My Inquiry
My Account
Infineon Technologies CY7C65223D-32LTXI
- Part No.:
- CY7C65223D-32LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY7C65223D-32LTXI.pdf
- Description:
- USB Full-Speed Peripherals
- Quantity:
- Payment:
- Shipping:
Inventory:4,619
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY7C65223D-32LTXI from Infineon Technologies (formerly Cypress) is a USB 2.0 Full-Speed (12 Mbps) dual-channel UART bridge controller with integrated 48-MHz oscillator, 4 GPIOs, and support for RS232/RS422/RS485 physical layers. It delivers 190-byte TX/RX buffers per channel, software/hardware flow control, and battery charger detection (BCD v1.2 Peripheral Detect) for medical and industrial USB-to-serial interface applications.
For engineers reviewing the CY7C65223D-32LTXI datasheet, CY7C65223D-32LTXI pinout, CY7C65223D-32LTXI application, or CY7C65223D-32LTXI equivalent, key selection criteria include dual UART channel configurability (2-/4-/6-/8-pin modes), 1.71–5.5 V operating voltage, –40 °C to +85 °C industrial temperature range, 32-pin QFN package, and CDC/PHDC/USB vendor class driver compatibility across Windows, Linux, and macOS.
Technical Context
The CY7C65223D implements two independent Serial Communication Blocks (SCBs), each configurable as UART with full framing support (7/8 data bits, 1/2 stop bits, parity options), break signal generation, and error detection (parity, overrun, framing). Each channel includes dedicated 190-byte FIFOs and supports both software (XON/XOFF) and hardware (RTS#/CTS#, DTR#/DSR#, DCD#/RI#) flow control.
It integrates a USB 2.0-compliant transceiver with on-die 1.5 kΩ pull-up and 22 Ω series termination resistors, a 48-MHz internal oscillator eliminating external crystal requirements, and a 32-kB flash memory for device configuration storage. Power management includes bus-powered and self-powered modes, USB suspend, and 2.2 kV HBM ESD protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); enables direct connection to standard USB 2.0 hosts without external PHY. |
| UART Channels | 2 independent channels; allows simultaneous bridging of two legacy serial peripherals to USB. |
| Data Rate | Up to 3 Mbps per channel; supports high-speed industrial modems and test equipment interfaces. |
| FIFO Size | 190 bytes TX + 190 bytes RX per channel; reduces host CPU interrupt load and prevents data loss at burst rates. |
| Operating Voltage | 1.71 V to 5.5 V; permits direct interfacing with 1.8 V, 3.3 V, and 5 V logic systems without level shifters. |
| Temperature Range | –40 °C to +85 °C (industrial grade); qualified for deployment in factory automation and outdoor POS terminals. |
| Package | 32-pin QFN (5 × 5 × 1 mm, 0.5 mm pitch); surface-mount compatible with automated PCB assembly and thermal pad for dissipation. |
Pinout & Package
32-pin QFN (5 × 5 × 1 mm, 0.5 mm pitch) with exposed thermal pad (Pin 32 = GND). Package meets RoHS compliance and supports reflow soldering per IPC/JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDD | Digital supply | 1.71–5.5 V core I/O supply; powers UART logic, GPIOs, and USB transceiver digital section. |
| VCCD | USB transceiver supply | 3.0–5.5 V analog supply for USB DP/DM drivers; decoupled separately for noise immunity. |
| USBDP / USBDM | USB differential pair | Full-Speed USB interface pins with integrated 1.5 kΩ pull-up (USBDP) and 22 Ω series termination. |
| nXRES | Active-low reset | Asynchronous reset input; holds device in reset until released, ensuring deterministic boot state. |
| GPIO[0:3] | Configurable I/O | Four bidirectional pins usable as UART control signals (RTS#/CTS#/DTR#/DSR#) or general-purpose functions. |
| UART0_RX / UART0_TX | Channel 0 data path | Primary UART interface; supports 2-/4-/6-/8-pin configurations via firmware-defined pin mapping. |
| UART1_RX / UART1_TX | Channel 1 data path | Secondary UART interface; electrically isolated from Channel 0 for concurrent multi-peripheral bridging. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 48-MHz oscillator | Eliminates external crystal and associated load capacitors, reducing BOM count and board space by ≥3 components. |
| Unique serial number per device | Fixes COM port assignment on Windows host across plug/unplug cycles, preventing driver re-enumeration issues. |
| RS485 support with automatic direction control | Enables half-duplex RS485 bus operation without external transceiver control logic or timing-critical GPIO toggling. |
| USB Battery Charging Detection (BCD v1.2) | Identifies downstream charging ports (SDP/CDP/DCP) to optimize power draw in portable medical and POS devices. |
| Configuration utility (Windows) | Allows field-programmable VID/PID, descriptors, UART settings, and GPIO roles without firmware development or re-spin. |
Applications
| Medical Diagnostic Equipment | Industrial PLC Interface |
|---|---|
Use Scenario: Connecting legacy ECG or patient monitor serial outputs to modern USB-based clinical data servers. IC Role / Device Role / Timing Role: USB-to-dual UART bridge enabling simultaneous telemetry stream ingestion and control command dispatch over single USB cable. Use Value: Eliminates need for separate USB hubs or dual-bridge ICs; 190-byte FIFOs prevent packet loss during high-resolution waveform bursts. | Use Scenario: Interfacing Modbus RTU sensors and HMIs to programmable logic controllers via USB-enabled programming laptops. IC Role / Device Role / Timing Role: Dual-channel RS485-capable UART bridge providing isolated serial links for sensor polling and HMI updates. Use Value: Built-in RS485 direction control and 3 Mbps data rate support real-time Modbus response times under 10 ms. |
| Retail Point-of-Sale Terminal | Test & Measurement Instrumentation |
Use Scenario: Integrating magnetic stripe readers and receipt printers-both requiring distinct serial protocols-into compact USB-based POS systems. IC Role / Device Role / Timing Role: Dual UART bridge with hardware flow control (RTS#/CTS#) managing asynchronous data streams from two peripherals concurrently. Use Value: Prevents buffer overflow during rapid card swipe bursts while maintaining printer handshaking integrity. | Use Scenario: Adding USB connectivity to benchtop oscilloscopes and signal generators with existing RS232 debug ports. IC Role / Device Role / Timing Role: High-speed (3 Mbps) UART bridge supporting SCPI command streaming and waveform data upload without protocol translation. Use Value: 1.71–5.5 V supply range allows direct integration with instrument's internal 3.3 V rail, avoiding external regulators. |
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 USB-UART; no integrated oscillator; requires external 6 MHz crystal; larger 48-QFN package. | Higher channel count but lacks built-in RS485 direction control and BCD detection. | Select when needing >2 UARTs or SPI/I2C bridging; avoid if minimizing BOM or supporting USB charging detection. |
| CY7C65215A (Infineon) | 2-channel USB-UART with 17 GPIOs; supports RS485, SPI, and I2C; same 32-QFN package. | Greater GPIO flexibility and multi-protocol capability; higher cost and complexity for UART-only use cases. | Select when expanding beyond UART to SPI/I2C peripherals; over-specified if only dual UART bridging is required. |
Compared with FT4232H and CY7C65215A, the CY7C65223D-32LTXI offers optimal balance of dual UART functionality, RS485 readiness, BCD support, and minimal external components-making it ideal for cost-sensitive, space-constrained industrial and medical USB serial adapters.
Availability
CY7C65223D-32LTXI is available at Aetrix Electronics and suitable for medical diagnostic equipment, industrial PLC interfaces, and retail point-of-sale terminals requiring stable component supply, long-term lifecycle assurance, and industrial temperature qualification.
Supply support for CY7C65223D-32LTXI 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, industrial, and USB connectivity solutions.
The CY7C65223D belongs to Infineon's USB-Serial Bridge Controller family, designed specifically to replace legacy UART peripherals with USB-native connectivity-enabling rapid integration into healthcare, industrial, and consumer systems without custom firmware.
FAQ
Does CY7C65223D-32LTXI require an external crystal?
No. The device integrates a precision 48-MHz internal oscillator, eliminating the need for an external crystal or clock source. This reduces bill-of-materials cost, PCB area, and design validation effort while maintaining USB Full-Speed timing compliance.
Can CY7C65223D-32LTXI operate in self-powered mode with 3.3 V I/O?
Yes. The device supports both bus-powered and self-powered configurations. In self-powered mode, VDDD can be supplied from a local 3.3 V rail, and VCCD may be tied to the same 3.3 V source-enabling direct interfacing with 3.3 V logic without level shifters.
How is RS485 half-duplex operation implemented?
RS485 direction control is handled automatically by internal logic that monitors UART transmit activity. When data is written to the TX FIFO, the device asserts the DE (driver enable) signal; it de-asserts DE after the last bit is shifted out-eliminating timing-critical GPIO toggling in firmware.
Is unique serial number support enabled by default?
Yes. Each CY7C65223D-32LTXI unit ships with a factory-programmed 64-bit unique serial number stored in one-time-programmable (OTP) memory. This feature is active by default in CDC mode and ensures consistent COM port enumeration on Windows hosts across repeated connections.
CY7C65223D-32LTXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- -
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- I2C, SPI, UART
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
CY7C65223D-32LTXI FAQ
1.How can I place an order for CY7C65223D-32LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65223D-32LTXI 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-32LTXI reliable?
The price and inventory of CY7C65223D-32LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65223D-32LTXI is usually 5 days.
3.What payment methods are accepted for CY7C65223D-32LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65223D-32LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65223D-32LTXI?
CY7C65223D-32LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65223D-32LTXI 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-32LTXI?
For technical support, including CY7C65223D-32LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65223D-32LTXI requirements.
6.How does Aetrix verify that CY7C65223D-32LTXI is sourced from the original manufacturer or authorized distributors?
All CY7C65223D-32LTXI 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-32LTXI meets industry standards.
7.What is the process for return or replacement of CY7C65223D-32LTXI?
All CY7C65223D-32LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65223D-32LTXI, 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-32LTXI part is unused and in its original packaging.
Return procedure for CY7C65223D-32LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C65223D-32LTXI 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
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
