8-bit AVR microcontroller featuring 256KB FLASH memory and 16KB RAM. Operates at up to 32MHz with a 1.6V to 3.6V supply voltage range. Offers 50 I/Os, 22 PWM channels, 7 timers/counters, and multiple communication interfaces including I2C, SPI, UART, and USART. Packaged in a 64-pin QFN (9.1mm x 9.1mm x 0.95mm) for surface mounting. Includes integrated peripherals like DMA, Brown-out Detect, POR, and WDT.
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Microchip ATXMEGA256A3-MH technical specifications.
| Package/Case | QFN |
| Core Architecture | AVR |
| Frequency | 32MHz |
| Height | 0.95mm |
| Interface | I2C, SPI, IrDA, UART, USART |
| Lead Free | Lead Free |
| Length | 9.1mm |
| Max Frequency | 32MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Min Supply Voltage | 1.6V |
| Mount | Surface Mount |
| Number of ADC Channels | 8 |
| Number of I/Os | 50 |
| Number of I2C Channels | 2 |
| Number of PWM Channels | 22 |
| Number of SPI Channels | 3 |
| Number of Timers/Counters | 7 |
| Oscillator Type | Internal |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| Radiation Hardening | No |
| RAM Size | 16KB |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Series | AVR® XMEGA® A3 |
| Watchdog Timer | Yes |
| Width | 9.1mm |
| RoHS | Compliant |
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