32-bit AVR microcontroller featuring 256KB FLASH and 64KB RAM. Operates at up to 66MHz with a 32-bit data bus. Offers extensive connectivity including SPI, USART, I2C, USB, Ethernet, UART, EBI/EMI, and I2S interfaces. Housed in a 144-pin LQFP package for surface mounting, with 109 I/Os and 69 programmable I/Os. Supports a wide operating voltage range of 1.65V to 3.6V and includes integrated peripherals like POR, PWM, and WDT.
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Microchip AT32UC3A0256-ALUR technical specifications.
| Package/Case | LQFP |
| Contact Plating | Tin, Matte |
| Core Architecture | AVR |
| Data Bus Width | 32b |
| Frequency | 66MHz |
| Interface | SPI, USART, 2-Wire, I2C, USB, Ethernet, UART, EBI/EMI, I2S |
| Max Frequency | 66MHz |
| Max Operating Temperature | 85°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 1.65V |
| Mount | Surface Mount |
| Number of I/Os | 109 |
| Number of Programmable I/O | 69 |
| Number of Timers/Counters | 3 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 1 |
| Packaging | Tape and Reel |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| RAM Size | 64KB |
| RoHS Compliant | No |
| Series | AVR®32 UC3 A0 |
| RoHS | Not Compliant |
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