| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATUC64L4U-D3HT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 36 | 64KB (64K x 8) | FLASH | - | 16K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| ATUC128L4U-D3HT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 36 | 128KB (128K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| AT32UC3L0128-D3HT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART | 36 | 128KB (128K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| ATUC256L4U-D3HT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 36 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| AT32UC3L0256-D3HT | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART | 36 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| ATUC64L4U-D3HR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 36 | 64KB (64K x 8) | FLASH | - | 16K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| ATUC128L4U-D3HR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 36 | 128KB (128K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| ATUC256L4U-D3HR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 36 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| AT32UC3L0128-D3HR | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART | 36 | 128KB (128K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 9x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad | |
| ATUC256L4U-D3HES | ATMEL CORP | AVR | 32-Bit | 50MHz | I²C, SPI, UART/USART, USB | 36 | 256KB (256K x 8) | FLASH | - | 32K x 8 | 1.62 V ~ 3.6 V | A/D 8x12b | Internal | -40°C ~ 85°C | 48-UFLGA Exposed Pad |
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