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USB to UART Controller (Gen 2) | Cypress Semiconductor

USB to UART Controller (Gen 2)

Cypress's USB to UART Controller (CY7C65213) is a fully integrated USB to UART controller that provides USB connectivity to devices with a UART interface. It is a USB-IF certified, fixed function device that requires no programming or driver development from the user. Its integrated termination resistors, voltage regulator, oscillator and Flash reduce BOM costs as no external components are required. This controller is available in SSOP and QFN packages. Cypress provides drivers for all popular operating systems including Windows, Linux, Android and Mac OS.

CY7C65213 has the industry's lowest stand-by power consumption (5uA) and integrates USB-IF Battery Charging specification ver. 1.2 (to detect the source of power on the USB port). These controllers are ideal for applications such as portable medical devices (like blood-glucose meters), point-of-sales terminals, Serial Cables (including USB-to-UART and RS232 cables) and many other applications requiring USB connectivity.


For additional product information and support, please email at

  1. Watch the USB to UART Controller Demo Video
  2. Download the USB to UART Controller Datasheet
  3. Purchase the USB to UART RDK (CYUSBS232)
  4. Download and install the USB to UART RDK Setup. The RDK setup includes
  5. Go through the USB-Serial Knowledge Base Articles
  6. Start your design and get your Schematics reviewed by the Cypress Applications Engineering Team using the Online Tech Support Case System

CYUSBS232 - USB-Serial Reference Design Kit (RDK)

CYUSBS232 RDK is a low cost kit to evaluate CY7C65213 USB-UART LP Bridge Controller. The kit along with its hardware documentation serves as a reference design for applications like USB-to-UART cables.

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    CYUSBS232 - USB-Serial Reference Design Kit (RDK)


  • USB to UART Cables
  • USB to RS232/RS422 Converters
  • POS Printers and Terminals
  • Portable Medical Devices (e.g., Blood Glucose Meters)
  • Networking System
  • USB Barcode Readers
  • USB Industrial and Power Meters
  • NFC Card Readers
  • Fingerprint Scanners
  • USB Wireless/Wired Modems
  • Medical Devices
  • Servers and Networking Switches
  • Home Gateways
  • USB Smartcard Readers
  • Set Top Boxes
  • GPS dongles
  • Set Top Boxes
  • Smart UPS
  • USB Audio and Low Bandwidth Video data transfer
  • USB MP3 Player Interface
  • USB Software/Hardware Encryption Dongles
  • Precision Trackpad (PTP) bridge
  • KVM Switch
  • AV Splitters
  • RC Toys
  • LCD Modules (LCM)
  • USB-Serial Adapters


  • USB-IF Certified – TID# 40860041
  • Full-Speed USB controller
  • 8-pin UART, Data rates up to 3 Mbps
  • Support for non-standard Baud rates
  • UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity
  • Supports parity, overrun, and framing errors
  • Supports flow control using CTS, RTS, DTR, DSR
  • 256 Byte Tx data buffers and 256 Byte Rx data buffers for UART
  • Integrated termination resistors, voltage regulator, on-chip oscillator and on-chip Flash – Reduced BOM costs
  • Compliant to USB-IF Battery Charging specification ver. 1.2 – Supports SDP (500 mA), CDP (1500 mA) and DCP (1500 mA) charging modes
  • Low Supply current consumption – 5uA (Typ) in Suspend mode and 15mA (Typ) in Active mode
  • Wide Supply voltage range – 1.71v to 5.5v
  • Wide USB voltage range – 3.3v to 5.25v
  • Support for bus powered, self powered, and high-power bus powered USB configurations
  • 8 GPIOs (can drive LEDs)
  • ESD protection: 2.2-kV HBM
  • Driver Support for Windows, Mac, Android & Linux Operating Systems
  • -40°C to 85°C extended operating temperature range.
  • Easy-to-use Configuration Utility – Configure VID, PID, Product and Manufacturer Descriptors, UART, Charger Detection, GPIOs
  • Available in compact Pb-free, RoHS compliant 28-pin SSOP (10.2mm x 5.3mm) and 32-pin QFN (5mm x 5mm) packages

Cypress provides free USB CDC and USB Vendor Class drivers for USB-to-UART Controllers (Gen2) and USB-Serial Bridge Controllers.

These drivers work with all parts of the USB-Serial Bridge Controller family:

  • USB to UART Controller (Gen 2)- CY7C65213
  • Single Channel USB-Serial Bridge Controller- CY7C65211
  • Dual Channel USB-Serial Bridge Controller- CY7C65215

Driver support is available for following Operating Systems:

  • Windows 8.1
  • Windows 8.1 x64
  • Windows 8
  • Windows 8 x64
  • Windows Server 2008 R2
  • Windows 7
  • Windows 7 x64
  • Windows Server 2008
  • Windows Server 2008 x64
  • Windows Vista
  • Windows Vista x64
  • Windows Server 2003
  • Windows Server 2003 x64
  • Windows XP
  • Windows XP x64
  • Linux
  • Mac OS X
  • Mac OS 9
  • Mac OS 8
  • Windows CE
  • Android

Cypress USB-Serial Windows drivers are WHQL certified and when you connect a USB-Serial device to your computer, they should be automatically downloaded by Windows Update. You can also download Windows Drivers for any of the above Operating Systems from the Drivers page. USB-Serial Bridge Controllers work directly with the built-in drivers of Linux, Mac and Android operating systems. SDK (containing libraries, drivers) for developing applications for Windows, Linux, Android and Mac operating systems can be downloaded from the USB-Serial Software page.