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| PartNumber | ATXMEGA128A1-AU | ATXMEGA128A1-AUR | ATXMEGA128A1 |
| Description | 8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 128K + 8K Flash | 8-bit Microcontrollers - MCU IND 3.6V IND TEMP 1.6-3.6V | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TQFP-100 | TQFP-100 | - |
| Series | XMEGA A1 | XMEGA A1 | - |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit/16 bit | 8 bit/16 bit | - |
| Maximum Clock Frequency | 32 MHz | 32 MHz | - |
| Program Memory Size | 128 kB | 128 kB | - |
| Data RAM Size | 8 kB | 8 kB | - |
| ADC Resolution | 12 bit | - | - |
| Number of I/Os | 78 I/O | 78 I/O | - |
| Operating Supply Voltage | 1.6 V to 3.6 V | 1.6 V to 3.6 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Reel | - |
| Height | 1 mm | - | - |
| Length | 14 mm | - | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | - | - |
| Width | 14 mm | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | - | - |
| Data ROM Size | 2 kB | 2 kB | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | SPI, TWI, USART | - | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 8 | - | - |
| Number of Timers/Counters | 8 Timer | 8 Timer | - |
| Processor Series | AVR XMEGA | AVR XMEGA | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 90 | 1500 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Tradename | XMEGA | XMEGA | - |
| Unit Weight | 0.023175 oz | 0.023175 oz | - |