| Part Number | ATXMEGA128A3U-MNR | ATXMEGA128A4U-MNR |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers |
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| Product Status | Active | Active |
| Core Processor | AVR | AVR |
| Core Size | 8/16-Bit | 8/16-Bit |
| Speed | 32MHz | 32MHz |
| Connectivity | I²C, IrDA, SPI, UART/USART, USB | I²C, IrDA, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O | 50 | 34 |
| Program Memory Size | 128KB (64K x 16) | 128KB (64K x 16) |
| Program Memory Type | Flash | Flash |
| EEPROM Size | 2K x 8 | 2K x 8 |
| RAM Size | 8K x 8 | 8K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.6V ~ 3.6V | 1.6V ~ 3.6V |
| Data Converters | A/D 16x12b; D/A 2x12b | A/D 12x12b; D/A 2x12b |
| Oscillator Type | Internal | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) | 0°C ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 64-VFQFN Exposed Pad | 44-VFQFN Exposed Pad |
| Supplier Device Package | 64-QFN (9x9) | 44-VQFN (7x7) |