| PartNumber | ATMEGA1280-16AUR | ATMEGA1280-16AU | ATMEGA1280-16CU |
| Description | 8-bit Microcontrollers - MCU AVR 128K FLASH 8K SRAM,4KB EEPROM | 8-bit Microcontrollers - MCU 128kB Flash 4kB EEPROM 86 I/O Pins | 8-bit Microcontrollers - MCU AVR 128K FLASH 8K SRAM 4KB EE-16 MHZ |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TQFP-100 | TQFP-100 | CBGA-100 |
| Series | ATmega128x | ATmega128x | ATmega128x |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz |
| Program Memory Size | 128 kB | 128 kB | 128 kB |
| Data RAM Size | 8 kB | 8 kB | 8 kB |
| Number of I/Os | 86 I/O | 86 I/O | 86 I/O |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Tray | Tray |
| Height | 1 mm | 1 mm | 0.8 mm |
| Length | 14 mm | 14 mm | 9 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 14 mm | 14 mm | 9 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 4 kB | 4 kB | 4 kB |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | JTAG/TWI/SPI/USART | 2-Wire, SPI, USART | 2-Wire, SPI, USART |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of Timers/Counters | 6 Timer | 6 Timer | 6 Timer |
| Processor Series | megaAVR | megaAVR | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 1500 | 90 | 250 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 2.7 V | 2.7 V | 2.7 V |
| Tradename | AVR | AVR | AVR |
| Unit Weight | 0.023175 oz | 0.023175 oz | - |
| ADC Resolution | - | 10 bit | 10 bit |
| Number of ADC Channels | - | 16 | 16 |