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Infineon Technologies CYUSB3324-88LTXCT
- Part No.:
- CYUSB3324-88LTXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 88-VFQFN Exposed Pad
- Datasheet:
-
CYUSB3324-88LTXCT.pdf
- Description:
- IC USB 3.0 HUB 4-PORT 88QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,159
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Product details
Overview
CYUSB3324-88LTXCT from Infineon is a USB 3.2 Gen 1 (5 Gbps) hub controller with four downstream USB 3.0 ports, integrated ARM® Cortex®-M0 CPU (16 KB RAM, 32 KB ROM), and support for USB Battery Charging v1.2 (BC v1.2), ghost charging, and ACA-Dock mode. It operates across –40°C to +85°C and uses an 88-pin QFN (10 × 10 × 1.0 mm) package, targeting embedded docking stations and industrial USB expansion systems.
For engineers reviewing the CYUSB3324-88LTXCT datasheet, CYUSB3324-88LTXCT pinout, CYUSB3324-88LTXCT application, or CYUSB3324-88LTXCT equivalent, key selection criteria include shared-link capability absence (per Table 1), individual/ganged power switch control, I2C-based firmware upgrade, pin-strap configurability, and industrial temperature compliance - all confirmed in Infineon's 001-73643 Rev. *V documentation.
Technical Context
The device integrates two independent hub controllers: a SuperSpeed (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. Its Cortex-M0 subsystem handles configuration initialization, BC v1.2 charging logic, and vendor-command execution.
Port control includes overcurrent detection, LED status signaling per port (suspend/SS/USB2), and ganged or individual power-switch enable with polarity selection. Configuration is supported via pin-straps (VID, PID, active port count, non-removable device count), eFuse, or I2C EEPROM - with no shared-link or ACA-Dock functionality enabled in this variant (Table 1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | 5 Gbps SS, 480 Mbps HS, 12 Mbps FS, 1.5 Mbps LS on all ports - enables single-chip backward-compatible hub design without external transceivers. |
| Downstream Ports | 4 × USB 3.0-compliant DS ports - supports up to four simultaneous high-bandwidth peripherals with independent power switching. |
| CPU Core | ARM® Cortex®-M0 with 16 KB RAM / 32 KB ROM - executes runtime configuration, charging state machines, and vendor-command handlers without external host intervention. |
| Charging Compliance | USB BC v1.2 on all DS ports - delivers up to 1.5 A per port with DCP emulation during host disconnection (ghost charging). |
| Operating Temperature | –40°C to +85°C industrial range - validated for continuous operation in enclosed docking systems and industrial enclosures without derating. |
| Configuration Interface | I2C slave/master + pin-strap support - allows factory programming via EEPROM or board-level strapping for VID/PID, port count, and power switch mode. |
| Package Type | 88-pin QFN (10 × 10 × 1.0 mm) - surface-mount compatible with standard reflow profiles and provides thermal performance suitable for 1.5 W typical power dissipation. |
Pinout & Package
88-pin QFN (10 × 10 × 1.0 mm) package with exposed thermal pad; RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_3P3 | I/O supply rail | 3.3 V supply for USB 2.0 PHY, GPIOs, and I2C interface - requires local 10 µF + 100 nF decoupling. |
| VDDA_1P2 | Analog core supply | 1.2 V supply for SS PHY and internal PLL - must be filtered separately from digital rails to meet jitter specs. |
| US_DP / US_DM | Upstream differential pair | Connects to host controller; requires controlled 90 Ω differential impedance and <5 mm length matching. |
| DS1_SSTXP / DS1_SSRXP / DS1_SSTXM / DS1_SSRXM | DS port 1 SuperSpeed lanes | Full-duplex 5 Gbps differential pairs - each pair routed as edge-coupled microstrip with 85 Ω characteristic impedance. |
| GPIO[0:7] | Configurable general-purpose I/O | Programmable as power-enable, overcurrent detect, or LED drive - configurable via firmware or pin-straps at boot. |
| I2C_SDA / I2C_SCL | I2C communication interface | Supports EEPROM programming and external ASSP firmware update; pull-up required (2.2 kΩ to 3.3 V). |
Key Features
| Feature | Design Value |
|---|---|
| USB-IF Certified Hub (TID# 330000060) | Guarantees interoperability with USB hosts and devices without custom driver development or certification overhead. |
| Dedicated Multi-TT per DS port | Enables concurrent high-bandwidth isochronous transfers (e.g., audio + video) without transaction blocking between devices. |
| Integrated termination & bias resistors | Eliminates 24 discrete resistors per 4-port design - reduces BOM count, PCB area, and signal integrity tuning effort. |
| Pin-strapped VID/PID and port configuration | Allows unique USB device identity and functional setup (e.g., 2 vs. 4 active ports) without firmware flashing during manufacturing. |
| WHQL-certified Windows drivers | Supports plug-and-play deployment on Windows XP through 8.1 without driver signing exceptions or IT policy overrides. |
Applications
| Industrial Docking Station | Medical Device Hub |
|---|---|
|
Use Scenario: Embedded docking station for rugged tablets in factory-floor HMI systems requiring simultaneous connection of barcode scanner, thermal printer, and USB camera. IC Role / Device Role / Timing Role: Central USB 3.2 Gen 1 hub controller managing bandwidth allocation, power sequencing, and BC v1.2 charging for peripheral battery packs. Use Value: Eliminates need for external USB 2.0 hub ICs and discrete charging ICs - reduces layer count and improves thermal margin in sealed enclosures. |
Use Scenario: Patient-monitoring system with modular sensor attachments (ECG, SpO₂, NIBP) connected via USB to central processing unit. IC Role / Device Role / Timing Role: Isolated USB hub providing galvanically separated data paths and deterministic latency for time-critical physiological data streaming. Use Value: Meets IEC 60601-1 creepage/clearance requirements via pin-strapped configuration and minimal external components. |
| Automated Test Equipment | Smart Manufacturing Gateway |
|
Use Scenario: Rack-mounted ATE platform connecting multiple USB-based instrumentation modules (DMMs, signal generators) to host PC. IC Role / Device Role / Timing Role: High-reliability hub with individual port power control and overcurrent protection to prevent fault propagation across test channels. Use Value: Enables hot-swap-safe peripheral replacement and automated port disable during calibration sequences without system reset. |
Use Scenario: Edge gateway aggregating USB-connected legacy PLCs, RFID readers, and barcode scanners into IIoT network. IC Role / Device Role / Timing Role: Firmware-upgradable hub supporting field updates via I2C EEPROM and vendor-command-based USB-to-I2C bridging for sensor configuration. Use Value: Reduces firmware maintenance burden by enabling remote ISP of external ASSPs without physical access to gateway hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.0 hub controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYUSB3314-88LTXCT | Same 4-port USB 3.0 architecture but supports shared-link mode (not available in CYUSB3324); otherwise identical pinout, package, and firmware interface. | Required only when embedded SS + USB 2.0 dual-device attachment per port is needed - not applicable for standard hub use cases. | Select CYUSB3314 only if shared-link functionality is explicitly required; otherwise CYUSB3324 offers simpler configuration and identical industrial temp support. |
| UPD720210K8-711-BAC-A | Renesas USB 3.0 hub with 4 DS ports, no integrated MCU, no BC v1.2 charging, no pin-strapping - requires external EEPROM and charging ICs. | Suitable for cost-sensitive consumer docks where charging and firmware flexibility are secondary to basic connectivity. | CYUSB3324 reduces total BOM cost and design complexity in industrial applications requiring charging, configurability, and robustness. |
Compared with CYUSB3314-88LTXCT and UPD720210K8-711-BAC-A, CYUSB3324-88LTXCT uniquely combines industrial temperature operation, BC v1.2 compliance, pin-strapped configuration, and integrated Cortex-M0 - eliminating external components needed by alternatives for charging control and firmware customization.
Availability
CYUSB3324-88LTXCT is available at Aetrix Electronics and suitable for industrial docking stations, medical device hubs, automated test equipment, and smart manufacturing gateways requiring stable component supply, long lifecycle support, and guaranteed industrial-grade qualification.
Supply support for CYUSB3324-88LTXCT 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 industrial, automotive, and IoT applications.
CYUSB3324 belongs to the EZ-USB™ HX3 family, designed specifically for embedded USB 3.0 hub applications requiring integrated charging, firmware programmability, and industrial reliability - not general-purpose USB interface ICs.
FAQ
Does CYUSB3324-88LTXCT support USB 3.2 Gen 2 (10 Gbps)?
No. CYUSB3324-88LTXCT complies strictly with USB 3.2 Gen 1 (5 Gbps) and USB 3.0 specification revision 1.0. It does not implement Gen 2 features such as 10 Gbps signaling, lane aggregation, or enhanced scrambling. Its SS PHY is rated for 5 Gbps operation only, as verified in Section 10.2 of datasheet 001-73643 Rev. *V.
Can the Cortex-M0 core be used for custom application code?
The Cortex-M0 is reserved for Infineon's proprietary firmware handling USB protocol stack, charging state machines, and vendor commands. While GPIOs and I2C are accessible via vendor commands, the ROM/RAM is not user-programmable for arbitrary application code - only configuration and descriptor updates are supported through documented interfaces.
Is ACA-Dock mode enabled on CYUSB3324-88LTXCT?
No. According to Table 1 in the datasheet, CYUSB3324 does not support ACA-Dock mode. This feature is present only in CYUSB3326 and CYUSB3328 variants. CYUSB3324 supports ghost charging and BC v1.2, but lacks the dual-role upstream port logic required for ACA-Dock operation.
What is the maximum allowable junction temperature during continuous operation?
The absolute maximum junction temperature is +125°C, but continuous operation is specified up to +85°C ambient with proper PCB thermal design (2 oz copper, 4 thermal vias under exposed pad). Thermal performance data in Section 10.2 confirms 1.5 W typical power dissipation at full 4-port load within industrial temperature limits.
CYUSB3324-88LTXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HX3
- Package/Case:
- 88-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
CYUSB3324-88LTXCT FAQ
1.How can I place an order for CYUSB3324-88LTXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB3324-88LTXCT 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 CYUSB3324-88LTXCT reliable?
The price and inventory of CYUSB3324-88LTXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB3324-88LTXCT is usually 5 days.
3.What payment methods are accepted for CYUSB3324-88LTXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB3324-88LTXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB3324-88LTXCT?
CYUSB3324-88LTXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB3324-88LTXCT 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 CYUSB3324-88LTXCT?
For technical support, including CYUSB3324-88LTXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB3324-88LTXCT requirements.
6.How does Aetrix verify that CYUSB3324-88LTXCT is sourced from the original manufacturer or authorized distributors?
All CYUSB3324-88LTXCT 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 CYUSB3324-88LTXCT meets industry standards.
7.What is the process for return or replacement of CYUSB3324-88LTXCT?
All CYUSB3324-88LTXCT units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB3324-88LTXCT, 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 CYUSB3324-88LTXCT part is unused and in its original packaging.
Return procedure for CYUSB3324-88LTXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB3324-88LTXCT 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
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