CP2102C Single-chip USB to UART Bridges

The CP2102C devices are designed to quickly add USB to your applications by eliminating firmware complexity and reducing development time. These highly-integrated USB-to-UART bridge controllers provide a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space.

The USB-C CP2102C integrates a USB 2.0 full-speed function controller, USB transceiver, oscillator, and Universal Asynchronous Receiver/Transmitter (UART) into compact packages as small as 4 mm x 4 mm. By eliminating the complexity of firmware and driver development, the CP2102C devices facilitate quick USB connectivity with minimal development effort. Moreover, the inclusion of a CDC driver further streamlines the integration process, enabling seamless communication between the USB and UART interfaces without requiring custom USB driver installation. Additionally, support for USB-C ensures compatibility with the latest USB standards, offering a versatile and future-proof solution for user’s applications.

Cp2102c block diagram
Data transfer rates
Up to 3 Mbaud
Low operating current
9.5 mA

CP2102C Common Specs

Single-Chip USB to UART Data Transfer

  • Integrated USB transceiver; no external resistors required
  • Integrated clock; no external crystal required
  • On-chip power-on reset circuit
  • On-chip voltage regulator — 3.3 V output

Single power supply of 3.0 to 3.6 V or 3.0 to 5.25 V

USB Function Controller

  • USB Specification 2.0 compliant; full-speed (12 Mbps)
  • USB suspend states supported via SUSPEND pins

USB communication device class

  • Standard USB CDC requires no custom driver
  • Works with existing COM port Applications
  • Supported on Windows, Mac, and Linux

Universal Asynchronous Receiver/Transmitter (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 baud to 3 Mbaud
  • 512 byte receive buffer
  • 512 byte transmit buffer
  • Hardware handshaking supported

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