32-bit ARM Cortex-M3 microcontroller featuring 128KB FLASH and 32KB RAM. Operates at up to 64MHz with a 1.62V to 3.6V supply voltage. Offers extensive connectivity including SPI, UART, I2C, and USB interfaces, alongside 34 programmable I/Os. Includes 8 ADC channels, 4 PWM channels, and 6 timers/counters. Packaged in a 48-pin QFP for surface mounting.
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Microchip ATSAM3S2AA-AU technical specifications.
| Address Bus Width | 32b |
| Package/Case | QFP |
| Core Architecture | ARM |
| Data Bus Width | 32b |
| Frequency | 64MHz |
| Height | 1.45mm |
| Interface | SPI, UART, 2-Wire, I2C, USB, MMC, USART |
| Lead Free | Lead Free |
| Length | 7mm |
| Max Frequency | 64MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 128KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 1.62V |
| Mount | Surface Mount |
| Number of ADC Channels | 8 |
| Number of I/Os | 34 |
| Number of I2C Channels | 2 |
| Number of Programmable I/O | 34 |
| Number of PWM Channels | 4 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 6 |
| Number of UART Channels | 2 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 250 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| RAM Size | 32KB |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Series | SAM3S |
| Watchdog Timer | Yes |
| Width | 7mm |
| RoHS | Compliant |
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