| PartNumber | ATMEGA64-16MJ | ATMEGA64-16MC | ATMEGA64-16MI |
| Description | IC MCU 8BIT 64KB FLASH 64QFN | IC MCU 8BIT 64KB FLASH 64QFN | IC MCU 8BIT 64KB FLASH 64QFN |
| Manufacturer | Atmel | - | Atmel |
| Product Category | Embedded - Microcontrollers | - | Embedded - Microcontrollers |
| Series | AVRR ATmega | - | AVRR ATmega |
| Packaging | Tray | - | Tray |
| Package Case | 64-VFQFN Exposed Pad | - | 64-VFQFN Exposed Pad |
| Operating Temperature | -40°C ~ 85°C (TA) | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | 64-QFN (9x9) | - | 64-QFN (9x9) |
| Number of I O | 53 | - | 53 |
| Speed | 16MHz | - | 16MHz |
| EEPROM Size | 2K x 8 | - | 2K x 8 |
| Core Processor | AVR | - | AVR |
| RAM Size | 4K x 8 | - | 4K x 8 |
| Program Memory Type | FLASH | - | FLASH |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | - | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I2C, SPI, UART/USART | - | I2C, SPI, UART/USART |
| Voltage Supply Vcc Vdd | 4.5 V ~ 5.5 V | - | 4.5 V ~ 5.5 V |
| Core Size | 8-Bit | - | 8-Bit |
| Program Memory Size | 64KB (32K x 16) | - | 64KB (32K x 16) |
| Data Converters | A/D 8x10b | - | A/D 8x10b |
| Oscillator Type | Internal | - | Internal |