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Infineon Technologies CY7C65213-32LTXIT
- Part No.:
- CY7C65213-32LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY7C65213-32LTXIT.pdf
- Description:
- IC USB TO UART BRIDGE 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,953
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Product details
Overview
CY7C65213-32LTXIT from Cypress Semiconductor is a USB 2.0 Full-Speed (12 Mbps) USB-to-UART bridge controller in a 32-pin QFN package, supporting configurable single-channel UART up to 3 Mbps, 256-byte TX/RX buffers, and integrated 48-MHz oscillator. It enables legacy UART peripherals to gain USB connectivity in battery-operated medical devices, POS terminals, and industrial test equipment.
For engineers reviewing the CY7C65213-32LTXIT datasheet, CY7C65213-32LTXIT pinout, CY7C65213-32LTXIT application, or CY7C65213-32LTXIT equivalent, key selection criteria include RS232/RS422 interface support (not RS485), BCD-compliant peripheral detection, bus/self-powered operation across 1.71–5.50 V, and Windows/Linux/Android driver compatibility.
Technical Context
The device integrates a USB 2.0 Full-Speed Serial Interface Engine (SIE), UART transceiver with hardware flow control (RTS#/CTS#, DTR#/DSR#), and on-chip 48-MHz oscillator eliminating external crystal requirements. It implements CDC, PHDC, and vendor-class USB device enumeration with built-in termination resistors and 1.5-kΩ pull-up on USBDP.
UART configuration supports 7/8 data bits, 1/2 stop bits, no/even/odd/mark/space parity, break signal, and error detection (framing, overrun, parity). GPIOs are software-configurable for LED drive, sleep indication, or charger type signaling (BCD0/BCD1), with 512-byte flash storing VID/PID, descriptors, and unique serial number.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); compliant with USB-IF TID 40860041 and USB Battery Charging Spec Rev. 1.2 (peripheral detect only). |
| UART Data Rate | Up to 3 Mbps; supports standard and non-standard baud rates via configuration utility without external clock source. |
| Buffer Size | 256 bytes TX + 256 bytes RX; enables reliable full-duplex streaming at high baud rates with minimal host intervention. |
| Operating Voltage | 1.71 V to 5.50 V; allows direct interfacing with 1.8-V, 3.3-V, or 5-V logic domains and flexible power architecture design. |
| Package | 32-pin QFN (5 × 5 × 1 mm, 0.5-mm pitch); RoHS-compliant, surface-mountable with thermal pad for industrial temperature range (–40 °C to 85 °C). |
| Flash Memory | 512 bytes; stores persistent USB descriptors, VID/PID, manufacturer/product strings, and unique serial number per unit. |
| GPIO Count | 8 pins; configurable as tristate, static output, LED drivers (8 mA), SLEEP#, BUSDETECT, or BCD signaling outputs. |
Pinout & Package
32-pin QFN (5 × 5 × 1 mm, 0.5-mm pitch) with exposed thermal pad; pin-compatible with CY7C65213A-32LTXI but lacks RS485 support.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCD | Digital supply | Core voltage input (1.71–5.50 V); powers USB SIE, UART, and flash logic. |
| VCCIO | I/O supply | Configurable I/O voltage rail (1.71–5.50 V); sets logic levels for UART and GPIO pins independently of VCCD. |
| USBDP / USBDM | USB differential pair | Full-Speed USB interface with integrated 27-Ω series termination and 1.5-kΩ pull-up on USBDP. |
| TXD / RXD | UART data | Asynchronous serial transmit/receive lines; support RS232/RS422 level translation via external transceivers. |
| RTS# / CTS# | Hardware flow control | Active-low handshake signals; RTS# de-asserted at 93% RX buffer fill to pause upstream transmission. |
| RESET# | Active-low reset | Asynchronous reset input; pulls internal state machines to known default on falling edge. |
| SLEEP# | Suspend indicator | Open-drain output asserted low during USB suspend; used to gate external power rails in bus-powered designs. |
| RI# | Remote wakeup | Configurable as wake-up source; triggers USB remote wakeup when asserted after host enables feature via SET_FEATURE. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 48-MHz oscillator | Eliminates need for external crystal or clock source, reducing BOM count and PCB area in space-constrained designs. |
| Unique serial number per device | Fixes COM port assignment across reconnections in Windows, preventing driver re-enumeration issues in field-deployed systems. |
| Battery charging detection (BCD) | Identifies SDP/CDP/DCP ports using dedicated BCD0/BCD1 GPIO outputs, enabling intelligent power management in portable devices. |
| Configurable GPIOs with LED drive | Eight pins support 8-mA sink/source for status LEDs (TXLED#/RXLED#), simplifying visual diagnostics without external drivers. |
| On-the-fly UART parameter update | UART format (data/stop bits, parity), baud rate, and flow control settings modified via USB without firmware reload or device reset. |
Applications
| Blood Glucose Meter | USB-to-RS232 Cable |
|---|---|
Use Scenario: Portable medical device uploads patient readings to PC or cloud via USB while operating on coin-cell battery. IC Role / Device Role / Timing Role: USB-UART bridge converts MCU's UART output to CDC-compliant USB virtual COM port with BCD-based charger detection. Use Value: Enables FDA-compliant data logging with fixed COM port assignment and <100 µA suspend current for multi-week battery life. | Use Scenario: Field-service technician connects legacy industrial equipment (e.g., PLC, sensor) with RS232 interface to modern laptop. IC Role / Device Role / Timing Role: Protocol-transparent bridge translating RS232 voltage levels (via external MAX3232) to USB CDC class without custom driver installation. Use Value: Delivers plug-and-play operation on Windows/macOS/Linux using royalty-free VCP drivers and supports 3 Mbps max throughput for fast firmware updates. |
| Point-of-Sale Terminal | Industrial Test & Measurement |
Use Scenario: Compact retail terminal integrates barcode scanner, receipt printer, and cash drawer via UART peripherals while connecting to host PC via USB. IC Role / Device Role / Timing Role: Centralized USB hub endpoint providing isolated UART channels with RTS/CTS flow control to prevent data loss during high-speed printing. Use Value: Ensures deterministic latency under 5 ms for real-time transaction processing and supports 0–70 °C commercial temperature range. | Use Scenario: Benchtop oscilloscope or multimeter uses UART to communicate with microcontroller-based analog front-end and exposes USB interface to PC control software. IC Role / Device Role / Timing Role: High-reliability bridge with 256-byte buffers and framing/parity error reporting for accurate command-response protocol execution. Use Value: Guarantees error-free data transfer at 115.2 kbps over extended cable runs and supports –40 °C to 85 °C industrial ambient conditions. |
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 |
|---|---|---|---|
| FTDI FT232RL | Requires external 6-MHz crystal; no BCD support; 256-byte buffers; 3.3-V only I/O; no GPIO configurability. | Lacks battery charge detection and flexible voltage I/O; limited to 3.3-V systems without level-shifting. | Select when crystal-based timing is acceptable and BCD/variable VCCIO are not required. |
| Cypress CY7C65213A-32LTXI | Same package and pinout; adds RS485 transceiver support via UART pins; identical USB/UART/GPIO specs. | Enables half-duplex RS485 networks (e.g., Modbus RTU) where CY7C65213-32LTXIT cannot be used. | Select when RS485 interface capability is needed; otherwise, CY7C65213-32LTXIT offers cost advantage for RS232/RS422-only use cases. |
Compared with FT232RL, CY7C65213-32LTXIT eliminates crystal BOM cost and adds BCD and dual-voltage I/O; compared with CY7C65213A-32LTXI, it excludes RS485 support but maintains identical footprint and driver compatibility for simpler UART bridging.
Availability
CY7C65213-32LTXIT is available at Aetrix Electronics and suitable for blood glucose meters, USB-to-RS232 cables, and point-of-sale terminals requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature support.
Supply support for CY7C65213-32LTXIT 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
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable system-on-chip (PSoC), USB, memory, and analog solutions for industrial, automotive, and consumer markets.
CY7C65213 belongs to Cypress's USB-Serial Bridge Controller product line, designed specifically to simplify USB integration into UART-based embedded systems with minimal external components and broad OS driver support.
FAQ
Does CY7C65213-32LTXIT support RS485 communication?
No. CY7C65213-32LTXIT supports only RS232 and RS422 interfaces via external transceivers. RS485 capability is exclusive to the CY7C65213A variant, which shares the same package and pinout but adds half-duplex RS485 driver enable control through UART signal mapping.
Can the device operate from a 1.8-V supply?
Yes. VCCD and VCCIO both accept 1.71 V to 5.50 V, enabling direct connection to 1.8-V logic domains without level shifters. The internal regulator and oscillator function correctly at 1.8 V, and all GPIOs retain full drive strength and timing compliance.
Is a crystal required for USB operation?
No. The device integrates a factory-trimmed 48-MHz oscillator meeting USB Full-Speed timing accuracy requirements (±0.25% over temperature and voltage), eliminating the need for an external crystal, load capacitors, or associated PCB layout constraints.
How is the unique serial number programmed and retained?
The unique serial number is factory-programmed into the 512-byte flash memory and persists across power cycles and USB disconnects. It can be read via the Cypress configuration utility or custom host software using vendor-specific USB requests, ensuring consistent COM port enumeration in Windows environments.
CY7C65213-32LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Bridge, USB to UART
- Interface:
- UART
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.71V ~ 5.5V
- Current - Supply:
- 20mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-QFN (5x5)
- Grade:
- -
- Qualification:
- -
CY7C65213-32LTXIT FAQ
1.How can I place an order for CY7C65213-32LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65213-32LTXIT 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 CY7C65213-32LTXIT reliable?
The price and inventory of CY7C65213-32LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65213-32LTXIT is usually 5 days.
3.What payment methods are accepted for CY7C65213-32LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65213-32LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65213-32LTXIT?
CY7C65213-32LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65213-32LTXIT 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 CY7C65213-32LTXIT?
For technical support, including CY7C65213-32LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65213-32LTXIT requirements.
6.How does Aetrix verify that CY7C65213-32LTXIT is sourced from the original manufacturer or authorized distributors?
All CY7C65213-32LTXIT 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 CY7C65213-32LTXIT meets industry standards.
7.What is the process for return or replacement of CY7C65213-32LTXIT?
All CY7C65213-32LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65213-32LTXIT, 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 CY7C65213-32LTXIT part is unused and in its original packaging.
Return procedure for CY7C65213-32LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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