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| PartNumber | ATSAM3N4AA-AU | ATSAM3N4AA-MU | ATSAM3N4B-AU |
| Description | ARM Microcontrollers - MCU IND TEMP MRLA | ARM Microcontrollers - MCU IND TEMP MRLA | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-48 | QFN-48 | - |
| Series | SAM3N | SAM3N | - |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 48 MHz | 48 MHz | - |
| Program Memory Size | 256 kB | 256 kB | - |
| Data RAM Size | 24 kB | - | - |
| ADC Resolution | 10 bit | - | - |
| Number of I/Os | 34 I/O | 79 I/O | - |
| Operating Supply Voltage | 1.8 V | 1.8 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Tray | - |
| Program Memory Type | Flash | Flash | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | - | - |
| Data ROM Size | 16 kB | - | - |
| Data ROM Type | ROM | - | - |
| Interface Type | SPI, UART | SPI, UART | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 8 | - | - |
| Number of Timers/Counters | 6 Timer | - | - |
| Processor Series | ARM Cortex | SAM3N | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 250 | 260 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Unit Weight | 0.006409 oz | 0.005309 oz | - |
| I/O Voltage | - | 3.3 V | - |
| Supply Voltage Max | - | 1.95 V | - |
| Supply Voltage Min | - | 1.62 V | - |