usb 2.0 i2c spi ft4222h ft4222hq usb serial ftdi usb slave

FT4222HQ - Hi-Speed USB to SPI/I2C Bridge

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 to operate. It supports multi-voltage IO: 1.8/2.5 and 3.3V and provides 128 bytes one-time-programmable (OTP) memory space for storing vendor-specific information.

FT4222HQ features:

  • Data rates: Up to 53.8Mbps in Quad SPI master mode
  • Interfaces: I2C Master/Slave, SPI Master/Slave, GPIO
  • USB transfer modes:  Bulk
  • Package: 32-pin VQFN
  • I/O voltage: 1.8V to 3.3V
  • Virtual COM port: No
  • USB host: No
  • Channels: Up to 4, depending on mode
  • USB Class: Vendor
  • Operating temperature: -40°C to +85°C

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