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Infineon Technologies CYUSB3328-88LTXC
- Part No.:
- CYUSB3328-88LTXC
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 88-VFQFN Exposed Pad
- Datasheet:
-
CYUSB3328-88LTXC.pdf
- Description:
- IC USB 3.0 HUB 4-PORT 88QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,555
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Product details
Overview
CYUSB3328-88LTXC from Infineon is a USB 3.2 Gen 1 (5 Gbps) hub controller with eight downstream ports (4 SuperSpeed + 4 USB 2.0), integrated ARM® Cortex®-M0 CPU, USB Battery Charging v1.2 compliance, and shared-link capability for embedded systems. It supports ghost charging, ACA-Dock mode, and pin-strapped configuration in an 88-pin QFN (10 × 10 × 1.0 mm) package rated for –40°C to +85°C industrial operation.
For engineers reviewing the CYUSB3328-88LTXC datasheet, CYUSB3328-88LTXC pinout, CYUSB3328-88LTXC application, or CYUSB3328-88LTXC equivalent, this device delivers verified multi-port USB 3.2 hub functionality with embedded firmware configurability, BC v1.2 charging control per port, and flexible I2C-based system integration - critical for docking stations, monitors, and industrial embedded hubs requiring stable power management and dual-speed device connectivity.
Technical Context
The CYUSB3328 implements two independent hub controllers: a USB 3.2 Gen 1 SS hub supporting U0–U3 link states and full-duplex 5 Gbps operation, and a USB 2.0 hub with four transaction translators (Multi-TT), L0–L3 power states, and HS/FS/LS compatibility. Its integrated Cortex-M0 subsystem (16 KB RAM, 32 KB ROM) handles real-time battery charging logic, vendor-command execution, and GPIO-controlled overcurrent/power enable functions.
Configuration is supported via pin-straps (VID/PID, port count, power switch ganging), eFuse, or I2C EEPROM - enabling factory-programmed or field-upgradable settings. The device natively supports DP/DM signal swapping for PCB routing flexibility and includes dedicated hardware for ACA-Dock mode, allowing simultaneous charging and data transfer when a smartphone or tablet acts as host.
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 | 8 total: 4 SS + 4 USB 2.0; supports shared-link mode for dual-device per port |
| Battery Charging | USB BC v1.2 compliant per DS port; ghost charging enabled without upstream host connection |
| CPU Core | ARM® Cortex®-M0 with 16 KB RAM and 32 KB ROM for firmware execution and GPIO control |
| Configuration Interface | I2C slave/master/multi-master; supports EEPROM programming and USB-based ISP |
| Operating Temp | –40°C to +85°C industrial grade; validated for continuous operation in embedded enclosures |
| Package | 88-pin QFN (10 × 10 × 1.0 mm); lead-free, RoHS-compliant, moisture sensitivity level 3 |
Pinout & Package
Package: 88-pin QFN (10 mm × 10 mm × 1.0 mm), exposed thermal pad, 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_3P3 | I/O Power Supply | 3.3 V supply for USB 2.0 PHY, GPIOs, and I2C interface; requires local decoupling |
| VDDA_1P2 | Analog Core Supply | 1.2 V supply for SS PHY and internal PLL; low-noise regulation required |
| US_DP / US_DM | Upstream Differential Pair | Connects to host controller; supports SS and USB 2.0 signaling on same pins |
| DS1_SSTXP/M / DS1_SSRXP/M | Downstream SS Pair 1 | SuperSpeed transmit/receive for DS port 1; supports lane reversal via firmware |
| DS1_DMP / DS1_DMM | Downstream USB 2.0 Pair 1 | High-Speed/Full-Speed differential pair; shared physical port with DS1_SS in shared-link mode |
| I2C_SDA / I2C_SCL | I2C Interface | Configurable as master or slave; used for EEPROM programming and external ASSP firmware upgrade |
| GPIO[7:0] | General-Purpose I/O | Programmable for overcurrent detection, power switch control, LED status, or custom logic |
Key Features
| Feature | Design Value |
|---|---|
| Shared Link Architecture | Enables one DS port to concurrently connect a SuperSpeed device and a USB 2.0 peripheral - doubling effective port count in space-constrained embedded designs |
| Ghost Charging | Each DS port emulates a Dedicated Charging Port (DCP) without upstream host presence, delivering up to 1.5 A per port under BC v1.2 |
| ACA-Dock Mode | Supports simultaneous charging and data transfer when smartphone/tablet acts as USB host - validated for Android and iOS accessory use cases |
| USB-to-I2C Bridge | Vendor-command firmware enables EZ-USB™ HX3 to act as USB-side I2C master, allowing host PC to program external sensors or EEPROMs via USB |
| Pin-Strap Configuration | Hardware-selectable VID/PID, port enable mask, power switch polarity, and BC v1.2 enable per port - eliminates need for external configuration EEPROM in cost-sensitive designs |
Applications
| Docking Station Hub | Industrial Embedded Monitor |
|---|---|
Use Scenario: Multi-peripheral docking station connecting laptop to display, storage, keyboard, and Ethernet adapter. IC Role / Device Role / Timing Role: Central USB 3.2 hub controller managing concurrent SS and USB 2.0 traffic across 8 downstream devices with dynamic power switching. Use Value: Eliminates need for discrete USB 2.0 and 3.0 hub ICs; shared-link mode allows dual-device attachment per port, reducing connector count and PCB area. | Use Scenario: Factory-floor HMI monitor with integrated USB ports for barcode scanner, flash drive, and service keyboard. IC Role / Device Role / Timing Role: Industrial-grade hub providing robust BC v1.2 charging and ESD-tolerant USB connectivity in wide-temperature environments. Use Value: Ghost charging enables peripheral power-up before host boot; industrial temp rating ensures reliability in uncooled enclosures. |
| Smart TV USB Hub | Medical Imaging Peripheral Dock |
Use Scenario: 4K Smart TV with front-panel USB ports for streaming sticks, game controllers, and external storage. IC Role / Device Role / Timing Role: USB 3.2 Gen 1 hub with integrated SS/USB 2.0 PHYs and LED indicators for user-visible port status. Use Value: ACA-Dock support allows tablet-as-host use case; Apple charging compatibility ensures broad mobile device interoperability. | Use Scenario: Portable ultrasound or X-ray console docking cradle with USB-connected probes, printers, and PACS upload interfaces. IC Role / Device Role / Timing Role: Certified USB-IF hub (TID# 330000060, 30000074) ensuring regulatory compliance and deterministic latency for medical data transfer. Use Value: WHQL-certified Windows driver support simplifies FDA submission; isolated power control per port meets IEC 60601-1 leakage current requirements. |
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 |
|---|---|---|---|
| CYUSB3326-88LTXC | 6-port variant (2 SS + 2 SS + 2 USB 2.0); lacks shared-link capability on DS1/DS2 | Suitable for lower-port-count docks where dual-device per port is not required | Select when BOM cost reduction is prioritized over port density and shared-link flexibility |
| UPD720210K8-701-BAC-A | Renesas USB 3.0 hub; no integrated Cortex-M0 CPU, no ghost charging, no pin-strapping | Requires external microcontroller for BC v1.2 implementation and firmware updates | Choose only if legacy Renesas ecosystem integration or specific driver stack compatibility is mandatory |
Compared with CYUSB3326-88LTXC and UPD720210K8-701-BAC-A, the CYUSB3328-88LTXC uniquely combines 8-port density, shared-link architecture, and self-contained BC v1.2 ghost charging - reducing system-level component count and eliminating dependency on external firmware controllers in embedded dock and medical applications.
Availability
CYUSB3328-88LTXC is available at Aetrix Electronics and suitable for docking stations, industrial monitors, smart TVs, and medical imaging peripherals requiring stable component supply, long-lifecycle support, and industrial temperature operation.
Supply support for CYUSB3328-88LTXC 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 consumer markets.
The EZ-USB™ HX3 product line was designed specifically for high-integration USB 3.2 Gen 1 hub applications demanding embedded intelligence, battery charging compliance, and flexible configuration - targeting docking, display, and industrial human-machine interface systems.
FAQ
Does CYUSB3328-88LTXC require an external crystal oscillator?
No. The device operates from a single 26 MHz crystal connected to the XTAL_IN/XTAL_OUT pins. This frequency serves both the USB 2.0 PHY and the internal PLL generating clocks for the SS PHY and Cortex-M0 subsystem. No additional oscillators or clock sources are needed for full functionality.
Can CYUSB3328-88LTXC support USB 3.2 Gen 2 (10 Gbps) speeds?
No. CYUSB3328-88LTXC is compliant only with USB 3.2 Gen 1 (5 Gbps) and backward-compatible with USB 2.0 High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps). It does not implement the Gen 2 TX/RX equalization or 10 Gbps signaling layers.
Is the ARM® Cortex®-M0 firmware accessible for customer modification?
Yes. Infineon provides the Blaster Plus configuration tool and SDK supporting custom firmware development. Customers can reprogram the internal ROM-resident bootloader via I2C or USB to deploy application-specific logic for GPIO control, charging profiles, or vendor-command extensions.
What is the maximum sustained power dissipation for CYUSB3328-88LTXC in the 88-pin QFN package?
At full 8-port operation with all ports active at 5 Gbps and BC v1.2 charging enabled, typical power consumption is 1.25 W. The 88-pin QFN package is rated for continuous operation up to 1.5 W under industrial ambient conditions (–40°C to +85°C) with recommended PCB copper pour and thermal vias beneath the exposed pad.
CYUSB3328-88LTXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HX3
- Package/Case:
- 88-VFQFN Exposed Pad
- 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:
- 88-QFN (10x10)
CYUSB3328-88LTXC FAQ
1.How can I place an order for CYUSB3328-88LTXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3328-88LTXC 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 CYUSB3328-88LTXC reliable?
The price and inventory of CYUSB3328-88LTXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3328-88LTXC is usually 5 days.
3.What payment methods are accepted for CYUSB3328-88LTXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3328-88LTXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3328-88LTXC?
CYUSB3328-88LTXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3328-88LTXC 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 CYUSB3328-88LTXC?
For technical support, including CYUSB3328-88LTXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3328-88LTXC requirements.
6.How does Aetrix verify that CYUSB3328-88LTXC is sourced from the original manufacturer or authorized distributors?
All CYUSB3328-88LTXC 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 CYUSB3328-88LTXC meets industry standards.
7.What is the process for return or replacement of CYUSB3328-88LTXC?
All CYUSB3328-88LTXC units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3328-88LTXC, 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 CYUSB3328-88LTXC part is unused and in its original packaging.
Return procedure for CYUSB3328-88LTXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3328-88LTXC 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
Infineon Technologies
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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
Infineon Technologies
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SLB9672AU20FW1613XTMA1
Infineon Technologies
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SLB9673AU20FW2613XTMA1
Infineon Technologies
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