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    CP2102-GMR

    The CP2102/9 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS232 designs to USB using a minimum of components and PCB space. The CP2102/9 includes a USB 2.0 fullspeed function controller, USB transceiver, oscillator, EEPROM or EPROM, and asynchronous serial data bus
    (UART) with full modem control signals in a compact 5 x 5 mm QFN-28 package. No other external USB
    components are required.
    The on-chip programmable ROM may be used to customize the USB Vendor ID, Product ID, Product Description
    String, Power Descriptor, Device Release Number, and Device Serial Number as desired for OEM applications.
    The programmable ROM is programmed on-board via the USB, allowing the programming step to be easily
    integrated into the product manufacturing and testing process.
    Royalty-free Virtual COM Port (VCP) device drivers provided by Silicon Laboratories allow a CP2102/9-based
    product to appear as a COM port to PC applications. The CP2102/9 UART interface implements all RS-232
    signals, including control and handshaking signals, so existing system firmware does not need to be modified. In
    many existing RS-232 designs, all that is required to update the design from RS-232 to USB is to replace the RS232 level-translator with the CP2102/9. Direct access driver support is available through the Silicon Laboratories
    USBXpress driver set.
    An evaluation kit for the CP2102 (Part Number: CP2102EK) is available. The kit includes a CP2102-based USB-toUART/RS-232 evaluation board, a complete set of VCP device drivers, USB and RS-232 cables, and full
    documentation. Contact a Silicon Labs sales representative or go to www.silabs.com to order the CP2102
    Evaluation Kit. The CP2102 Evaluation Kit serves as an evaluation kit for both the CP2102 and CP2109.

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      SPECIFICATION

      Single-Chip USB to UART Data Transfer
      – Integrated USB transceiver; no external resistors
      required
      – Integrated clock; no external crystal required
      – Internal 1024-byte programmable ROM for vendor ID,
      product ID, serial number, power descriptor, release
      number, and product description strings
      – EEPROM (CP2102)
      – EPROM (One-time programmable) (CP2109)
      – On-chip power-on reset circuit
      – On-chip voltage regulator
      – 3.3 V output (CP2102)
      – 3.45 V output (CP2109)
      – 100% pin and software compatible with CP2101
      USB Function Controller
      – USB Specification 2.0 compliant; full-speed (12 Mbps)
      – USB suspend states supported via SUSPEND pins
      Asynchronous Serial Data BUS (UART)
      – All handshaking and modem interface signals
      – Data formats supported:
      – Data bits: 5, 6, 7, and 8
      – Stop bits: 1, 1.5, and 2
      – Parity: odd, even, mark, space, no parity
      – Baud rates: 300 bps to 1 Mbps
      – 576 Byte receive buffer; 640 byte transmit buffer
      – Hardware or X-On/X-Off handshaking supported
      – Event character support
      – Line break transmission
      Virtual COM Port Device Drivers
      – Works with existing COM port PC Applications
      – Royalty-free distribution license
      – Windows 8/7/Vista/Server 2003/XP/2000
      – Mac OS-X/OS-9
      – Linux
      USBXpress™ Direct Driver Support
      – Royalty-Free Distribution License
      – Windows 7/Vista/XP/Server 2003/2000
      – Windows CE
      Example Applications
      – Upgrade of RS-232 legacy devices to USB
      – Cellular phone USB interface cable
      – USB interface cable
      – USB to RS-232 serial adapter
      Supply Voltage
      – Self-powered: 3.0 to 3.6 V
      – USB bus powered: 4.0 to 5.25 V
      Package
      – RoHS-compliant 28-pin QFN (5×5 mm)
      Ordering Part Numbers
      – CP2102-GM
      – CP2109-A01-GM
      Temperature Range: –40 to +85 °C