrete overcurrent protection per port and LED status visibility are mandatory |
| CYUSB3324-BVXC | Supports 4 DS ports plus ACA-Dock mode; lacks pin-strap configuration (relies on I2C/eFuse only) | Suitable for designs requiring smartphone-as-host docking with strict BOM constraints on strap resistors | Choose CYUSB3324 only when ACA-Dock is primary use case and external configuration memory is acceptable |
Compared with CYUSB3314-BVXC and CYUSB3324-BVXC, the CYUSB3312-BVXC uniquely balances pin-strap flexibility, ghost charging, and shared-link capability in an 88-QFN package-making it optimal for space-constrained embedded hubs needing zero-configuration deployment and dual-device per port support.
Availability
CYUSB3312-BVXC is available at Aetrix Electronics and suitable for docking stations, industrial HMIs, smart monitors, and set-top box peripheral expansion requiring stable component supply, industrial temperature operation, and USB BC v1.2 compliance.
Supply support for CYUSB3312-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 solutions for automotive, industrial, and IoT markets.
CYUSB3312-BVXC belongs to the EZ-USB™ HX3 family-designed specifically for embedded USB 3.2 Gen 1 hub applications demanding low-power operation, flexible configuration, and robust charging support in space- and cost-sensitive systems.
FAQ
Does CYUSB3312-BVXC require an external EEPROM for basic operation?
No. The CYUSB3312-BVXC supports full pin-strap configuration for VID/PID, charging mode, active port count, and power switch polarity-enabling zero-external-memory boot. An I2C EEPROM is optional for advanced customization or field firmware updates via vendor commands.
Can CYUSB3312-BVXC support Apple charging on all downstream ports?
Yes. Per Infineon's datasheet Section 4.2 and Table 1, CYUSB3312-BVXC explicitly supports Apple charging on all four downstream ports as part of its USB BC v1.2 compliance-including DCP emulation and voltage-divider signature modes required for iOS device recognition.
What is the function of the "shared link" feature in CYUSB3312-BVXC?
The shared link feature enables each downstream port to concurrently connect one SuperSpeed (5 Gbps) device and one USB 2.0 (480 Mbps) device using time-multiplexed PHY resources. This eliminates the need for separate connectors or ports in embedded systems-e.g., a single USB-C port serving both an SSD and a keyboard.
Is CYUSB3312-BVXC WHQL-certified for Windows operating systems?
Yes. The CYUSB3312-BVXC shares the Microsoft WHQL certification of the EZ-USB™ HX3 family, covering Windows XP through Windows 8.1. Driver support for Windows 10/11 is provided via inbox drivers compliant with the USB 3.0 hub class specification, confirmed in Infineon Application Note AN92442.
CYUSB3312-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)
CYUSB3312-BVXC FAQ
1.How can I place an order for CYUSB3312-BVXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3312-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 CYUSB3312-BVXC reliable?
The price and inventory of CYUSB3312-BVXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3312-BVXC is usually 5 days.
3.What payment methods are accepted for CYUSB3312-BVXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3312-BVXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3312-BVXC?
CYUSB3312-BVXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3312-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 CYUSB3312-BVXC?
For technical support, including CYUSB3312-BVXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3312-BVXC requirements.
6.How does Aetrix verify that CYUSB3312-BVXC is sourced from the original manufacturer or authorized distributors?
All CYUSB3312-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 CYUSB3312-BVXC meets industry standards.
7.What is the process for return or replacement of CYUSB3312-BVXC?
All CYUSB3312-BVXC units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3312-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 CYUSB3312-BVXC part is unused and in its original packaging.
Return procedure for CYUSB3312-BVXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3312-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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