I N T E R FAC E SOLUTIONS USB Bridge Solutions www.silabs.com/usb CP21xx FEATURES •USB 2.0 Compliant, full-speed (12 Mbps) •No external crystal required •Up to 1024 Bytes of EEPROM or EPROM DESCRIPTION •User programmable custom Baud rates Silicon Labs’ new CP21xx USB bridge ICs eliminate software complexity and •Supports all modem interface signals driver compatibility issues, providing a cost-effective, small-footprint turnkey •Baud rates up to 2 Mbps solution for adding USB and human interface device (HID)-USB connectivity to •Industrial temperature range -40 to 85 °C applications such as personal medical devices, cellular and cordless phones, •SMBus master device (CP2112) smart card and flash card readers, personal digital assistants, MP3 players, bar code readers, wireless modems and industrial control systems. •HID class support, no driver installation needed (CP2112) With the rapid proliferation of USB and HID-USB in the embedded world, APPLICATIONS developers are looking for painless, economical ways to embed USB connectivity in their designs. A leading supplier of USB connectivity solutions, Silicon Labs developed the CP21xx bridge family so that designers can add USB to microcontroller-based applications without the cost and complexity of developing sophisticated USB software. The CP21xx ICs require no USB expertise to deploy, enabling developers to focus time and resources on end applications. •USB to RS-232 converters •USB to Dual RS-232 converters •USB to RS-422/RS-285 converters •Upgrade of legacy RS-232 devices •PDA USB interface cable •Cellular phone USB interface cable •Barcode readers in Point-of-Sale terminals USB-TO-UART BRIDGE BLOCK DIAGRAM •Portable medical equipment •PC peripherals VBUS D+ D– Voltage Regulator 48 MHz Oscillator USB Transceiver USB Function Controller www.silabs.com/usb •Industrial connectivity (CP2112) (Some Devices) TX Buffer UART RX Buffer UART EEPROM or EPROM •Barcode readers in Point-of-Sale terminals I/O Control (CP2105 Only) UART I/F (Modem) EASY USB TO UART BRIDGE COMMUNICATION Download the white paper “USB Simplified”: www.silabs.com/usb I N T E R FAC E SOLUTIONS USB Bridge Solutions www.silabs.com/usb Development Tools and Turnkey Support from Silicon Labs Silicon Labs offers several single-chip connectivity bridge solutions to support USB to serial protocols as well as specialized bridges for human interface device (HID) class applications. Complete tools are provided to help designers throughout the entire project enabling USB connectivity to be easily added to any MCU in our portfolio. These solutions offer hardware and software platforms to easily set up and configure, compile and debug a project. Full documentation and a broad range of third-party compilers and development tools are available. • Easily implement USB in your designs • Pre-programmed with all the necessary USB software • No need to be familiar with the USB specification • Seamless compatibility with most operating systems • Evaluation kits available to support your design CP2104-EK CP2105-EK CP2110-EB C P2112-EK USB Bridges: www.silabs.com/usb PART NUMBER DESCRIPTION EEPROM (BYTES) RAM (BYTES) DIGITAL PORT I/O PINS SERIAL BUSES INTERNAL TEMP. RANGE OSC CP2104 UART to USB Bridge 1024 1152 4 UART, USB 2.0 • CP2105 UART to Dual USB Bridge 296 608 5 UART, USB 2.0 CP2110 HID USB to UART Bridge 343 960 10 CP2112 USB to SMBus Bridge 194 512 8 OTHER PACKAGE EVAL KIT –40 to 85 ºC Volt Reg, RS-485, Split V DDIO QFN24 CP2104EK • –40 to 85 ºC Volt Reg, RS-485, Split V DDIO QFN24 CP2105EK UART, USB 2.0 • –40 to 85 ºC Volt Reg, RS-485, Split V DDIO QFN24 CP2110EK USB 2.0, SMBus • –40 to 85 ºC Volt Reg QFN24 CP2112EK S I L I C O N L A B O R ATO R I E S I N C . | 4 0 0 W. CESAR CHAVEZ | AUSTIN, TX 78701 | 877-444-3032 | SILABS.COM © 2010, Silicon Laboratories Inc. Silicon Laboratories and the Silicon Labs logo are trademarks or registered trademarks of Silicon Laboratories Inc. All other product or service names are the property of their respective owners. For the most up to date information please see your sales representative or visit our website at www.silabs.com.