| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATUC64L3U-AUT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 64KB (64K x 8) | FLASH | - | 16K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATUC64L3U-Z3UT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 64KB (64K x 8) | FLASH | - | 16K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATUC128L3U-AUT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 128KB (128K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATUC128L3U-Z3UT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 128KB (128K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATUC256L3U-AUT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATUC256L3U-Z3UT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATUC64L3U-Z3UR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 64KB (64K x 8) | FLASH | - | 16K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATUC64L3U-AUR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 64KB (64K x 8) | FLASH | - | 16K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATUC256L3U-AUR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATUC256L3U-Z3UR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 51 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad |
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