| PartNumber | ATMEGA649-16MUR | ATMEGA649-16MI | ATMEGA649-16MU |
| Description | 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD16MHz,5V | IC MCU 8BIT 64KB FLASH 64QFN | Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC LCD |
| Manufacturer | Microchip | - | Atmel |
| Product Category | 8-bit Microcontrollers - MCU | - | Embedded - Microcontrollers |
| RoHS | Y | - | - |
| Package / Case | VQFN-64 | - | - |
| Series | ATmega649 | - | AVRR ATmega |
| Core | AVR | - | AVR |
| Data Bus Width | 8 bit | - | 8 bit |
| Maximum Clock Frequency | 16 MHz | - | 16 MHz |
| Operating Supply Voltage | 2.7 V to 5.5 V | - | 2.7 V to 5.5 V |
| Packaging | Reel | - | Tray Alternate Packaging |
| Product | MCU | - | MCU |
| Brand | Microchip Technology / Atmel | - | - |
| Processor Series | megaAVR | - | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 4000 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Tradename | AVR | - | ATMEGA |
| Mounting Style | - | - | SMD/SMT |
| Package Case | - | - | MLF-64 |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 64-QFN (9x9) |
| Number of I O | - | - | 53 |
| Speed | - | - | 16MHz |
| EEPROM Size | - | - | 2K x 8 |
| Core Processor | - | - | AVR |
| RAM Size | - | - | 4K x 8 |
| Program Memory Type | - | - | FLASH |
| Peripherals | - | - | Brown-out Detect/Reset, LCD, POR, PWM, WDT |
| Connectivity | - | - | SPI, UART/USART, USI |
| Voltage Supply Vcc Vdd | - | - | 2.7 V ~ 5.5 V |
| Core Size | - | - | 8-Bit |
| Program Memory Size | - | - | 64KB (32K x 16) |
| Data Converters | - | - | A/D 8x10b |
| Oscillator Type | - | - | Internal |
| Maximum Operating Temperature | - | - | + 85 C |
| Minimum Operating Temperature | - | - | - 40 C |
| Interface Type | - | - | JTAG SPI USART USI |
| Supply Voltage Max | - | - | 5.5 V |
| Supply Voltage Min | - | - | 2.7 V |
| Analog Supply Voltage | - | - | 1.8 V to 5.5 V |
| Number of ADC Channels | - | - | 8 Channel |
| Number of I Os | - | - | 54 I/O |
| Data RAM Size | - | - | 4 kB |
| Data ROM Size | - | - | 2 kB |
| I O Voltage | - | - | 1.8 V to 5.5 V |
| Number of Timers Counters | - | - | 3 Timer |
| Watchdog Timers | - | - | Watchdog Timer |
| ADC Resolution | - | - | 10 bit |
| Data RAM Type | - | - | SRAM |
| Data ROM Type | - | - | EEPROM |
| DAC Resolution | - | - | - |