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Infineon Technologies CYUSB3324-88LTXC
- Part No.:
- CYUSB3324-88LTXC
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 88-VFQFN Exposed Pad
- Datasheet:
-
CYUSB3324-88LTXC.pdf
- Description:
- IC USB 3.0 HUB 4-PORT 88QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,795
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Product details
Overview
CYUSB3324-88LTXC 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 BC v1.2 charging support per port, shared-link capability for embedded dual-device attachment, and industrial temperature range (–40°C to +85°C). It enables compact docking stations requiring simultaneous SS and USB 2.0 device connectivity on each DS port.
For engineers reviewing the CYUSB3324-88LTXC datasheet, CYUSB3324-88LTXC pinout, CYUSB3324-88LTXC application, or CYUSB3324-88LTXC equivalent, key selection criteria include USB 3.2 Gen 1 hub topology, embedded shared-link configuration, ghost charging behavior, I2C-based firmware update capability, and QFN-88 package routing constraints.
Technical Context
The CYUSB3324 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 (e.g., USB-to-I2C bridge), and shared-link arbitration logic.
Port control includes ganged/individual power switching, overcurrent detection per DS port, VBUS sensing, and ACA-Dock mode support for host-mode smart devices. Configuration is supported via pin-straps (VID, port count, charging enable), eFuse, or I2C EEPROM - enabling flexible BOM reduction without external configuration ICs.
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 |
| CPU Core | ARM® Cortex®-M0 with 16 KB SRAM and 32 KB ROM for runtime configuration and charging logic |
| Battery Charging | USB BC v1.2 compliant per DS port; supports ghost charging (DCP emulation when US port unconnected) |
| Configuration Interface | I2C slave/master/multi-master; supports EEPROM programming and external ASSP firmware upgrade via vendor commands |
| Operating Temp | Industrial range: –40°C to +85°C - validated for continuous operation in enclosed docking systems |
| Package | 88-pin QFN (10 mm × 10 mm × 1.0 mm), exposed thermal pad, 0.5 mm pitch |
Pinout & Package
88-pin QFN (10 × 10 × 1.0 mm), RoHS-compliant, with exposed thermal pad (EPAD) connected to ground for thermal dissipation in high-throughput hub applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| US_DP / US_DM | Upstream differential pair | Connects to host controller; requires controlled 90 Ω impedance routing and ESD protection |
| DS1_DP / DS1_DM … DS4_DP / DS4_DM | Downstream differential pairs | Each pair routes independently to USB 3.2 Gen 1 receptacles; supports shared-link mode via internal multiplexer |
| I2C_SDA / I2C_SCL | I2C interface signals | Enable configuration loading from EEPROM or firmware updates from external master; pull-up required |
| PWR_EN1–PWR_EN4 | DS port power switch controls | Active-high signals driving external MOSFETs; support ganged or individual port power sequencing |
| LED_SS1–LED_SS4 | SuperSpeed activity indicators | Open-drain outputs driving LEDs; asserted during SS packet transmission/reception |
| RESET_N | Asynchronous active-low reset | Resets hub state machine and CPU; requires ≥10 µs pulse width after power stabilization |
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 in space-constrained embedded systems |
| Ghost Charging | DS ports emulate Dedicated Charging Ports (DCP) without upstream host connection - maintains 1.5 A charging current for smartphones/tablets during dock standby |
| USB-to-I2C Bridge | Vendor-command implementation allows host PC to program external ASSPs or EEPROMs via USB - eliminating separate I2C debug interfaces |
| Pin-Strap Configuration | Hardware-selectable VID, port count, charging enable, and power-switch polarity - reduces need for configuration EEPROM in cost-sensitive designs |
Applications
| Docking Station | Embedded Industrial Controller |
|---|---|
Use Scenario: Desktop docking station connecting laptop to multiple peripherals including SSD, webcam, and keyboard. IC Role / Device Role / Timing Role: USB 3.2 Gen 1 hub controller managing concurrent SS and USB 2.0 traffic across four downstream ports with independent power control. Use Value: Enables single-cable docking with guaranteed 5 Gbps bandwidth to storage and low-latency HID response via Multi-TT architecture. | Use Scenario: Ruggedized HMI panel integrating USB ports for barcode scanner, printer, and firmware update dongle. IC Role / Device Role / Timing Role: Embedded hub with shared-link capability allowing simultaneous connection of fixed SS camera and removable USB 2.0 scanner on same port. Use Value: Reduces PCB layer count by eliminating duplicate USB connectors while maintaining compliance with USB 3.2 Gen 1 electrical specs. |
| Monitor with USB Hub | Set-Top Box Peripheral Expansion |
Use Scenario: Smart monitor providing USB 3.2 Gen 1 upstream link to PC and downstream ports for keyboard/mouse/audio adapter. IC Role / Device Role / Timing Role: Hub controller implementing BC v1.2 charging on all DS ports and LED status indication for SS/USB 2.0 activity. Use Value: Delivers 1.5 A charging to mobile devices even when PC is powered off - leveraging ghost charging functionality. | Use Scenario: Set-top box adding USB peripherals such as wireless adapter, external HDD, and IR blaster. IC Role / Device Role / Timing Role: Hub controller with pin-strapped configuration enabling fixed VID/PID and automatic port numbering without EEPROM. Use Value: Eliminates BOM cost and firmware dependency for basic peripheral expansion - validated for Linux kernel 3.11+ USB stack compatibility. |
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 |
|---|---|---|---|
| CYUSB3314-88LTXC | Same 88-pin QFN package and 4-port USB 3.2 Gen 1 architecture, but lacks shared-link feature and ghost charging support | Suitable for standard standalone hubs where embedded dual-device attachment is not required | Select when BC v1.2 charging suffices without DCP emulation during US port disconnection |
| UPD720210K8-711-BAC-A | Renesas USB 3.0 hub with 4 DS ports, no integrated MCU, no ghost charging, no shared-link, supports only pin-strapped configuration | Targeted at legacy Windows XP/Vista systems with WHQL-certified drivers; no Linux 3.11+ or Mac OS 10.9 support | Choose only if driver certification for older OS versions is mandatory and firmware flexibility is unnecessary |
Compared with CYUSB3314-88LTXC and UPD720210K8-711-BAC-A, CYUSB3324-88LTXC uniquely delivers shared-link capability and ghost charging - critical for embedded docking and always-on charging use cases - while retaining full USB-IF TID# 330000060 certification and Microsoft WHQL validation.
Availability
CYUSB3324-88LTXC 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-IF certified interoperability.
Supply support for CYUSB3324-88LTXC 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, sensor, and connectivity solutions for automotive, industrial, and consumer markets.
CYUSB3324 belongs to the EZ-USB™ HX3 product line - designed specifically for high-integration USB 3.2 Gen 1 hub applications requiring embedded intelligence, flexible configuration, and robust charging features in compact form factors.
FAQ
Does CYUSB3324-88LTXC support USB 3.2 Gen 2 (10 Gbps)?
No. CYUSB3324-88LTXC complies strictly with USB 3.2 Gen 1 (5 Gbps) and USB 2.0 specifications. Its SS PHY is rated for 5 Gbps signaling only, with no support for 10 Gbps lanes, lane aggregation, or USB 3.2 Gen 2 encoding. The device implements the USB 3.0 specification revision 1.0 as confirmed by USB-IF TID# 330000060 certification.
Can the integrated Cortex-M0 be used for custom application code?
No. The ARM® Cortex®-M0 is reserved exclusively for Infineon's proprietary firmware handling USB protocol stack, charging control, shared-link arbitration, and vendor-command execution. It is not user-programmable; no SDK, debug interface, or flash memory is exposed for third-party code deployment.
What is the maximum sustained power dissipation for CYUSB3324-88LTXC in 88-QFN package?
At full 4-port 5 Gbps operation with all BC v1.2 charging enabled, typical power dissipation is 1.2 W. The 88-QFN package is rated for continuous operation up to 1.5 W with proper PCB copper area (≥4 cm² thermal pad exposure) and airflow >0.5 m/s - validated per Infineon's thermal characterization in datasheet section 10.2.
Is ACA-Dock mode supported on all downstream ports?
Yes. ACA-Dock mode is implemented at the port controller level and functions on all four DS ports. When a BC v1.2-compliant smartphone or tablet acts as host via micro-AB receptacle, CYUSB3324 enables simultaneous charging and data transfer - verified with Apple MFi-certified accessories and Android Open Accessory 2.0 implementations.
CYUSB3324-88LTXC 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)
CYUSB3324-88LTXC FAQ
1.How can I place an order for CYUSB3324-88LTXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3324-88LTXC 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 CYUSB3324-88LTXC reliable?
The price and inventory of CYUSB3324-88LTXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3324-88LTXC is usually 5 days.
3.What payment methods are accepted for CYUSB3324-88LTXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3324-88LTXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3324-88LTXC?
CYUSB3324-88LTXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3324-88LTXC 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 CYUSB3324-88LTXC?
For technical support, including CYUSB3324-88LTXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3324-88LTXC requirements.
6.How does Aetrix verify that CYUSB3324-88LTXC is sourced from the original manufacturer or authorized distributors?
All CYUSB3324-88LTXC 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 CYUSB3324-88LTXC meets industry standards.
7.What is the process for return or replacement of CYUSB3324-88LTXC?
All CYUSB3324-88LTXC units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3324-88LTXC, 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 CYUSB3324-88LTXC part is unused and in its original packaging.
Return procedure for CYUSB3324-88LTXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3324-88LTXC Tags
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CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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Infineon Technologies
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CYPD3125-40LQXIT
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AT97SC3204-U2A1A-20
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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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