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| Part Number | ATSAM3S4AA-MU | ATSAM3S4BA-MU | ATSAM3S4AA-MUR | ATSAM3N4AA-MU | ATSAM3S1AA-MU | ATSAM3S2AA-MU | ATSAM3S4AA-AU |
|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Atmel | Atmel | Microchip Technology | Microchip Technology |
| Product Status | Active | Active | Active | Obsolete | Obsolete | Active | Active |
| Core Processor | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 64MHz | 64MHz | 64MHz | 48MHz | 64MHz | 64MHz | 64MHz |
| Connectivity | I²C, MMC, SPI, SSC, UART/USART, USB | I²C, MMC, SPI, SSC, UART/USART, USB | I²C, MMC, SPI, SSC, UART/USART, USB | I²C, IrDA, SPI, UART/USART | I²C, MMC, SPI, SSC, UART/USART, USB | I²C, MMC, SPI, SSC, UART/USART, USB | I²C, MMC, SPI, SSC, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 34 | 47 | 34 | 34 | 34 | 34 | 34 |
| Program Memory Size | 256KB (256K x 8) | 256KB (256K x 8) | 256KB (256K x 8) | 256KB (256K x 8) | 64KB (64K x 8) | 128KB (128K x 8) | 256KB (256K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - | - | - | - |
| RAM Size | 48K x 8 | 48K x 8 | 48K x 8 | 24K x 8 | 16K x 8 | 32K x 8 | 48K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V |
| Data Converters | A/D 8x10/12b | A/D 10x10/12b; D/A 2x12b | A/D 8x10/12b | A/D 8x10b | A/D 8x10/12b | A/D 8x10/12b | A/D 8x10/12b |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 48-VFQFN Exposed Pad | 64-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 48-LQFP |
| Supplier Device Package | 48-QFN (7x7) | 64-QFN (9x9) | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) | 48-LQFP (7x7) |
