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| PartNumber | AT42QT1481-AU | AT42QT1481-AN | AT42QT1481-ANR |
| Description | Capacitive Touch Sensors QMatrix FMEA 48 Key Snsr IC | 44TQFP, 10x101mm, TRAY | 44TQFP, 10x101mm, T/R |
| Manufacturer | Atmel | - | - |
| Product Category | Capacitive Touch Sensors, Proximity Sensor ICs | - | - |
| Series | QMatrix | - | - |
| Type | Buttons | - | - |
| Packaging | Tray Alternate Packaging | - | - |
| Termination Style | SMD/SMT | - | - |
| Package Case | TQFP-44 | - | - |
| Operating Temperature | -40°C ~ 105°C | - | - |
| Number of Channels | 48 Channel | - | - |
| Interface | SPI, UART | - | - |
| Voltage Supply | 4.75 V ~ 5.25 V | - | - |
| Supplier Device Package | 44-TQFP (10x10) | - | - |
| Current Supply | 13mA | - | - |
| Number of Inputs | - | - | |
| Proximity Detection | No | - | - |
| LED Driver Channels | - | - | - |
| Resolution | 11 b | - | - |
| Sensor Type | Button | - | - |
| Temperature Range | - 40 C to +105 C | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Interface Type | SPI UART | - | - |
| Dimensions | 10 mm L x 10 mm W | - | - |