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Infineon Technologies CY7C65223-24LTXIT
- Part No.:
- CY7C65223-24LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY7C65223-24LTXIT.pdf
- Description:
- USB Full-Speed Peripherals
- Quantity:
- Payment:
- Shipping:
Inventory:1,393
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Product details
Overview
CY7C65223-24LTXIT from Infineon Technologies is a single-channel USB 2.0 Full-Speed (12 Mbps) to UART bridge controller with integrated 48 MHz oscillator, 4 GPIOs, and support for RS232/RS422/RS485 physical layer interfaces. It delivers up to 3 Mbps UART data rate, 190-byte TX/RX buffers, and battery charger detection (BCD v1.2, peripheral detect only), deployed in medical point-of-care devices requiring stable COM port enumeration.
For engineers reviewing the CY7C65223-24LTXIT datasheet, CY7C65223-24LTXIT pinout, CY7C65223-24LTXIT application, or CY7C65223-24LTXIT equivalent, key selection criteria include UART interface configurability (2/4/6/8-pin modes), CDC/PHDC/USB vendor-class support, BCD compliance, 1.71–5.5 V operating range, and QFN-24 package thermal performance in industrial temperature environments.
Technical Context
The device implements a USB Serial Interface Engine (SIE) compliant with USB 2.0 Full-Speed and USB Battery Charging Specification Rev. 1.2 (peripheral-side BCD only). Its serial communication block includes configurable UART with hardware/software flow control, parity/framing/error detection, and break signal generation.
Internal clocking uses a factory-trimmed 48 MHz oscillator for USB timing and a 32 kHz oscillator for low-power suspend/resume operations. Power architecture supports bus-powered, self-powered, and variable I/O voltage configurations with integrated VBUS regulator and 2.2 kV HBM ESD protection on all I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); enables CDC-compliant virtual COM port operation on Windows/macOS/Linux without custom driver development. |
| UART Data Rate | Up to 3 Mbps; supports high-throughput legacy serial peripherals such as barcode scanners and industrial PLCs. |
| FIFO Depth | 190 bytes TX + 190 bytes RX; reduces host CPU interrupt load and prevents data loss during burst transfers. |
| GPIO Count | 4 dedicated pins; configurable as general-purpose I/O or UART control signals (RTS/CTS/DTR/DSR) depending on interface mode. |
| Operating Voltage | 1.71 V to 5.5 V; allows direct interfacing with 1.8 V, 3.3 V, and 5 V logic systems without level-shifting. |
| Temperature Range | –40°C to 85°C (industrial grade); validated for continuous operation in enclosed test equipment and POS terminals. |
| Package | 24-pin QFN (4.0 mm × 4.0 mm, 0.5 mm pitch); provides compact footprint and thermal efficiency for space-constrained embedded designs. |
Pinout & Package
24-pin QFN package (4.0 mm × 4.0 mm, 0.5 mm pitch, 0.55 mm height) with exposed thermal pad; RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDD | Digital supply | 1.71–5.5 V core power for USB SIE and UART logic; decoupling required per datasheet layout guidelines. |
| VCCD | I/O supply | Independent 1.71–5.5 V rail for GPIO and UART I/O; enables mixed-voltage system interfacing. |
| USBDP / USBDM | USB differential pair | Integrated 1.5 kΩ pull-up on USBDP; internal 27 Ω series resistors and 15 kΩ termination to VDD for Full-Speed compliance. |
| RxD / TxD | UART receive/transmit | Configurable 2-pin basic UART; supports TTL-level signaling at up to 3 Mbps with programmable data/stop/parity format. |
| RTS# / CTS# | Hardware flow control | Active-low handshake signals enabled automatically in 4-pin UART mode; eliminates buffer overflow in high-speed streaming. |
| nXRES | Reset input | Active-low asynchronous reset; held low for ≥10 µs to initialize USB state machine and UART registers. |
| VBUS | USB bus voltage sense | Monitors USB host VBUS presence; enables automatic transition between bus-powered and self-powered modes. |
Key Features
| Feature | Design Value |
|---|---|
| Unique serial number per device | Fixes COM port assignment across reboots and USB replugs on Windows, eliminating driver re-enumeration issues in field-deployed medical devices. |
| 512-byte configuration flash | Stores VID/PID, descriptors, UART settings, and BCD enable/disable state; retains configuration through power cycles without external EEPROM. |
| Multi-protocol USB class support | CDC, PHDC, and vendor-class modes selectable via configuration utility; enables OS-native COM port use or custom firmware integration. |
| RS232/RS422/RS485 interface support | UART output signals routed to external transceivers; validated reference designs available for all three physical layers. |
| Integrated 48 MHz oscillator | Eliminates external crystal and associated load capacitors; reduces BOM count and PCB area while meeting USB timing jitter requirements. |
Applications
| Medical Point-of-Care Devices | Industrial Test Equipment |
|---|---|
Use Scenario: Portable blood glucose meters and ECG monitors connecting to PC via USB for data logging and firmware updates. IC Role / Device Role / Timing Role: USB-UART bridge providing CDC-compliant virtual COM port with fixed enumeration and BCD-aware charging detection. Use Value: Ensures deterministic COM port assignment and safe battery charging from USB host without compromising medical device certification. | Use Scenario: Automated test fixtures using legacy RS232 instruments (e.g., multimeters, power supplies) controlled by USB-connected host PCs. IC Role / Device Role / Timing Role: Protocol translator enabling USB host to issue SCPI commands over UART to instrument front-ends. Use Value: Eliminates need for discrete USB-to-serial dongles; supports 3 Mbps data rates for fast waveform capture and calibration data transfer. |
| POS Terminals | Gaming Peripheral Adapters |
Use Scenario: Compact retail terminals integrating magnetic stripe readers and receipt printers via RS232/RS485, powered from USB host. IC Role / Device Role / Timing Role: Single-chip USB bridge with 4 GPIOs used for printer ready/busy signaling and MSR card-detect interrupts. Use Value: Reduces component count versus multi-chip solutions; supports bus-powered operation with <5 mA suspend current. | Use Scenario: Third-party adapter converting legacy PS/2 or RS232 gaming controllers (e.g., flight sticks, racing wheels) to USB plug-and-play. IC Role / Device Role / Timing Role: USB CDC device presenting as standard COM port to game engine middleware for low-latency HID command injection. Use Value: Enables Windows/macOS/Linux compatibility without custom drivers; leverages built-in OS CDC stack for immediate plug-and-play. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-UART bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C65213A-32LTXI | 32-pin QFN, 8 GPIOs, no RS485 support, same UART/USB features | Better suited for designs requiring additional GPIOs for status LEDs or button inputs | Select when >4 GPIOs are needed and RS485 is not required |
| FT232RL | Legacy FTDI part; requires external crystal, no BCD, 256-byte FIFO, 3.3 V only | Limited to 3.3 V systems; lacks industrial temp rating and integrated oscillator | Choose only for cost-sensitive, non-industrial designs with existing FTDI driver infrastructure |
Compared with CY7C65213A-32LTXI and FT232RL, CY7C65223-24LTXIT offers optimal balance of compact QFN-24 packaging, integrated clock, BCD support, and RS485 readiness-making it preferred for new industrial and medical designs where board space, power flexibility, and regulatory compliance are critical.
Availability
CY7C65223-24LTXIT is available at Aetrix Electronics and suitable for medical diagnostics, industrial test equipment, point-of-sale terminals, and gaming peripheral adapters requiring stable component supply across extended product lifecycles.
Supply support for CY7C65223-24LTXIT 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 IoT markets.
CY7C65223 belongs to the USB Serial Bridge Controller family designed specifically for seamless integration of legacy UART peripherals into modern USB-enabled systems without firmware development.
FAQ
Does CY7C65223-24LTXIT require an external crystal?
No. The device integrates a factory-trimmed 48 MHz oscillator that meets USB Full-Speed timing requirements, eliminating the need for an external crystal or associated load capacitors. This reduces BOM cost and PCB area while improving startup reliability across temperature and voltage ranges.
Can CY7C65223-24LTXIT operate in self-powered mode with 5 V I/O?
Yes. It supports self-powered operation with VCCD supplied from a local 5 V rail, while VDDD can be independently set to 1.8 V, 3.3 V, or 5 V. This enables direct connection to 5 V RS232 transceivers without level shifters, provided VDDD remains within 1.71–5.5 V and thermal limits are observed.
How is the unique serial number programmed and retained?
The unique serial number is factory-programmed into one-time programmable (OTP) memory and cannot be altered. It is read by the USB host during enumeration to assign a persistent COM port number in Windows, ensuring consistent device identification across reboots and USB replugs without driver reinstallation.
What UART interface configurations does CY7C65223-24LTXIT support?
It supports 2-pin (RxD/TxD), 4-pin (RxD/TxD/RTS#/CTS#), 6-pin (adds DTR#/DSR#), and 8-pin (adds DCD#/RI#) UART modes. Hardware flow control is automatically enabled in 4/6/8-pin modes, and software flow control (XON/XOFF) is supported in all configurations via register control.
CY7C65223-24LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Bridge
- Interface:
- GPIO, UART
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.71V ~ 1.89V, 2V ~ 3.45V, 3.15V ~ 5.25V, 4.35V ~ 5.5V
- Current - Supply:
- 20mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 24-QFN (4x4)
- Grade:
- -
- Qualification:
- -
CY7C65223-24LTXIT FAQ
1.How can I place an order for CY7C65223-24LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65223-24LTXIT 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 CY7C65223-24LTXIT reliable?
The price and inventory of CY7C65223-24LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65223-24LTXIT is usually 5 days.
3.What payment methods are accepted for CY7C65223-24LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65223-24LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65223-24LTXIT?
CY7C65223-24LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65223-24LTXIT 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 CY7C65223-24LTXIT?
For technical support, including CY7C65223-24LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65223-24LTXIT requirements.
6.How does Aetrix verify that CY7C65223-24LTXIT is sourced from the original manufacturer or authorized distributors?
All CY7C65223-24LTXIT 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 CY7C65223-24LTXIT meets industry standards.
7.What is the process for return or replacement of CY7C65223-24LTXIT?
All CY7C65223-24LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65223-24LTXIT, 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 CY7C65223-24LTXIT part is unused and in its original packaging.
Return procedure for CY7C65223-24LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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