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| PartNumber | ATXMEGA64A3-AUR | ATXMEGA64A3-AU | ATXMEGA64A3 |
| Description | 8-bit Microcontrollers - MCU 64KB FL 2KB EE 4KB SRAM IND 1.6-3.6V | 8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 64KB + 4KB | |
| Manufacturer | Microchip | Microchip | Atmel |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TQFP-64 | TQFP-64 | - |
| Series | XMEGA A3 | XMEGA A3 | AVRR XMEGAR A3 |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit/16 bit | 8 bit/16 bit | 8 bit/16 bit |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz |
| Program Memory Size | 64 kB | 64 kB | 64KB (32K x 16) |
| Data RAM Size | 4 kB | 4 kB | 4 kB |
| Number of I/Os | 50 I/O | 50 I/O | - |
| Operating Supply Voltage | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Tray | Tray Alternate Packaging |
| Product | MCU | MCU | MCU |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data ROM Size | 2 kB | 2 kB | 2 kB |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 7 Timer | 7 Timer | - |
| Processor Series | AVR XMEGA | AVR XMEGA | AVR XMEGA |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 1000 | 90 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Tradename | XMEGA | XMEGA | XMEGA |
| Unit Weight | 0.012720 oz | 0.012720 oz | 0.012720 oz |
| ADC Resolution | - | 8 bit | 8 bit |
| Height | - | 1 mm | - |
| Length | - | 14 mm | - |
| Program Memory Type | - | Flash | FLASH |
| Width | - | 14 mm | - |
| Data RAM Type | - | SRAM | SRAM |
| Data ROM Type | - | EEPROM | EEPROM |
| Interface Type | - | I2C, SPI, USART | I2C SPI USART |
| Number of ADC Channels | - | 2 | 2 |
| Package Case | - | - | TQFP-64 |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 64-TQFP (14x14) |
| Number of I O | - | - | 50 |
| Speed | - | - | 32MHz |
| EEPROM Size | - | - | 2K x 8 |
| Core Processor | - | - | AVR |
| RAM Size | - | - | 4K x 8 |
| Peripherals | - | - | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | - | - | I2C, IrDA, SPI, UART/USART |
| Voltage Supply Vcc Vdd | - | - | 1.6 V ~ 3.6 V |
| Core Size | - | - | 8/16-Bit |
| Data Converters | - | - | A/D 16x12b; D/A 2x12b |
| Oscillator Type | - | - | Internal |
| Number of I Os | - | - | 50 I/O |
| Number of Timers Counters | - | - | 7 Timer |