 | |  | |
| PartNumber | AT90USB646-AU | AT90USB646-AUR | AT90USB646-16MU |
| Description | 8-bit Microcontrollers - MCU USB 64K FLASH 16 MHz | 8-bit Microcontrollers - MCU USB 64K FLASH 16 MHz | 8-bit Microcontrollers - MCU AVR USB 64K FLASH5V |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Series | AT90USB646 | AT90USB646 | - |
| Packaging | Tray | Reel | - |
| Height | 1.05 mm | 1.05 mm | - |
| Length | 14 mm | 14 mm | - |
| Width | 14 mm | 14 mm | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 90 | 1000 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Unit Weight | 0.012720 oz | 0.012720 oz | - |
| Mounting Style | - | SMD/SMT | - |
| Package / Case | - | TQFP-64 | - |
| Core | - | AVR | - |
| Data Bus Width | - | 8 bit | - |
| Maximum Clock Frequency | - | 16 MHz | - |
| Program Memory Size | - | 64 kB | - |
| Data RAM Size | - | 4 kB | - |
| ADC Resolution | - | 10 bit | - |
| Number of I/Os | - | 48 I/O | - |
| Operating Supply Voltage | - | 2.7 V to 5.5 V | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Product | - | MCU | - |
| Program Memory Type | - | Flash | - |
| Data RAM Type | - | SRAM | - |
| Data ROM Size | - | 2 kB | - |
| Data ROM Type | - | EEPROM | - |
| Interface Type | - | 2-Wire, SPI, USART, USB | - |
| Analog Supply Voltage | - | - | - |
| DAC Resolution | - | - | - |
| I/O Voltage | - | 2.7 V to 5.5 V | - |
| Number of ADC Channels | - | 8 Channel | - |
| Number of Timers/Counters | - | 4 Timer | - |
| Processor Series | - | megaAVR | - |
| Supply Voltage Max | - | 5.5 V | - |
| Supply Voltage Min | - | 2.7 V | - |
| Watchdog Timers | - | Watchdog Timer | - |