The HT42B564-x device is a high performance USB to UART bridge controller with fully integrated USB and UART interface functions, designed for applications that communicate with various types of UART. The device includes a USB 2.0 full speed compatible interface which is used for PC communication. The device also includes a fully integrated high speed oscillator which is used as clock source for the USB and UART baud rate generator. The baud rate generator can support up to 115200bps of baud rate for the UART interface.

Features:

• Operating Voltage (VDD): 3.3V~5.5V
• UART pins Voltage (VDDIO): 1.8V~VDD (Less than VDD voltage)
• Power down and wake-up functions to reduce power consumption
• Fully integrated 12MHz oscillator with 0.25% accuracy for all USB modes which requires no external components
• USB interface
  • USB 2.0 Full Speed compatible
  • Implements USB Human Interface Device (HID) class
  • Internal 1.5kΩ pull-high resistor on D+ pin
• Fully-duplex Universal Asynchronous Receiver and Transmitter Interface -- UART
  • Supports Baud Rate up to 115200bps
  • Supports maximum 32 bytes transmit buffer and 32 bytes receive buffer
  • UART Data formats supported:
    • Data bits: 8
    • Stop bits: 1 and 2
    • Parity: odd, even, no parity
• Supports RX pin resume signal to request a remote wake-up
• Supports VDDIO pin for UART pins power supply
• Supports standard Windows® drivers for Windows XP, Vista, Win 7, Win 8/8.1, Win10
• Package types: 10-pin SOP