| PartNumber | ATSAM3A4CA-CU | ATSAM3A4CA-AU | ATSAM3A8CA-AU |
| Description | ARM Microcontrollers - MCU BGA100,GREEN IND TEMP, MRL A | ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A | ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRLA |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | LFBGA-100 | LQFP-100 | LQFP-100 |
| Series | SAM3A | SAM3A | SAM3A |
| Core | ARM Cortex M3 | ARM Cortex M3 | ARM Cortex M3 |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 84 MHz | 84 MHz | 84 MHz |
| Program Memory Size | 256 kB | 256 kB | 512 kB |
| Data RAM Size | 64 kB | 64 kB | 64 kB |
| ADC Resolution | 12 bit | - | - |
| Number of I/Os | 63 I/O | - | - |
| Operating Supply Voltage | 1.8 V | 1.8 V | 1.8 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tray | Tray | Tray |
| Program Memory Type | Flash | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | - | - |
| Data ROM Size | 16 kB | - | - |
| Data ROM Type | ROM | - | - |
| Interface Type | SPI, USART | - | - |
| I/O Voltage | 3.3 V | 3.3 V | 3.3 V |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of ADC Channels | 16 | - | - |
| Processor Series | ARM Cortex | SAM3A | SAM3A |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 260 | 90 | 90 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 1.95 V | 1.95 V | 1.95 V |
| Supply Voltage Min | 1.62 V | 1.62 V | 1.62 V |
| Unit Weight | - | 0.046530 oz | 0.046530 oz |