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| PartNumber | ATMEGA2561-16AU | ATMEGA2561-16AUR | ATMEGA2561-16AI |
| Description | 8-bit Microcontrollers - MCU 256kB Flash 4kB EEPROM 54 I/O Pins | 8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-16MHz | 8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 5V |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | N |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TQFP-64 | TQFP-64 | TQFP-64 |
| Series | ATmega256x | ATmega256x | ATmega256x |
| 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 | 256 kB | - | 256 kB |
| Data RAM Size | 8 kB | - | 8 kB |
| Number of I/Os | 54 I/O | - | 54 I/O |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Maximum Operating Temperature | + 85 C | - | + 85 C |
| Packaging | Tray | Reel | - |
| Height | 1 mm | - | 1 mm |
| Length | 14 mm | - | 14 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | - | Flash |
| Width | 14 mm | - | 14 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | - | SRAM |
| Data ROM Size | 4 kB | - | 4 kB |
| Data ROM Type | EEPROM | - | EEPROM |
| Interface Type | 2-Wire, SPI, USART | - | 2-Wire, SPI, USART |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 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 | 90 | 1000 | 90 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | - | 5.5 V |
| Supply Voltage Min | 4.5 V | - | 4.5 V |
| Tradename | AVR | AVR | AVR |
| Unit Weight | 0.012720 oz | 0.012720 oz | 0.012720 oz |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Microchip Technology / Atmel |
ATMEGA2561-16AU | 8-bit Microcontrollers - MCU 256kB Flash 4kB EEPROM 54 I/O Pins | |
| ATMEGA2561-16AUR | 8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-16MHz | ||
| ATMEGA2561-16MU | 8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 5V | ||
| ATMEGA2561-16MUR | 8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-16MHz | ||
| ATMEGA2561-16AI | 8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 5V | ||
| ATMEGA2561-16AI | IC MCU 8BIT 256KB FLASH 64TQFP | ||
| ATMEGA2561-16MUR | Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-16MHz | ||
| ATMEGA2561-16AUR | Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-16MHz | ||
| ATMEGA2561-16MU | Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 5V | ||
| ATMEGA2561-16AU | Microcontrollers - MCU 8-bit Microcontrollers - MCU 256kB Flash 4kB EEPROM 54 I/O Pins | ||
| ATMEGA2561-16MI | IC MCU 8BIT 256KB FLASH 64QFN |