Product Matrix

USB to UART Bridge

The CP210x is a single-chip USB to UART bridge that converts data traffic between USB and UART formats. The chip includes a complete USB 2.0 full-speed function controller, bridge control logic and a UART interface with transmit/receive buffers and modem handshake signals.  

Block Diagram

 

Features

USB 2.0 compliant, full-speed (12 Mbps)
1024 Bytes of EEPROM
User-programmable custom Baud rates
Supports all modem interface signals
Baud Rates: 300 bps to 1 Mbps
Industrial temp
–40 to +85 °C

Applications

USB to RS-232 converters
USB to RS-422/RS-485 converters
Upgrade of legacy RS232 devices
PDA USB interface cable
Cellular phone USB interface cable
Barcode readers
POS terminals

Resources

Documentation
  
  
  
  
  
  
 View All Documents
Design Tools
 View All Design Tools

Education Center

CP210x Comparison Chart

Related Products

USB MCUs

Embedded Modems

 

Product Pricing and
Availability

Buy or Sample
Contact Technical Support
Start


Product Matrix

Part NumberAvailable DocumentsEEPROM (bytes)FIFO (bytes)Digital Port I/O PinsCommunicationsInternal Osc.OtherPackageEval Kit 
CP2101Data Sheet
Data Short		5121 kBUSB to UART BridgeYesVREG28-pin 5x5 QFNCP2101EKSample
Buy
CP2102Data Sheet
Data Short
Errata		10241 kBUSB to UART BridgeYesVREG28-pin 5x5 QFNCP2102EKSample
Buy
CP2103Data Sheet
Data Short
Errata		10241 kB4USB to UART BridgeYesVREG, RS485, Split VDDIO28-pin 5x5 QFNCP2103EKSample
Buy

 

The CP210x devices also feature onboard EEPROM, a voltage regulator, a USB transceiver and an integrated internal oscillator, eliminating external components generally required in USB applications. System development is further simplified by the Evaluation Kits, which include a complete USB to RS232 evaluation board and royalty-free device drivers for PC, (Windows 98SE/2000/XP), Macintosh and Linux platforms. The USBXpress® development kit now includes support for USB to UART devices.

The CP2102 is recommended for all new designs, and is a pin-compatible upgrade to the CP2101. The CP2103 is recommended for designs requiring lower UART voltage, GPIO and RS485.