32-bit AVR microcontroller featuring 256KB FLASH memory and 128KB RAM. Operates at up to 66MHz with a 3.3V supply voltage (1.65V to 3.6V range). Offers 110 programmable I/Os and extensive interfaces including SPI, I2C, USART, USB, and EBI/EMI. Packaged in a 144-pin LQFP (1.6mm height, 20.1mm length/width) for surface mounting. Includes peripherals like WDT, DMA, and 8 ADC channels.
Frequency66MHz
PackageLQFP
MountingSurface Mount
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Technical Specifications
Microchip AT32UC3A3256-ALUT technical specifications.
General
| Package/Case | LQFP |
| Contact Plating | Tin, Matte |
| Core Architecture | AVR |
| Data Bus Width | 32b |
| Density | 256KB |
| Frequency | 66MHz |
| Height | 1.6mm |
| Interface | SPI, I2S, USART, 2-Wire, I2C, USB, IrDA, UART, EBI/EMI, RS-485, SCI |
| Lead Free | Lead Free |
| Length | 20.1mm |
| 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 ADC Channels | 8 |
| Number of Bits | 32 |
| Number of I/Os | 110 |
| Number of I2C Channels | 2 |
| Number of Programmable I/O | 110 |
| Number of PWM Channels | 2 |
| Number of SPI Channels | 2 |
| Number of Timers/Counters | 6 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 300 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, WDT, DMA |
| Radiation Hardening | No |
| RAM Size | 128KB |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Series | UC3 A3/A4 |
| Termination | SMD/SMT |
| Watchdog Timer | Yes |
| Weight | 0.045518oz |
| Width | 20.1mm |
Compliance
| RoHS | Compliant |
Datasheet
Microchip AT32UC3A3256-ALUT Datasheet
Download the complete datasheet for Microchip AT32UC3A3256-ALUT to view detailed technical specifications.
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