| 参数 | 数值 |
|---|---|
| DAC Resolution (bits) | 12 |
| PWM Channels | 4 |
| picoPower | No |
| SSC | 1 |
| Flash (Kbytes) | 128 Kbytes |
| # of Touch Channels | 23 |
| NAND Interface | Yes |
| ADC Speed (ksps) | 1000 |
| External Bus Interface | 0 |
| Resistive Touch Screen | No |
| SPI | 3 |
| CPU | Cortex-M3 |
| Self Program Memory | YES |
| Timers | 3 |
| Max. Operating Frequency | 64 MHz |
| USB Speed | Full Speed |
| DRAM Memory | No |
| USB Interface | Device |
| Temp. Sensor | Yes |
| USB Transceiver | 1 |
| Input Capture Channels | 3 |
| Output Compare channels | 3 |
| Hardware QTouch Acquisition | No |
| Pin Count | 64 |
| Operating Voltage (Vcc) | 1.62 to 3.6 |
| Analog Comparators | 1 |
| SD / eMMC | 1 |
| Camera Interface | No |
| Graphic LCD | No |
| EEPROM (Bytes) | 0 |
| ADC Resolution (bits) | 12 |
| MPU / MMU | Yes / No |
| SRAM (Kbytes) | 32 |
| FPU | No |
| UART | 4 |
| Crypto Engine | No |
| Max I/O Pins | 47 |
| Ext Interrupts | 47 |
| Temp. Range (deg C) | -40 to 85 |
| 32kHz RTC | Yes |
| I/O Supply Class | 1.8/3.3 |
| Video Decoder | No |
| ADC channels | 10 |
| TWI (I2C) | 2 |
| DAC Channels | 2 |
| Quadrature Decoder Channels | 1 |
| Calibrated RC Oscillator | Yes |
| 系列 | SAM3S |
| 核心处理器 | ARM? Cortex-M3? |
| 芯体尺寸 | 32-Bit |
| 速度 | 64MHz |
| RAM容量 | 32K x 8 |
| 程序存储器类型 | FLASH |
| 程序存储器容量 | 128KB (128K x 8) |
| 输入/输出数 | 47 |
| 振荡器型 | Internal |
| 数据转换器 | A/D 10x10/12b, D/A 2x12b |
| 连通性 | I²C, MMC, SPI, SSC, UART/USART, USB |
| 工作电压 | 1.62 V ~ 1.95 V |
| 工作温度 | -40°C ~ 85°C |
| 周边设备 | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
The SAM3S2B is a member of the Atmel® SAM3S series microcontrollers based on the high-performance 32-bit ARM® Cortex™-M3 RISC processor. It operates at a maximum speed of 64MHz and features 128KB of flash and 32KB of SRAM. The extensive peripheral set includes a FS USB Device port with embedded transceiver, a HS multimedia card interface for SDIO/SD/MMC, two USARTs, two UARTs, two TWIs, three SPI, I2S, PWM timer, three 16-bit timers, RTC, 10x12-bit ADC, 2x12-bit DAC and an analog comparator. The SAM3S2B is ready for capacitive touch thanks to the QTouch® library, offering an easy way to implement buttons, wheels and sliders. The parallel data capture mode on the PIOs collects data from external devices not compliant with standard memory read protocols, such as low-cost image sensors. The data is then transferred to memory by DMA offloading the CPU. It operates from 1.62V to 3.6V and is available in 64-pin QFP and QFN packages. The SAM3S2B is pin-to-pin compatible with the SAM3N2B and SAM7S64.
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