32-bit AVR microcontroller featuring a 66MHz core, 256KB FLASH memory, and 64KB RAM. Offers 69 programmable I/Os and supports SPI, USART, I2C, USB, Ethernet, UART, and I2S interfaces. Operates from 1.65V to 3.6V with an internal oscillator and includes peripherals like Brown-out Detect, POR, PWM, and a Watchdog Timer. Packaged in a 100-pin TQFP with tin-matte plating for surface mounting.
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Microchip AT32UC3A1256-AUR technical specifications.
| Package/Case | TQFP |
| Contact Plating | Tin, Matte |
| Core Architecture | AVR |
| Data Bus Width | 32b |
| Frequency | 66MHz |
| Interface | SPI, USART, 2-Wire, I2C, USB, Ethernet, UART, I2S |
| Max Frequency | 66MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 1.65V |
| Mount | Surface Mount |
| Number of I/Os | 69 |
| 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 A1 |
| Watchdog Timer | Yes |
| RoHS | Not Compliant |
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