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| PartNumber | ATSAM3S2AA-MU | ATSAM3S2AA-MUR | ATSAM3S2AA-MU-ES3 |
| Description | ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp | Microcontrollers - MCU ARM Microcontrollers - MCU QFNGREENIND TEMPMRL A | |
| Manufacturer | Microchip | Atmel | - |
| Product Category | ARM Microcontrollers - MCU | Embedded - Microcontrollers | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | QFN-48 | - | - |
| Series | SAM3S | SAM3S | - |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 64 MHz | 64 MHz | - |
| Program Memory Size | 128 kB | 128KB (128K x 8) | - |
| Data RAM Size | 32 kB | 32 kB | - |
| ADC Resolution | 12 bit | 12 bit | - |
| Number of I/Os | 34 I/O | - | - |
| Operating Supply Voltage | 1.8 V | 1.8 V 3.3 V | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tray | Digi-ReelR Alternate Packaging | - |
| Program Memory Type | Flash | FLASH | - |
| Brand | Microchip Technology / Atmel | - | - |
| Data ROM Size | 16 kB | - | - |
| Interface Type | 2-Wire, RS-485, SPI, UART | I2C SPI UART | - |
| Analog Supply Voltage | 3.3 V | - | - |
| I/O Voltage | 3.3 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 8 | 8 | - |
| Number of Timers/Counters | 6 Timer | - | - |
| Processor Series | AT91SAM3S | ATSAM3x | - |
| Product Type | ARM Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 260 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 1.9 V | - | - |
| Supply Voltage Min | 1.62 V | - | - |
| Unit Weight | 0.005309 oz | 0.005309 oz | - |
| Package Case | - | QFN-48 | - |
| Operating Temperature | - | -40°C ~ 85°C (TA) | - |
| Supplier Device Package | - | 48-QFN (7x7) | - |
| Number of I O | - | 34 | - |
| Speed | - | 64MHz | - |
| EEPROM Size | - | - | - |
| Core Processor | - | ARMR CortexR-M3 | - |
| RAM Size | - | 32K x 8 | - |
| Peripherals | - | Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT | - |
| Connectivity | - | I2C, MMC, SPI, SSC, UART/USART, USB | - |
| Voltage Supply Vcc Vdd | - | 1.62 V ~ 3.6 V | - |
| Core Size | - | 32-Bit | - |
| Data Converters | - | A/D 8x10/12b | - |
| Oscillator Type | - | Internal | - |
| Number of Timers Counters | - | 3 Timer | - |
| Data RAM Type | - | SRAM | - |