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| PartNumber | FT122T-R | FT122T-U | FT122T |
| Description | USB Interface IC USB CONTROLLER W/ PARALLEL IC | USB Interface IC USB CONTROLLER W/ PARALLEL BUS IC | USB 2.0 CONTROLLER PARALLEL BUS TSSOP28, RL |
| Manufacturer | FTDI | FTDI | FTDI, Future Technology Devices International Ltd |
| Product Category | USB Interface IC | USB Interface IC | Interface - Controllers |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-28 | TSSOP-28 | - |
| Series | FT122 | FT122 | FT122 |
| Product | USB Controllers | USB Controllers | USB Peripheral Controllers |
| Type | Peripheral Controller | Peripheral Controller | Peripheral Controller |
| Standard | USB 2.0 | USB 2.0 | USB 2.0 |
| Speed | High Speed | Full Speed | High-Speed |
| Data Rate | 480 Mb/s | 12 Mb/s | 480 Mb/s |
| Operating Supply Current | 3.9 mA | - | 3.9 mA |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Maximum Operating Temperature | + 85 C | - | + 85 C |
| Packaging | Reel | Tube | Digi-ReelR Alternate Packaging |
| Brand | FTDI | FTDI | - |
| Interface Type | SPI, USB | - | SPI USB |
| Moisture Sensitive | Yes | Yes | - |
| Operating Supply Voltage | 4 V to 5.5 V | - | 4 V to 5.5 V |
| Product Type | USB Interface IC | USB Interface IC | - |
| Factory Pack Quantity | 2500 | 50 | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Tradename | FT12 | FT12 | - |
| Unit Weight | 0.006102 oz | 0.014215 oz | 0.006102 oz |
| Package Case | - | - | TSSOP-28 |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Function | - | - | Controller |
| Interface | - | - | Parallel |
| Voltage Supply | - | - | 3.3V, 5V |
| Supplier Device Package | - | - | 28-TSSOP |
| Current Supply | - | - | 3.9mA |
| Protocol | - | - | USB |
| Standards | - | - | USB 2.0 |