ASSP converts between USB and four peripheral interfaces

7th October 2021
Mick Elliott

With the cost-effective and power-saving GoBridge Application-Specific standard part (ASSP), Gowin is launching a product line that can be an option to FTDI USB Bridge products.

The GWU2X family enables conversion between USB (Universal Serial Bus) and four peripheral interfaces (JTAG, SPI, I2C and GPIO), while the GWU2U series is suitable for conversion between USB and UART.

This provides Gowin with a viable solution to address common interface bridging issues in a variety of consumer, automotive, industrial and communications markets - such as USB-to-JTAG/USB-to-UART debug on the evaluation kit or multi-protocol converters. The GoBridge ASSP product line is available at

The GWU2X series supports I2C, SPI and JTAG host interfaces with independent clock adjustment and receive buffer and can be used to program Gowin‘s current FPGA portfolio.

Support for the UART host interface, on the other hand, is provided by the GWU2U elements, also with independent adjustment setting and receive buffer.

These enable simple and programming-free communication through integrated VCP (Virtual Com Port) OS drivers.

With an independent I/O core supply, the GWU2U series supports 3.3V, 2.5V and 1.8V I/O standards. In addition, Windows drivers and an API in C/C++ ensure optimal use with host devices.

Both series come in a QFN32 package with dimensions of 5x5x0.5mm.

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