| Part Numbers | Manufacturer Name | Datasheet | Core Processor | Core Size | Speed | Connectivity | RAM Size | Number of I/O | Program Memory Size | Program Memory Type | EEPROM Size | Voltage - Supply (Vcc/Vdd) | Data Converters | Oscillator Type | Operating Temperature | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATMEGA328P-MU | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-VFQFN Exposed Pad | |
| ATMEGA328P-AU | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA328P-PU | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 6x10b | Internal | -40°C ~ 85°C | 28-DIP (0.300, 7.62mm) | |
| ATTINY84V-10MU | ATMEL CORP | AVR | 8-Bit | 10MHz | USI | 12 | 8KB (4K x 16) | FLASH | 512 x 8 | 512 x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 20-WFQFN Exposed Pad | |
| ATTINY84-20PU | ATMEL CORP | AVR | 8-Bit | 20MHz | USI | 12 | 8KB (4K x 16) | FLASH | 512 x 8 | 512 x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 14-DIP (0.300, 7.62mm) | |
| ATTINY861V-10MU | ATMEL CORP | AVR | 8-Bit | 10MHz | USI | 16 | 8KB (4K x 16) | FLASH | 512 x 8 | 512 x 8 | 1.8 V ~ 5.5 V | A/D 11x10b | Internal | -40°C ~ 85°C | 32-VFQFN Exposed Pad | |
| ATTINY861-20SU | ATMEL CORP | AVR | 8-Bit | 20MHz | USI | 16 | 8KB (4K x 16) | FLASH | 512 x 8 | 512 x 8 | 2.7 V ~ 5.5 V | A/D 11x10b | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| ATTINY26L-8PU | ATMEL CORP | AVR | 8-Bit | 8MHz | USI | 16 | 2KB (1K x 16) | FLASH | 128 x 8 | 128 x 8 | 2.7 V ~ 5.5 V | A/D 11x10b | Internal | -40°C ~ 85°C | 20-DIP (0.300, 7.62mm) | |
| ATTINY26-16PU | ATMEL CORP | AVR | 8-Bit | 16MHz | USI | 16 | 2KB (1K x 16) | FLASH | 128 x 8 | 128 x 8 | 4.5 V ~ 5.5 V | A/D 11x10b | Internal | -40°C ~ 85°C | 20-DIP (0.300, 7.62mm) | |
| ATMEGA32U4-AUR | ATMEL CORP | AVR | 8-Bit | 16MHz | I²C, SPI, UART/USART, USB | 26 | 32KB (16K x 16) | FLASH | 1K x 8 | 2.5K x 8 | 2.7 V ~ 5.5 V | A/D 12x10b | Internal | -40°C ~ 85°C | 44-TQFP |
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