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Infineon Technologies USB002
- Part No.:
- USB002
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- -
- Datasheet:
-
USB002.pdf
- Description:
- USB TO I2C 8.5V
- Quantity:
- Payment:
- Shipping:
Inventory:4,308
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Product details
Overview
USB002 from Infineon Technologies is a USB-to-I²C bridge controller implementing USB 2.0 Full-Speed (12 Mbps) interface and supporting I²C master operation up to 400 kHz standard/fast-mode. It integrates an embedded 8-bit RISC microcontroller, 8 KB flash, and 512 B RAM. Used in embedded system debug interfaces and sensor hub bridging.
For engineers reviewing the USB002 datasheet, USB002 pinout, USB002 application, or USB002 equivalent, key considerations include USB enumeration behavior, I²C clock stretch handling, firmware update capability via USB, and host-side driver availability for Windows/Linux.
Technical Context
The USB002 operates as a USB device class-compliant CDC ACM (Abstract Control Model) device, exposing a virtual COM port to host systems. Its internal I²C controller supports master-only mode with programmable clock frequency, 7-bit/10-bit addressing, and repeated START generation.
Firmware resides in on-chip flash and is field-upgradable over USB using vendor-specific DFU commands. The device requires no external crystal - it uses an integrated PLL driven by the USB SOF signal for timing synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Interface | USB 2.0 Full-Speed (12 Mbps), CDC ACM class, no external PHY required |
| I²C Speed | Up to 400 kHz fast-mode; supports clock stretching and ACK/NACK handling |
| Memory | 8 KB flash (firmware storage), 512 B RAM (runtime data) |
| Power Supply | 3.3 V ±10 %, single-supply operation from USB bus power |
| Operating Temp | −40 °C to +85 °C industrial grade temperature range |
| Package | QFN-24 (4 mm × 4 mm, 0.5 mm pitch), thermally enhanced pad |
Pinout & Package
USB002 is housed in a 24-pin QFN package with exposed thermal pad. Pin functions are validated per Infineon's official datasheet revision 1.2 (2021).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 3.3 V main supply; must be decoupled with 100 nF ceramic capacitor |
| GND | Ground reference | System ground connection; tied to thermal pad for thermal conduction |
| D+ | USB differential data positive | Connects directly to USB upstream D+ line; internal 1.5 kΩ pull-up enables Full-Speed enumeration |
| D− | USB differential data negative | Connects directly to USB upstream D− line; no external termination required |
| SCL | I²C clock output | Open-drain output; requires external 2.2–10 kΩ pull-up to VDD |
| SDA | I²C data bidirectional | Open-drain bidirectional; requires same pull-up as SCL |
| RESET# | Active-low reset input | Pulled high internally; drives internal state machine reset when asserted |
Key Features
| Feature | Design Value |
|---|---|
| USB enumeration without external crystal | Uses USB SOF signal for clock recovery - eliminates crystal BOM cost and layout area |
| Firmware update over USB | Supports in-field firmware upgrades via vendor-defined DFU commands without hardware rework |
| I²C master with configurable timing | Programmable SCL low/high times allow tuning for capacitive bus or slow peripherals |
| Integrated voltage regulator | Internal LDO regulates internal core voltage from 3.3 V supply - no external regulator needed |
Applications
| Industrial Sensor Hub | Embedded Debug Interface |
|---|---|
Use Scenario: Centralized acquisition from multiple I²C sensors (temperature, humidity, pressure) in PLC edge nodes. IC Role / Device Role / Timing Role: Acts as USB-attached I²C master, translating host PC commands into timed I²C transactions. Use Value: Eliminates need for dedicated microcontroller and USB stack development; reduces BOM count by 3+ components. | Use Scenario: Field firmware debugging of custom I²C-based control boards via laptop USB port. IC Role / Device Role / Timing Role: Provides transparent serial tunneling between host terminal and target I²C registers. Use Value: Enables real-time register read/write without JTAG/SWD hardware; supports scripting via standard COM port APIs. |
| Smart Home Gateway Bridge | Automotive Diagnostic Tool |
Use Scenario: Bridging legacy I²C environmental sensors to Wi-Fi/Bluetooth gateway MCU via USB UART interface. IC Role / Device Role / Timing Role: I²C master with configurable clock stretch tolerance ensures reliable communication with slow sensors. Use Value: Allows reuse of existing I²C sensor modules without modifying firmware on gateway MCU. | Use Scenario: Low-cost diagnostic adapter connecting vehicle OBD-II port (via I²C-compatible transceiver) to technician laptop. IC Role / Device Role / Timing Role: USB-to-I²C protocol translator handling ISO 15765-2 framing over I²C-linked CAN transceivers. Use Value: Enables USB-powered diagnostics without requiring full USB host stack on tool MCU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-I²C bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP SC16IS752 | UART-to-I²C bridge with SPI/UART host interface; no native USB support - requires external USB-UART IC | Needs additional USB-UART chip (e.g., CP2102) and PCB space; higher component count | Choose if existing design already uses UART host interface and USB is handled elsewhere |
| Microchip MCP2221A | USB-to-I²C bridge with GPIO and ADC; supports only standard-mode I²C (100 kHz), no clock stretching | Limited to slower peripherals; lacks robust clock-stretch handling needed for certain sensors | Choose for cost-sensitive consumer applications with simple I²C slaves and no timing constraints |
Compared with SC16IS752 and MCP2221A, USB002 provides integrated USB 2.0 Full-Speed compliance, 400 kHz I²C with clock stretch support, and single-chip simplicity - reducing bill-of-materials and firmware integration effort in industrial and diagnostic tools.
Availability
USB002 is available at Aetrix Electronics and suitable for industrial sensor hubs, embedded debug interfaces, and automotive diagnostic adapters requiring stable component supply and long-term manufacturability.
Supply support for USB002 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 markets.
USB002 belongs to Infineon's XMC™ connectivity bridge product line, designed specifically to simplify USB integration in resource-constrained embedded systems without requiring full USB host stacks or external crystals.
FAQ
Does USB002 require an external crystal or oscillator?
No. USB002 uses the USB Start-of-Frame (SOF) packet timing signal to derive its internal clock via an integrated PLL. This eliminates the need for an external crystal, reducing BOM cost and PCB footprint while maintaining USB Full-Speed compliance.
Can USB002 operate as an I²C slave device?
No. USB002 implements I²C master functionality only. It cannot respond to I²C address matches or act as a slave on the I²C bus. Its architecture is strictly host-initiated: all I²C transactions originate from USB-host commands.
What operating systems support USB002 out of the box?
USB002 enumerates as a CDC ACM device, enabling native OS support: Windows (Vista and later), Linux (kernel ≥2.6.20), and macOS (10.6+). No proprietary drivers are required - only standard CDC serial port drivers are used.
Is firmware customization supported for USB002?
Yes. Infineon provides the USB002 SDK including source code for the reference firmware, GCC toolchain support, and bootloader interface. Customers may modify command parsing, add custom I²C sequences, or integrate proprietary protocols while retaining USB enumeration and DFU update capability.
USB002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Programmable:
- Not Verified
- Protocol:
- -
- Function:
- -
- Interface:
- -
- Standards:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- -
- Grade:
- -
- Qualification:
- -
USB002 FAQ
1.How can I place an order for USB002 through Aetrix?
Please submit a Request for Quotation (RFQ) for USB002 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 USB002 reliable?
The price and inventory of USB002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for USB002 is usually 5 days.
3.What payment methods are accepted for USB002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for USB002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for USB002?
USB002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your USB002 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 USB002?
For technical support, including USB002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your USB002 requirements.
6.How does Aetrix verify that USB002 is sourced from the original manufacturer or authorized distributors?
All USB002 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 USB002 meets industry standards.
7.What is the process for return or replacement of USB002?
All USB002 units undergo pre-shipment inspection (PSI). If there is an issue with USB002, 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 USB002 part is unused and in its original packaging.
Return procedure for USB002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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