Single high-speed USB 2.0 chip (FT4222H), a flexible and configurable SPI / I2C interface. Single / Dual / Quad Core SPI master mode SPI interface supports configurable target speed. In SPI mode with up to four data patterns 28Mbps data fer rate. It supports up to four slave SPI master mode select control pins. SPI slave mode supports single and operating frequency up to 20MHz. I2C interface supports seven address, and is fully compatible with 2.1 and v3 specification I2C master / slave mode target run rate of 100Kbit and configuration of / S standard mode to reach 400kbit / s fast mode of 1Mbit / s and 3.4Mbit fast mode plus / s high-speed mode. GPIO can be configured via the USB bus controlled by the application software. Fully supports USB2.0 suspend / resume and remote . Supports battery charger detection. OTP memory USB ID (VID), product ID (PID), serial number, product description strings, and a variety of other vendors specific data. USB power configuration ; bus-powered and self-powered. FT4222H board jumper configuration mode, USB power configuration and VCCIO source selection. Integrated power-on reset circuit. The real driving output 3.3V CMOS and TTL input. (Operating voltage as low as 1.8V and 1.8V external power input to VCCIO) It supports a wide supply voltage range. USB2.0 low operating and suspend current; 68 mA (active typ) and 375uA (hang typ). Configurable I / O pin output drive strength: 4 mA (min ) and 16 mA (max); UHCI / OHCI / EHCI / compatible xHCI host controller. Onboard USB mini-B socket allows the module is connected to the PC. Product:Development Modules Type:USB 2.0 to QuadSPI/I2C Bridge Assessment Tools:FT4222H Power supply voltage:1.8 V,2.5 V,3.3 V Features:Development module for the FT4222H Hi-Speed USB2.0 to QuadSPI/I2c bridge Size:50.65x23.9x1.6 mm To:FT4222H Interface Type:I2C,SPI Maximum operating temperature:+85℃ Minimum Operating Temper