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| Part Number | FT4222HQ-D-T | FT4222HQ-D-R | FT4222HQ-R | FT4222HQ-B-R | FT4222HQ-T |
| Manufacturer | FTDI, Future Technology Devices International Ltd | FTDI, Future Technology Devices International Ltd | FTDI, Future Technology Devices International Ltd | FTDI, Future Technology Devices International Ltd | FTDI, Future Technology Devices International Ltd |
| Package/Case | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad |
| Programmable | Not Verified | Not Verified | Not Verified | Not Verified | Not Verified |
| Protocol | USB | USB | USB | USB | USB |
| Function | Bridge, USB to I2C/SPI | Bridge, USB to I2C/SPI | Bridge, USB to I2C/SPI | Bridge, USB to I2C/SPI | Bridge, USB to I2C/SPI |
| Interface | I2C, SPI | I2C, SPI | I2C | I2C | I2C, SPI |
| Standards | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
| Voltage - Supply | 1.8V, 2.5V, 3.3V, 5V | 1.8V, 2.5V, 3.3V, 5V | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 1.8V, 3.3V, 5V |
| Current - Supply | 78mA | 78mA | - | - | 78mA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Supplier Device Package | 32-VQFN (5x5) | 32-VQFN (5x5) | 32-VQFN (5x5) | 32-QFN (5x5) | 32-QFN (5x5) |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
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