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| PartNumber | AT90USB1286-AU | AT90USB1286-AUR | AT90USB1286-16MU |
| Description | 8-bit Microcontrollers - MCU USB 128K FLASH 16 MHz | 8-bit Microcontrollers - MCU USB 128K FLASH 16 MHz | 8-bit Microcontrollers - MCU 128kB Flash 4kB EEPROM 48 I/O Pins |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TQFP-64 | TQFP-64 | - |
| Series | AT90USB1286 | AT90USB1286 | - |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 16 MHz | 20 MHz | - |
| Program Memory Size | 128 kB | 128 kB | - |
| Data RAM Size | 8 kB | 8 kB | - |
| ADC Resolution | 10 bit | - | - |
| Number of I/Os | 48 I/O | 48 I/O | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Reel | - |
| Height | 1.05 mm | 1.05 mm | - |
| Length | 14 mm | 14 mm | - |
| Product | MCU | - | - |
| Program Memory Type | Flash | Flash | - |
| Width | 14 mm | 14 mm | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 4 kB | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | 2-Wire, SPI, USART, USB | SPI, UART | - |
| Analog Supply Voltage | - | - | - |
| DAC Resolution | - | - | - |
| I/O Voltage | 2.7 V to 5.5 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 8 Channel | - | - |
| Number of Timers/Counters | 4 Timer | 4 Timer | - |
| Processor Series | megaAVR | - | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 90 | 1000 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Watchdog Timers | Watchdog Timer | - | - |
| Unit Weight | 0.012720 oz | 0.012720 oz | - |