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Infineon Technologies CY7C65213-32LTXI
- Part No.:
- CY7C65213-32LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY7C65213-32LTXI.pdf
- Description:
- IC USB TO UART BRIDGE 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,481
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Product details
Overview
CY7C65213-32LTXI 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 battery charger detection (BCD Rev. 1.2, peripheral detect only), used in USB-to-RS232/RS422 legacy upgrades for POS terminals and blood glucose meters.
For engineers reviewing the CY7C65213-32LTXI datasheet, CY7C65213-32LTXI pinout, CY7C65213-32LTXI application, or CY7C65213-32LTXI equivalent, key selection criteria include UART interface flexibility (2-/4-/6-/8-pin), integrated 48-MHz oscillator (no external crystal), bus/self-powered operation (1.71–5.50 V), industrial temperature range (–40 °C to +85 °C), and RoHS-compliant 5 × 5 × 1 mm QFN package.
Technical Context
The CY7C65213-32LTXI implements a USB 2.0 Full-Speed Serial Interface Engine (SIE) with integrated 1.5-kΩ pull-up on USBDP and internal 22-Ω series termination resistors on USB data lines. It uses an internal 48-MHz oscillator for USB timing and a 32-kHz oscillator for suspend/resume control.
Its UART subsystem supports full-duplex asynchronous communication with programmable data format (7/8 data bits, 1/2 stop bits, no/even/odd/mark/space parity), hardware flow control (CTS#/RTS#, DTR#/DSR#), break signal generation, and error detection (parity, framing, overrun). The device lacks RS485 support-distinguishing it from the CY7C65213A variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed at 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; enables high-throughput bridging for industrial telemetry and medical diagnostics without external clocking. |
| Buffer Size | 256 bytes TX + 256 bytes RX; reduces host polling frequency and improves real-time responsiveness in embedded USB-UART links. |
| Operating Voltage | 1.71 V to 5.50 V; supports direct connection to Li-ion battery rails (3.0–4.2 V) and mixed-voltage MCU interfaces. |
| Temperature Range | –40 °C to +85 °C (industrial grade); validated for deployment in uncontrolled environments like field-deployed test equipment. |
| ESD Protection | 2.2-kV HBM; meets IEC 61000-4-2 Level 2 for robustness in handheld and portable medical devices. |
| Package | 32-pin QFN (5 × 5 × 1 mm, 0.5-mm pitch); enables compact PCB layout with thermal pad for sustained 3 Mbps operation. |
Pinout & Package
Package: 32-pin QFN (5 mm × 5 mm × 1 mm, 0.5-mm pitch), RoHS-compliant, with exposed thermal pad (pin 32 = VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCIO | I/O supply voltage input | Supplies power to GPIO and UART I/Os; configurable independently from core logic (VCCD) for mixed-voltage interfacing. |
| USBDP / USBDM | USB differential data pair | Integrated 22-Ω series termination and 1.5-kΩ DP pull-up eliminate external components for USB compliance. |
| TXD / RXD | UART transmit/receive data | Direct CMOS-level UART signals; require external transceiver (e.g., MAX3232) for RS232 or SN65HVD230 for RS422. |
| RTS# / CTS# | Hardware flow control handshake | Active-low signals enable automatic pause/resume of UART transmission when RX buffer reaches 93% (pause) or 75% (resume). |
| GPIO0–GPIO7 | Configurable general-purpose I/O | Programmable via flash as tristate, drive-high/low, LED drivers (TXLED#/RXLED#), SLEEP#, or BCD0/BCD1 outputs. |
| RESET# | Active-low reset input | Asynchronous hardware reset; pulls device to known state independent of USB enumeration or firmware execution. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 48-MHz oscillator | Eliminates external crystal and associated load capacitors, reducing BOM count and board area by ≥3 components. |
| 512-byte configuration flash | Stores VID/PID, serial number, and descriptors; enables COM port persistence and OEM branding without host-side software changes. |
| USB suspend current management | SLEEP# pin asserts during USB suspend; supports sub-100 µA bus-powered standby for battery-operated medical devices. |
| Multi-OS driver support | Pre-certified VCP drivers for Windows (XP–10), macOS (10.6+), Linux (kernel ≥2.6.35), and Android (Gingerbread+); no custom driver development required. |
| UART interface configurability | Runtime-selectable 2-/4-/6-/8-pin mode via configuration utility; adapts pin mapping to match legacy UART peripherals without hardware redesign. |
Applications
| Point-of-Sale (POS) Terminals | Blood Glucose Meters |
|---|---|
Use Scenario: Integrating legacy serial receipt printers and barcode scanners into modern USB-based POS systems. IC Role / Device Role / Timing Role: USB-to-UART protocol translator enabling CDC-class enumeration as virtual COM port on Windows/Linux hosts. Use Value: Eliminates need for external level shifters or USB host controllers; supports hot-plug, plug-and-play, and persistent COM port assignment across reboots. | Use Scenario: Adding USB connectivity to handheld diagnostic devices powered by single-cell lithium batteries. IC Role / Device Role / Timing Role: Low-power bridge with BCD peripheral detection and 1.71–5.50 V operation enabling direct battery coupling. Use Value: Enables USB charging status reporting and firmware updates over USB while maintaining <100 µA suspend current for >1-year shelf life. |
| Industrial Test & Measurement | USB-to-RS232 Cables |
Use Scenario: Retrofitting benchtop oscilloscopes and multimeters with USB connectivity for PC-based data logging. IC Role / Device Role / Timing Role: High-reliability UART bridge supporting 3 Mbps baud rates and hardware flow control for burst-mode waveform capture. Use Value: Maintains signal integrity over long cables via RTS#/CTS# handshaking; avoids data loss during high-speed transfers to host applications. | Use Scenario: Manufacturing pre-certified USB-to-DB9 adapter cables for industrial automation PLCs. IC Role / Device Role / Timing Role: Turnkey bridge IC with integrated USB termination and flash-stored descriptors, eliminating external EEPROM and crystal. Use Value: Reduces cable BOM cost by $0.35/unit and achieves USB-IF certification without custom firmware validation. |
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 integrated BCD; 256-byte buffers; supports only CDC class (no PHDC/vendor class). | Lacks battery charge detection and multi-class USB device support; limited to basic UART bridging. | Select when crystal-based timing is acceptable and BCD/PHDC features are unnecessary. |
| Cypress CY7C65213A-32LTXI | Same package and pinout; adds RS485 transceiver compatibility via UART pins; identical USB/flash/GPIO specs. | Enables three-wire half-duplex RS485 networks (e.g., Modbus RTU) without changing PCB layout. | Select when RS485 interoperability is required; drop-in replacement with no firmware or layout change. |
Compared with FT232RL and CY7C65213A-32LTXI, the CY7C65213-32LTXI uniquely balances low-component-count USB bridging with BCD peripheral detection and multi-OS driver support-making it optimal for battery-powered medical and portable industrial devices where RS485 is not needed.
Availability
CY7C65213-32LTXI is available at Aetrix Electronics and suitable for Point-of-Sale (POS) terminals, blood glucose meters, and industrial test & measurement equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for CY7C65213-32LTXI 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
Cypress Semiconductor (now part of Infineon Technologies) designs high-performance, low-power mixed-signal ICs for embedded connectivity, memory, and programmable systems.
The CY7C65213 belongs to Cypress's USB-Serial Bridge Controller product line, engineered specifically to simplify USB integration into UART-based legacy systems while minimizing external components and qualification effort.
FAQ
Does CY7C65213-32LTXI support RS485 communication?
No. The CY7C65213-32LTXI supports UART interfacing to RS232 and RS422 transceivers only. RS485 capability is exclusive to the CY7C65213A variant, as confirmed in Cypress Document 001-81011 Rev. *O Table 1. This distinction is hardware-defined and cannot be enabled via firmware or configuration utility.
What is the maximum reliable UART baud rate with flow control enabled?
The CY7C65213-32LTXI supports UART data rates up to 3 Mbps under all operating conditions. With RTS#/CTS# flow control active, reliable operation is maintained at 3 Mbps because the 256-byte RX buffer uses 93% watermark triggering and 75% resume thresholds-preventing overflow even during sustained high-speed transfers to host applications.
Can the unique serial number feature be disabled or overwritten after programming?
No. The unique serial number is factory-programmed into one-time-programmable (OTP) memory within the 512-byte flash and cannot be erased or rewritten. Once configured via Cypress's USB-Serial Configuration Utility, it permanently fixes the COM port assignment in Windows and other OSes-ensuring deterministic enumeration across repeated plug/unplug cycles.
Is external crystal required for USB or UART operation?
No. The CY7C65213-32LTXI integrates a 48-MHz oscillator for USB timing and a 32-kHz oscillator for suspend/resume functions. Neither USB nor UART operation requires an external crystal, resistor, or capacitor-reducing bill-of-materials count and PCB footprint versus alternatives like FT232RL.
CY7C65213-32LTXI 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:
- -
CY7C65213-32LTXI FAQ
1.How can I place an order for CY7C65213-32LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65213-32LTXI 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 CY7C65213-32LTXI reliable?
The price and inventory of CY7C65213-32LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65213-32LTXI is usually 5 days.
3.What payment methods are accepted for CY7C65213-32LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65213-32LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65213-32LTXI?
CY7C65213-32LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65213-32LTXI 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 CY7C65213-32LTXI?
For technical support, including CY7C65213-32LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65213-32LTXI requirements.
6.How does Aetrix verify that CY7C65213-32LTXI is sourced from the original manufacturer or authorized distributors?
All CY7C65213-32LTXI 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 CY7C65213-32LTXI meets industry standards.
7.What is the process for return or replacement of CY7C65213-32LTXI?
All CY7C65213-32LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65213-32LTXI, 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 CY7C65213-32LTXI part is unused and in its original packaging.
Return procedure for CY7C65213-32LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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