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Infineon Technologies CY7C65223D-32LTXIT
- Part No.:
- CY7C65223D-32LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY7C65223D-32LTXIT.pdf
- Description:
- USB Full-Speed Peripherals
- Quantity:
- Payment:
- Shipping:
Inventory:1,448
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Product details
Overview
CY7C65223D-32LTXIT from Infineon Technologies (formerly Cypress Semiconductor) is a USB 2.0 Full-Speed (12 Mbps) dual-channel UART bridge controller with integrated 48-MHz oscillator, supporting RS232/RS422/RS485 interfaces, hardware/software flow control, and battery charger detection (BCD v1.2). It delivers up to 3 Mbps per UART channel, 190-byte TX/RX buffers per channel, and operates from 1.71–5.5 V across commercial (0°C to 70°C) and industrial (–40°C to 85°C) temperature ranges - deployed in medical devices, POS terminals, and industrial test equipment.
For engineers reviewing the CY7C65223D-32LTXIT datasheet, CY7C65223D-32LTXIT pinout, CY7C65223D-32LTXIT application, or CY7C65223D-32LTXIT equivalent, key selection criteria include dual UART configurability (2/4/6/8-pin modes), BCD peripheral detection support, CDC/PHDC/vendor-class USB device class compatibility, GPIO count (4 pins), and QFN-32 package thermal and layout constraints.
Technical Context
The CY7C65223D implements a dual-channel Serial Communication Block (SCB) architecture, each with independent 8-byte RX/TX FIFOs and configurable framing (7/8 data bits, 1/2 stop bits, parity options). It integrates a USB 2.0-compliant SIE with on-die 1.5kΩ pull-up and 22-Ω series termination resistors, eliminating external components.
Its internal 48-MHz oscillator eliminates external crystal requirements, while the 32 KB flash enables field-updatable configuration (VID/PID, descriptors, UART settings) via Cypress-provided Windows utility. USB suspend mode reduces current to <100 µA, supporting bus- and self-powered operation with VBUS sensing and VDDD regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); enables CDC-compliant virtual COM port enumeration without custom drivers on Windows/macOS/Linux. |
| UART Channels | Dual independent channels; supports simultaneous asynchronous serial communication with separate buffer and control logic. |
| Data Rate | Up to 3 Mbps per channel; sufficient for high-speed industrial telemetry and medical sensor streaming. |
| Buffer Size | 190 bytes TX + 190 bytes RX per channel; minimizes host polling overhead and prevents overrun in burst-mode transfers. |
| Operating Voltage | 1.71 V to 5.5 V; allows direct interfacing with 1.8 V, 3.3 V, and 5 V logic domains without level shifters. |
| Temperature Range | –40°C to +85°C (industrial grade); validated for deployment in factory automation and outdoor kiosks. |
| ESD Rating | 2.2 kV HBM; meets IEC 61000-4-2 Level 2 for robustness in handheld and benchtop instrumentation. |
Pinout & Package
Package: 32-pin QFN (5 mm × 5 mm × 1 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDD | Digital supply voltage | Core logic and USB PHY power rail (1.71–5.5 V); decoupling required near pin. |
| VBUS | USB bus voltage sense | Monitors USB host power presence; enables automatic bus/self-power mode selection. |
| USBDP / USBDM | USB differential data pair | Integrated 22-Ω series resistors and 1.5-kΩ pull-up on USBDP; no external termination needed. |
| UART0_RxD / UART0_TxD | Channel 0 receive/transmit | Configurable as RS232/RS422/RS485; supports software/hardware flow control and break detection. |
| UART1_RxD / UART1_TxD | Channel 1 receive/transmit | Independent from Channel 0; supports same interface modes and flow control options. |
| GPIO[0:3] | General-purpose I/O | Configurable as inputs/outputs; usable for status signaling, reset control, or peripheral enable. |
| nXRES | Active-low reset input | Asynchronous hardware reset; asserts internal logic and USB enumeration state. |
| GND / VSS | Ground reference | Multiple GND pins including dedicated analog ground for noise isolation in mixed-signal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual UART with flexible pin mapping | Supports 2-/4-/6-/8-pin configurations per channel, enabling RS232 (2-pin), RS485 (4-pin w/ DE/RE), or full modem (8-pin) wiring without redesign. |
| USB Battery Charging Detection (BCD) | Complies with USB BC 1.2 Peripheral Detect only; identifies DCP/CDP/SDP hosts to optimize charging current in portable medical devices. |
| Persistent COM port assignment | Unique serial number per device ensures fixed COM port enumeration on Windows, eliminating driver reassignment after reconnect. |
| Field-configurable firmware | 32 KB flash stores VID/PID, descriptors, UART parameters, and GPIO behavior; updated via Windows utility without JTAG or firmware coding. |
| Integrated clock source | On-chip 48-MHz oscillator eliminates external crystal and associated load capacitors, reducing BOM count and PCB area. |
Applications
| Medical Diagnostics Interface | Industrial PLC Gateway |
|---|---|
Use Scenario: Connecting legacy ECG or pulse oximeter modules with TTL-level UART output to modern USB-based patient monitoring systems. IC Role / Device Role / Timing Role: USB-to-dual UART bridge translating asynchronous serial data into CDC-compliant USB packets with deterministic latency. Use Value: Enables FDA-cleared medical devices to retain existing analog/digital front-ends while achieving USB 2.0 interoperability and Windows Plug-and-Play compliance. | Use Scenario: Bridging Modbus RTU over RS485 from multiple PLCs to a central SCADA host PC via single USB port. IC Role / Device Role / Timing Role: Dual-channel RS485-capable UART bridge with hardware flow control and 190-byte buffers per channel. Use Value: Eliminates need for two discrete USB-to-RS485 adapters; reduces cabling complexity and improves timing synchronization between parallel Modbus slaves. |
| POS Terminal Expansion | Test & Measurement Fixture |
Use Scenario: Adding dual serial ports to compact Android-based POS terminals for simultaneous connection to receipt printer (RS232) and barcode scanner (TTL UART). IC Role / Device Role / Timing Role: Dual configurable UART bridge with 1.71–5.5 V I/O tolerance and software flow control negotiation. Use Value: Supports mixed-voltage peripherals without level shifters; persistent COM port assignment prevents transaction failure during hot-plug events. | Use Scenario: Automating calibration of multimeters and oscilloscopes using SCPI commands sent over USB from host PC to instruments with native RS232 interfaces. IC Role / Device Role / Timing Role: High-reliability USB-to-dual UART bridge with 3 Mbps data rate and framing error detection. Use Value: Ensures accurate command delivery and response capture at >115.2 kbps, with buffer depth preventing packet loss during instrument boot or reset sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-dual UART bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FT4232H (FTDI) | Quad-channel, higher USB bandwidth (480 Mbps Hi-Speed), no integrated BCD or RS485 driver support. | Better suited for multi-port, high-throughput applications like USB protocol analyzers; requires external RS485 transceivers and BCD circuitry. | Select when needing >2 UARTs or Hi-Speed USB; avoid if BCD or RS485 integration is required. |
| CY7C65215A (Infineon) | Dual-channel, 17 GPIO, supports USB-SPI/I2C in addition to UART; larger QFN-32 package with identical footprint but different pinout. | Used where SPI/I2C bridging coexists with UART; GPIO flexibility supports complex peripheral control not possible with CY7C65223D's 4-GPIO limit. | Select when expanding beyond UART-only bridging; verify pin compatibility before PCB reuse. |
Compared with FT4232H and CY7C65215A, the CY7C65223D-32LTXIT offers optimal balance of dual UART functionality, integrated RS485 support, BCD compliance, and minimal external component count - ideal for cost-sensitive, space-constrained industrial and medical USB serial gateways.
Availability
CY7C65223D-32LTXIT is available at Aetrix Electronics and suitable for medical diagnostics interfaces, industrial PLC gateways, and test & measurement fixtures requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for CY7C65223D-32LTXIT 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and connectivity solutions with strong heritage in USB and interface ICs via its acquisition of Cypress Semiconductor.
The CY7C65223D belongs to Infineon's USB-Serial Bridge Controller family, designed specifically to simplify USB connectivity for legacy serial peripherals - eliminating firmware development while delivering certified, production-ready CDC/PHDC/Vendor-class USB device functionality.
FAQ
Does CY7C65223D-32LTXIT require an external crystal?
No. The device integrates a precision 48-MHz oscillator, eliminating the need for an external crystal or load capacitors. This reduces bill-of-materials cost and PCB area while improving startup reliability and EMI performance compared to crystal-based USB controllers.
Can both UART channels operate at different baud rates simultaneously?
Yes. Each UART channel has independent baud rate generators and configuration registers. Channel 0 and Channel 1 can be set to distinct data rates (e.g., 921.6 kbps and 115.2 kbps) and framing formats (data bits, stop bits, parity) without interference.
Is RS485 half-duplex mode supported natively?
Yes. The CY7C65223D supports RS485 half-duplex operation through its configurable UART pins (e.g., UART0_RxD/TxD + GPIO-controlled DE/RE signals). The included configuration utility enables automatic DE assertion during transmit, ensuring compliant driver enable timing.
What operating systems support the default CDC driver without additional installation?
Windows 7 through 10 (32/64-bit), macOS 10.6+, and Linux kernel 2.6.35+ include built-in CDC ACM drivers. No vendor-specific driver installation is required - the device enumerates as a standard COM port upon plug-in, provided VID/PID match Microsoft's WHQL-certified defaults (0x04B4/0x0008).
CY7C65223D-32LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- I2C, SPI, UART
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.71V ~ 1.89V, 2V ~ 3.45V, 3.15V ~ 5.25V, 4.35V ~ 5.5V
- Current - Supply:
- 18mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 32-QFN (5x5)
- Grade:
- -
- Qualification:
- -
CY7C65223D-32LTXIT FAQ
1.How can I place an order for CY7C65223D-32LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65223D-32LTXIT 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 CY7C65223D-32LTXIT reliable?
The price and inventory of CY7C65223D-32LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65223D-32LTXIT is usually 5 days.
3.What payment methods are accepted for CY7C65223D-32LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65223D-32LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65223D-32LTXIT?
CY7C65223D-32LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65223D-32LTXIT 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 CY7C65223D-32LTXIT?
For technical support, including CY7C65223D-32LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65223D-32LTXIT requirements.
6.How does Aetrix verify that CY7C65223D-32LTXIT is sourced from the original manufacturer or authorized distributors?
All CY7C65223D-32LTXIT 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 CY7C65223D-32LTXIT meets industry standards.
7.What is the process for return or replacement of CY7C65223D-32LTXIT?
All CY7C65223D-32LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65223D-32LTXIT, 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 CY7C65223D-32LTXIT part is unused and in its original packaging.
Return procedure for CY7C65223D-32LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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