| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATMEGA48-20AU | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 4KB (2K x 16) | FLASH | 256 x 8 | 512 x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA168-20AU | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 16KB (8K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA168P-20AN | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 16KB (8K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 105°C | 32-TQFP | |
| ATMEGA48P-20AUR | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 4KB (2K x 16) | FLASH | 256 x 8 | 512 x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA88P-20AUR | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 8KB (4K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA168P-20AUR | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 16KB (8K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA168P-20ANR | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 16KB (8K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 105°C | 32-TQFP | |
| ATMEGA168P-20AU | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 16KB (8K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA48-20AUR | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 4KB (2K x 16) | FLASH | 256 x 8 | 512 x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP | |
| ATMEGA88-20AUR | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 23 | 8KB (4K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 32-TQFP |
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