CP2102 product image


Silicon Laboratories

TheCP2102is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space. The CP2102 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, EEPROM, 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 EEPROM 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 EEPROM is programmed on-board via the USB allowing the programming step to be easily integrated into the product manufacturing and testing process.


CP2102 Features


  • •Single-Chip USB to UART Data Transfer

            - Integrated USB transceiver; no external resistors required

            - Integrated clock; no external crystal required

            - Integrated 1024-Byte EEPROM for vendor ID, product ID, serial number, power descriptor, release number,

           and product description strings

            - On-chip power-on reset circuit

            - On-chip voltage regulator: 3.3 V output

            - 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 Mbits

            - 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 Vista/XP/Server 2003/2000/98SE

            - Mac OS-X / OS-9

            - Linux

  • •USBXpress™ Direct Driver Support

            - Royalty-Free Distribution License

            - Windows Vista/XP/Server 2003/2000

            - Windows CE 5.0 and 4.2


CP2102 Example Applications


  • •Upgrade of RS-232 legacy devices to USB
  • •Cellular phone USB interface cable
  • •PDA USB interface cable
  • •USB to RS-232 serial adapter


IF you want know more about CP2102 please download CP2102 datasheet pdf.


Supply Voltage3.0to3.6V
Supply Current(Normal Operation; VREG Enabled)20to26mA
Supply Current(Suspended: VREG Enabled)80to100μA
Supply Current - USB Pull-up2200to228μA
Specified Operating Temperature Range–40to+85°C
CP2102 Replacement Parts
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