usb 2.0 i2c spi ft4222h ft4222hq usb serial ftdi usb slave

FT4222HQ - USB Hi-Speed to quad SPI/I2C IC

The FT4222HQ is a High/Full Speed USB 2.0-to-Quad SPI/I2C device controller in a compact 32-pin QFN package. The device requires an external crystal at 12MHz in order for the internal PLL and provides 128 bytes one-time-programmable (OTP) memory space for storing vendor-specific information.

FT4222HQ at a glance
Data rates Up to 53.8Mbps in quad SPI master mode USB Speed USB 2.0 Hi-Speed
USB Transfer Modes Bulk Interfaces I2C Master/Slave, SPI Master/Slave, GPIO
USB Host No Channels  Up to 4 (depending on mode)
USB Class Vendor I/O Voltage 1.8V to 3.3V
Operating Temperature -40°C to +85°C Virtual Com Port No
Package 32-pin VQFN Dimensions (mm) 5 x 5

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