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| PartNumber | ATMEGA64-16AI | ATMEGA64-16AC | ATMEGA64-16AJ |
| Description | 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC | 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC | IC MCU 8BIT 64KB FLASH 64TQFP |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | N | N | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TQFP-64 | TQFP-64 | - |
| Series | ATmega64 | ATmega64 | - |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 16 MHz | 16 MHz | - |
| Program Memory Size | 64 kB | 64 kB | - |
| Data RAM Size | 4 kB | 4 kB | - |
| Number of I/Os | 53 I/O | 53 I/O | - |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | 0 C | - |
| Maximum Operating Temperature | + 85 C | + 70 C | - |
| Height | 1 mm | 1 mm | - |
| Length | 14 mm | 14 mm | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Width | 14 mm | 14 mm | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 2 kB | 2 kB | - |
| Data ROM Type | EEPROM | EEPROM | - |
| Interface Type | 2-Wire, JTAG, SPI, USART | 2-Wire, JTAG, SPI, USART | - |
| Number of Timers/Counters | 2 Timer | 2 Timer | - |
| Processor Series | megaAVR | megaAVR | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 90 | 90 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V, 5.8 V | 5.5 V, 5.8 V | - |
| Supply Voltage Min | 4.2 V, 4.5 V | 4.2 V, 4.5 V | - |
| Tradename | AVR | AVR | - |
| Unit Weight | 0.012720 oz | 0.012720 oz | - |
| Moisture Sensitive | - | Yes | - |