| 参数 | 
               数值 | 
            
                          
                 | CPU | 
                 ARM7TDMI | 
              
                          
                 | Output Compare channels | 
                 3 | 
              
                          
                 | Hardware QTouch Acquisition | 
                 No | 
              
                          
                 | Pin Count | 
                 48 | 
              
                          
                 | Camera Interface | 
                 No | 
              
                          
                 | Graphic LCD | 
                 No | 
              
                          
                 | Max. Operating Frequency | 
                 55 MHz | 
              
                          
                 | EEPROM (Bytes) | 
                 0 | 
              
                          
                 | TWI (I2C) | 
                 1 | 
              
                          
                 | MPU / MMU | 
                 no / no | 
              
                          
                 | Calibrated RC Oscillator | 
                 No | 
              
                          
                 | FPU | 
                 No | 
              
                          
                 | Crypto Engine | 
                 No | 
              
                          
                 | SPI | 
                 1 | 
              
                          
                 | Operating Voltage (Vcc) | 
                 3.0 to 3.6 | 
              
                          
                 | Temp. Range (deg C) | 
                 -40 to 85 | 
              
                          
                 | 32kHz RTC | 
                 Yes | 
              
                          
                 | I/O Supply Class | 
                 1.8/3.3 | 
              
                          
                 | Video Decoder | 
                 No | 
              
                          
                 | ADC channels | 
                 8 | 
              
                          
                 | Max I/O Pins | 
                 21 | 
              
                          
                 | Self Program Memory | 
                 NO | 
              
                          
                 | PWM Channels | 
                 4 | 
              
                          
                 | picoPower | 
                 No | 
              
                          
                 | USB Speed | 
                 No | 
              
                          
                 | SSC | 
                 1 | 
              
                          
                 | DAC Channels | 
                 0 | 
              
                          
                 | NAND Interface | 
                 No | 
              
                          
                 | Temp. Sensor | 
                 No | 
              
                          
                 | External Bus Interface | 
                 0 | 
              
                          
                 | Resistive Touch Screen | 
                 No | 
              
                          
                 | DAC Resolution (bits) | 
                 0 | 
              
                          
                 | UART | 
                 2 | 
              
                          
                 | Ext Interrupts | 
                 21 | 
              
                          
                 | Timers | 
                 3 | 
              
                          
                 | ADC Resolution (bits) | 
                 10 | 
              
                          
                 | Flash (Kbytes) | 
                 32 Kbytes | 
              
                          
                 | DRAM Memory | 
                 No | 
              
                          
                 | USB Interface | 
                 No | 
              
                          
                 | SRAM (Kbytes) | 
                 8 | 
              
                          
                 | ADC Speed (ksps) | 
                 384 | 
              
                          
                 | Input Capture Channels | 
                 3 | 
              
                          
                 | 系列 | 
                 AT91SAM | 
              
                          
                 | 核心处理器 | 
                 ARM7 | 
              
                          
                 | 芯体尺寸 | 
                 16/32-Bit | 
              
                          
                 | 速度 | 
                 55MHz | 
              
                          
                 | RAM容量 | 
                 8K x 8 | 
              
                          
                 | 程序存储器类型 | 
                 FLASH | 
              
                          
                 | 程序存储器容量 | 
                 32KB (32K x 8) | 
              
                          
                 | 输入/输出数 | 
                 21 | 
              
                          
                 | 振荡器型 | 
                 Internal | 
              
                          
                 | 数据转换器 | 
                 A/D 8x10b | 
              
                          
                 | 连通性 | 
                 I²C, SPI, SSC, UART/USART | 
              
                          
                 | 工作电压 | 
                 1.65 V ~ 1.95 V | 
              
                          
                 | 工作温度 | 
                 -40°C ~ 85°C | 
              
                          
                 | 周边设备 | 
                 Brown-out Detect/Reset, DMA, POR, PWM, WDT | 
              
              
           
        
         
       
                         
           
              
                       
A member of the Atmel® SAM7S series of flash microcontrollers based on the 32-bit ARM7TDMI® RISC processor. It operates at a maximum speed of 55MHz and features 32KB of flash and 8KB of SRAM. The peripheral set includes UART, USART, TWI, SPI SSC, two PWM timers, three 16-bit timers, RTT, 8x10-bit ADC and 21 IO lines. It achieves single-cycle instruction access from embedded flash at 27 MIPS. The multi-layer bus matrix, multiple SRAM banks, PDC, and DMA support parallel tasks and maximize data throughput. The SAM7S32 operates from 1.65V to 3.6V and is available in 48-pin LQFP and QFN packages.
 
                   
                         
           
                    
                   
           
                                
                     BuildingAutomation: 舒适性与控制, 消防与安全
IndustrialAutomation: PLC 和 I/O 模块, 仪表
Metering: 电表