32-bit ARM Cortex M3 RISC microcontroller featuring a 512KB Flash program memory and 96KB RAM. Operates at a maximum clock rate of 84 MHz with a 32-bit data bus. Offers extensive connectivity including CAN, I2C, I2S, SPI, UART, USART, and USB interfaces. Packaged in a 100-pin LQFP (Low Profile Quad Flat Package) with a 0.5mm pin pitch, suitable for surface mounting. Supports a wide operating voltage range and operates between -40°C and 85°C. Includes 16 ADC channels and 2 DAC channels with 12-bit resolution.
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Microchip ATSAM3A8CA-AU technical specifications.
| Basic Package Type | Lead-Frame SMT |
| Package Family Name | QFP |
| Package/Case | LQFP |
| Package Description | Low Profile Quad Flat Package |
| Lead Shape | Gull-wing |
| Pin Count | 100 |
| PCB | 100 |
| Package Length (mm) | 14 |
| Package Width (mm) | 14 |
| Package Height (mm) | 1.4 |
| Seated Plane Height (mm) | 1.6(Max) |
| Pin Pitch (mm) | 0.5 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MS-026BED |
| Family Name | SAM3A |
| Data Bus Width | 32bit |
| Instruction Set Architecture | RISC |
| Maximum Clock Rate | 84MHz |
| Maximum CPU Frequency | 84MHz |
| Device Core | ARM Cortex M3 |
| Program Memory Type | Flash |
| Program Memory Size | 512KB |
| RAM Size | 96KB |
| Number of Programmable I/Os | 63 |
| Core Architecture | ARM |
| Programmability | Yes |
| Number of Timers | 1 |
| Interface Type | CAN/I2C/I2S/SPI/UART/USART/USB |
| CAN | 2 |
| I2C | 2 |
| SPI | 4 |
| Ethernet | 0 |
| UART | 4 |
| USART | 4 |
| USB | 1 |
| I2S | 1 |
| Max Operating Supply Voltage | 3.6V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 85°C |
| ADC Channels | 16 |
| Number of ADCs | Single |
| DAC Channels | 2 |
| DAC Resolution | 12bit |
| Number of DACs | Single |
| Cage Code | 60991 |
| EU RoHS | Yes |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| ECCN | 3A991.a.2 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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