| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATXMEGA256D3-MHR | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATXMEGA256A3-AUR | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b; D/A 2x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATXMEGA256A3B-MHR | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 49 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b; D/A 2x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATXMEGA256A3B-AUR | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 49 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b; D/A 2x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATXMEGA256D3-AU | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATXMEGA256A3-MHR | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b; D/A 2x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATXMEGA256A3-AU | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b; D/A 2x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATXMEGA256A3-MH | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b; D/A 2x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATXMEGA256D3-MH | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATXMEGA256D3-AUR | ATMEL CORP | AVR | 8/16-Bit | 32MHz | I²C, IrDA, SPI, UART/USART | 50 | 256KB (128K x 16) | FLASH | 4K x 8 | 16K x 8 | 1.6 V ~ 3.6 V | A/D 16x12b | Internal | -40°C ~ 85°C | 64-TQFP |
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