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Infineon Technologies CYUSB2302-68LTXI
- Part No.:
- CYUSB2302-68LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CYUSB2302-68LTXI.pdf
- Description:
- IC USB 2.0 HUB 2-PORT 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,600
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Product details
Overview
CYUSB2302-68LTXI from Infineon is a USB 2.0-only hub controller supporting two downstream ports, integrated ARM® Cortex®-M0 CPU (16 KB RAM, 32 KB ROM), USB Battery Charging v1.2 compliance on both ports, industrial temperature range (–40°C to +85°C), and 68-pin QFN (8 × 8 × 1.0 mm) packaging. It enables embedded docking stations with ganged power switching and pin-strapping-free configuration.
For engineers reviewing the CYUSB2302-68LTXI datasheet, CYUSB2302-68LTXI pinout, CYUSB2302-68LTXI application, or CYUSB2302-68LTXI equivalent, this device serves as a cost-optimized, BC v1.2-compliant USB 2.0 hub for space-constrained industrial docking and peripheral aggregation where USB 3.x bandwidth is not required.
Technical Context
The CYUSB2302 implements a dedicated USB 2.0 hub controller with four transaction translators (one per DS port), full LPM support (L0–L3), and suspend/resume/remote wake-up signaling. Its Cortex-M0 subsystem handles battery charging control, string descriptor management, and vendor-command execution for USB-to-I2C bridging.
It integrates port controllers with overcurrent detection, LED status drive (suspend/USB 2.0), and ganged power switch enable logic. Configuration is fixed via eFuse or I2C EEPROM-no pin-straps-making it suitable for production systems requiring deterministic boot behavior and minimal external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Downstream Ports | 2 × USB 2.0 ports (FS/LS compatible); no SS capability - reduces PHY complexity and BOM cost |
| Charging Compliance | USB BC v1.2 on both DS ports - enables DCP emulation and ACA-Dock support for smartphone/tablet host mode |
| CPU Core | ARM Cortex-M0 @ up to 48 MHz with 16 KB RAM/32 KB ROM - executes firmware for charging control and I2C bridge functions |
| Power Management | USB 2.0 LPM (L0–L3) + hardware-based overcurrent detection - ensures robust operation under load variation |
| Package | 68-pin QFN, 8 × 8 × 1.0 mm, 0.4 mm pitch - supports automated assembly and thermal dissipation in compact enclosures |
| Temperature Range | –40°C to +85°C industrial grade - validated for deployment in factory automation and outdoor kiosk environments |
| I²C Interface | Configurable as slave/master/multi-master - enables EEPROM-based configuration and in-system programming of external devices |
Pinout & Package
68-pin QFN (8 × 8 × 1.0 mm, 0.4 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_3P3 | I/O Power Supply | 3.3 V supply for USB transceivers and GPIOs; requires local 10 µF + 100 nF decoupling |
| VDDA_1P2 | Analog Core Supply | 1.2 V analog supply for USB PHY; must be filtered separately from digital rails |
| US_DM / US_DP | Upstream Differential Pair | Connects to host controller; internal 1.5 kΩ pull-up on DP enables LS/FS/HS enumeration |
| DS1_DM / DS1_DP / DS2_DM / DS2_DP | Downstream Differential Pairs | Each pair drives one USB 2.0 device; integrated termination eliminates external resistors |
| PWR_EN1 / PWR_EN2 | Port Power Enable Outputs | Ganged control signals driving external N-channel MOSFETs; active-high, 3.3 V logic |
| OVR_CURR1 / OVR_CURR2 | Overcurrent Detection Inputs | Active-low open-drain inputs monitoring current sense resistors; triggers automatic port disable |
| I2C_SDA / I2C_SCL | I²C Bus Interface | Supports configuration loading from EEPROM or runtime firmware updates from host via USB |
| LED_SUSP / LED_ACT1 / LED_ACT2 | Status Indicator Outputs | Drive external LEDs for suspend and per-port activity; 5 mA sink capability |
Key Features
| Feature | Design Value |
|---|---|
| USB Battery Charging v1.2 | DCP emulation on both DS ports without host connection - enables ghost charging for unattended peripherals |
| Integrated Cortex-M0 Subsystem | Enables field-upgradable firmware for charging policy updates and custom vendor command implementation |
| USB-to-I2C Bridge Functionality | Allows host PC to program external ASSPs or EEPROMs via USB - eliminates need for separate I2C debug interface |
| Ganged Power Switch Control | Single PWR_EN signal controls both downstream ports - simplifies power sequencing and reduces component count |
| No Pin-Strap Configuration | Configuration stored in eFuse or I2C EEPROM - ensures repeatable manufacturing and eliminates layout sensitivity |
Applications
| Industrial Docking Station | Medical Peripheral Hub |
|---|---|
Use Scenario: Compact docking station for rugged tablets used in warehouse logistics, connecting barcode scanners, printers, and RFID readers via USB 2.0. IC Role / Device Role / Timing Role: Central USB 2.0 hub managing concurrent low-bandwidth peripherals with guaranteed BC v1.2 charging for attached scanners. Use Value: Eliminates need for external charging ICs while maintaining deterministic power-on behavior via eFuse configuration. | Use Scenario: Patient monitor add-on module aggregating USB-connected ECG leads, pulse oximeters, and thermal printers in clinical settings. IC Role / Device Role / Timing Role: Isolated USB 2.0 hub providing galvanically separated data paths and independent overcurrent protection per port. Use Value: Meets IEC 60601-1 creepage/clearance requirements through simplified layout and integrated fault handling. |
| Factory Automation Controller | Retail Kiosk Backplane |
Use Scenario: PLC-mounted USB hub interfacing with legacy HID devices (keyboards, trackballs) and firmware update tools in harsh industrial environments. IC Role / Device Role / Timing Role: Robust USB 2.0 repeater with industrial temp rating and hardware-based overcurrent response (< 10 µs). Use Value: Reduces system-level failure risk by eliminating software-dependent fault recovery in real-time control loops. | Use Scenario: Self-service kiosk backplane consolidating payment terminals, receipt printers, and customer-facing cameras into a single USB root port. IC Role / Device Role / Timing Role: Deterministic USB 2.0 hub with fixed eFuse configuration - prevents field misconfiguration during kiosk deployment. Use Value: Ensures consistent enumeration order and power delivery across thousands of deployed units without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 hub controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UPD720114GA-YC-A | Single-chip USB 2.0 hub with integrated 5 V regulator; no embedded CPU or BC v1.2 support | Requires external charging IC and lacks firmware programmability - suited for basic hubs only | Select when lowest BOM cost is critical and charging functionality is handled externally |
| TUSB2036IPV | 3.3 V only, no integrated microcontroller, no BC v1.2 - relies on external GPIOs for charging detection | Lacks ghost charging and ACA-Dock support; limited to simple peripheral expansion | Choose for legacy designs already using TI's USB hub ecosystem and where firmware flexibility is unnecessary |
Compared with UPD720114GA-YC-A and TUSB2036IPV, CYUSB2302-68LTXI uniquely combines BC v1.2 compliance, embedded firmware control, and industrial-grade reliability in a pin-compatible 68-QFN package - enabling feature-rich yet compact USB 2.0 hub designs without external support ICs.
Availability
CYUSB2302-68LTXI is available at Aetrix Electronics and suitable for industrial docking stations, medical peripheral hubs, factory automation controllers, and retail kiosk backplanes requiring stable component supply across extended product lifecycles.
Supply support for CYUSB2302-68LTXI 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.
CYUSB2302 belongs to the EZ-USB™ HX3 family, designed specifically for embedded USB hub applications demanding integrated charging, firmware configurability, and industrial environmental resilience - not general-purpose USB connectivity.
FAQ
Does CYUSB2302-68LTXI support USB 3.0 or SuperSpeed functionality?
No. CYUSB2302-68LTXI is a USB 2.0-only hub controller with no SS PHY or SuperSpeed circuitry. It supports only Low-Speed (1.5 Mbps), Full-Speed (12 Mbps), and High-Speed (480 Mbps) signaling. The "2302" part number explicitly denotes USB 2.0 dual-port capability within the HX3 family.
Can the embedded Cortex-M0 be used to implement custom USB descriptors or HID reports?
Yes. The Cortex-M0 subsystem supports custom string descriptor loading via I2C EEPROM and executes firmware that can dynamically generate or modify descriptors during enumeration. However, HID report descriptor generation requires application-level firmware development - no built-in HID stack is provided.
What is the maximum allowable VDDIO_3P3 supply ripple for stable USB 2.0 operation?
The datasheet specifies ±5 % tolerance on VDDIO_3P3 (3.3 V ± 165 mV). Measured ripple must remain below 50 mVPP at 100 kHz–100 MHz to prevent bit errors on HS/FS lines. This requires proper decoupling: one 10 µF tantalum and three 100 nF X7R ceramics placed within 3 mm of the VDDIO_3P3 pins.
Is there hardware support for USB On-The-Go (OTG) role swapping on the upstream port?
No. CYUSB2302-68LTXI operates exclusively as a USB device (hub) and does not implement OTG protocol negotiation, ID pin detection, or dual-role port control. The upstream port is strictly host-facing and lacks the circuitry required for peripheral/host role reversal.
CYUSB2302-68LTXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HX3
- Package/Case:
- 68-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- USB 2.0 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-QFN (8x8)
CYUSB2302-68LTXI FAQ
1.How can I place an order for CYUSB2302-68LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYUSB2302-68LTXI 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 CYUSB2302-68LTXI reliable?
The price and inventory of CYUSB2302-68LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYUSB2302-68LTXI is usually 5 days.
3.What payment methods are accepted for CYUSB2302-68LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYUSB2302-68LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYUSB2302-68LTXI?
CYUSB2302-68LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYUSB2302-68LTXI 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 CYUSB2302-68LTXI?
For technical support, including CYUSB2302-68LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYUSB2302-68LTXI requirements.
6.How does Aetrix verify that CYUSB2302-68LTXI is sourced from the original manufacturer or authorized distributors?
All CYUSB2302-68LTXI 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 CYUSB2302-68LTXI meets industry standards.
7.What is the process for return or replacement of CYUSB2302-68LTXI?
All CYUSB2302-68LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CYUSB2302-68LTXI, 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 CYUSB2302-68LTXI part is unused and in its original packaging.
Return procedure for CYUSB2302-68LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYUSB2302-68LTXI 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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