| PartNumber | ATMEGA8-16AU | ATMEGA8-16AUR | ATMEGA8-16AC |
| Description | 8-bit Microcontrollers - MCU 8kB Flash 0.5kB EEPROM 23 I/O Pins | 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-16MHz, IND | 8-bit Microcontrollers - MCU AVR 8K FLASH 512B EE 1K SRAM ADC |
| 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-32 | TQFP-32 | TQFP-32 |
| Series | ATmega8 | ATmega8 | ATmega8 |
| 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 | 8 kB | 8 kB | 8 kB |
| Data RAM Size | 1 kB | 1 kB | 1 kB |
| Number of I/Os | 23 I/O | 23 I/O | 23 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 | 0 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 70 C |
| Packaging | Tray | Reel | - |
| Height | 1 mm | 1 mm | 1 mm |
| Length | 7 mm | 7 mm | 7 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 7 mm | 7 mm | 7 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 512 B | 512 B | 512 B |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | SPI, TWI, USART | 2-Wire, SPI, USART | 2-Wire, SPI, USART |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of Timers/Counters | 3 Timer | 3 Timer | 1 Timer |
| Processor Series | megaAVR | megaAVR | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 250 | 2000 | 250 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Tradename | AVR | AVR | AVR |
| Unit Weight | 0.002568 oz | 0.002568 oz | 0.002568 oz |
| ADC Resolution | - | 10 bit | - |
| Number of ADC Channels | - | 8 | - |