CH9329 serial UART to standard USB HID device IC

CH9329 serial UART to standard USB HID device IC

CH9329 is a serial UART to standard USB HID device (keyboard, mouse, custom HID) chip. According to different operating modes, it can be identified as the standard USB keyboard device, USB mouse device or custom HID device on the computer. CH9329 receives serial port data sent from the client and according to the HID device specification, the data will be packaged and then transmitted to the computer via USB port. Though the provided computer software, users can also configure the chip operating mode, serial communication mode, serial communication baud rate, various timeout periods, VID, PID, and various USB string descriptors.

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• Supports 12Mbps full-speed USB transmission, USB 2.0compatible, built-in crystal oscillator.
  

• Default serial baud rate is 9600bps, which supports various common baud rates.
  

• Supports 5V and 3.3V power supply voltages.
  

• Multiple chip operating modes to adapt to different application requirements.
  

• Flexible switching among multiple serial communication modes.
  

• Supports normal keyboard and multimedia keyboard function, and supports full keyboard function.
  

• Supports absolute mouse and relative mouse functions.
  

Specifications of CH9329 serial UART to standard USB HID device IC

• USB Interface: Standard: USB 2.0 Full-Speed (12 Mbps).
  

• Operating Temperature: Range: -40°C to +85°C, making it suitable for industrial applications.
  

• Package Type: Form Factor: SMD package (such as QFN or SOP), which is optimized for PCB mounting in space-constrained designs.
  

• Driver Support: Operating Systems: Compatible with Windows, Linux, and macOS with available drivers for seamless integration.
  

• Additional Features: Customization: UART parameters can be configured via software for flexibility in different communication protocols.
  

Package Includes

• 1 x CH9329 serial UART to standard USB HID device IC