The first three HT42B53x-1 devices adopt the USB CDC class protocol while the HT42B564-1 device adopts the USB HID class protocol. No matter which device is chosen none of them require the installation of an additional driver.

Regarding the HT42B534-1 – USB to UART Bridge, the user can directly use its integrated USB interface to upgrade their traditional UART solutions, such as traditional RS-232 blood pressure meters, electronic scales and other consumer products.

With respect to the HT42B533-1 – USB to SPI Bridge and the HT42B532-1 – USB to I²C Bridge applications, both of the SPI and I²C interfaces can operate in a Master or Slave mode configuration using control commands. This feature makes these two devices available for other data transmission applications, such as RF dongles, etc.

This new range of USB Bridge devices can support Windows XP (SP2), Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Mac OS X as well as Android 4.0 and also later versions. These devices are supplied in 8-pin SOP, 10-pin SOP, 10-pin MSOP or 16-pin NSOP package types depending on the chosen device. Having small package outlines results in reduced PCB area providing increased convenience for product development.