32-bit AVR microcontroller featuring 256KB FLASH memory and 32KB RAM. Operates at up to 60MHz with a 3.3V supply voltage, ranging from 1.65V to 3.6V. Offers 44 programmable I/Os and multiple interfaces including SPI, USART, I2C, and USB. Includes peripherals like Brown-out Detect, POR, PWM, WDT, and DMA. Packaged in a 64-TQFP for surface mounting, with tin-matte contact plating.
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Microchip AT32UC3B0256-A2UR technical specifications.
| Package/Case | TQFP |
| Contact Plating | Tin, Matte |
| Core Architecture | AVR |
| Data Bus Width | 32b |
| Frequency | 60MHz |
| Interface | SPI, USART, 2-Wire, I2C, USB, IrDA, UART, I2S |
| Max Frequency | 60MHz |
| 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 | 44 |
| Number of Programmable I/O | 44 |
| Number of Timers/Counters | 3 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 1500 |
| Packaging | Tape and Reel |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| RAM Size | 32KB |
| RoHS Compliant | Yes |
| Series | UC3 B |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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