| PartNumber | ATXMEGA128B3-AUR | ATXMEGA128B3-AN | ATXMEGA128B3-ANR |
| Description | 8-bit Microcontrollers - MCU 64TQFP,IND TEMP GREEN,1.6-3.6V,T&R | 8-bit Microcontrollers - MCU TQFP, 105C, Green 1.6-3.6V | 8-bit Microcontrollers - MCU TQFP, 105C, Green 1.6-3.6V T&R |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TQFP-64 | - | - |
| Series | XMEGA B3 | XMEGA B3 | XMEGA B3 |
| Core | AVR | - | - |
| Data Bus Width | 8 bit/16 bit | - | - |
| Maximum Clock Frequency | 32 MHz | - | - |
| Program Memory Size | 128 kB | - | - |
| Data RAM Size | 8 kB | - | - |
| ADC Resolution | 12 bit | - | - |
| Number of I/Os | 36 I/O | - | - |
| Operating Supply Voltage | 1.6 V to 3.6 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Reel | Tray | Reel |
| Product | MCU | - | - |
| Program Memory Type | Flash | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | - | - |
| Data ROM Size | 2 kB | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | SPI, USART, USB | - | - |
| Analog Supply Voltage | 1.6 V to 3.6 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 8 Channel | - | - |
| Number of Timers/Counters | 2 x 16 bit | - | - |
| Processor Series | AVR XMEGA | - | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 1000 | 90 | 1000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | - | - |
| Supply Voltage Min | 1.6 V | - | - |
| Tradename | XMEGA | XMEGA | XMEGA |
| Watchdog Timers | Watchdog Timer | - | - |