The AT32UC3A0128AU-ALUT is a 32-bit AVR microcontroller from Microchip, featuring a 66MHz clock speed and operating on a 3.3V supply voltage. It is packaged in a LQFP package and has a memory size of 128KB of FLASH and 32KB of RAM. The device supports various interfaces including I2C, SPI, USB, Ethernet, UART, USART, EBI/EMI, and I2S. It also features a watchdog timer and peripherals such as brown-out detect/reset, power-on reset, PWM, and a watchdog timer. The microcontroller operates over a temperature range of -40 to 85°C.
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| Package/Case | LQFP |
| Core Architecture | AVR |
| Data Bus Width | 32b |
| Interface | I2C, SPI, USB, Ethernet, UART, USART, EBI/EMI, I2S |
| Max Frequency | 66MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 128KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Number of I/Os | 109 |
| Number of Programmable I/O | 5 |
| Number of Timers/Counters | 1 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 300 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| RAM Size | 32KB |
| Series | AVR®32 UC3 A0 Audio |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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