| 参数 | 
               数值 | 
            
                          
                 | 系列 | 
                 89C | 
              
                          
                 | 核心处理器 | 
                 8051 | 
              
                          
                 | 芯体尺寸 | 
                 8-Bit | 
              
                          
                 | 速度 | 
                 24MHz | 
              
                          
                 | RAM容量 | 
                 256 x 8 | 
              
                          
                 | 程序存储器类型 | 
                 FLASH | 
              
                          
                 | 程序存储器容量 | 
                 20KB (20K x 8) | 
              
                          
                 | 输入/输出数 | 
                 32 | 
              
                          
                 | 振荡器型 | 
                 Internal | 
              
                          
                 | 连通性 | 
                 UART/USART | 
              
                          
                 | 工作电压 | 
                 4.5 V ~ 5.5 V | 
              
                          
                 | 工作温度 | 
                 0°C ~ 70°C | 
              
                          
                 | 周边设备 | 
                 WDT | 
              
              
           
        
         
       
                         
           
              
                       Low-power, high-performance CMOS 8-bit microcontroller with 20KB of flash programmable ROM and 256 bytes of RAM. The device is manufactured using Atmel high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. On-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. This versatile 8-bit CPU with flash is a highly flexible and cost-effective solution for many embedded control applications.