32-bit AVR microcontroller featuring 256KB FLASH and 96KB RAM. Operates at up to 66MHz with a 3V to 3.6V supply voltage. Offers 110 I/Os and supports SPI, I2S, USART, I2C, USB, and UART interfaces. Packaged in a 144-pin LQFP with tin, matte contact plating for surface mounting. Includes peripherals like Brown-out Detect, POR, and a Watchdog Timer.
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| Package/Case | LQFP |
| Contact Plating | Tin, Matte |
| Core Architecture | AVR |
| Data Bus Width | 32b |
| Frequency | 66MHz |
| Interface | SPI, I2S, USART, 2-Wire, I2C, USB, IrDA, UART, EBI/EMI, SCI |
| Lead Free | Lead Free |
| Max Frequency | 66MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Min Supply Voltage | 3V |
| Mount | Surface Mount |
| Number of I/Os | 110 |
| Number of Timers/Counters | 3 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 300 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, WDT, DMA |
| RAM Size | 96KB |
| RoHS Compliant | Yes |
| Series | AVR®32 UC3 A3 |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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