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CH552

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简介

CH552 兼容MCS51的增强型E8051内核，79%指令是单字节单周期指令，2KB BootLoader + 14KB Flash，1K xRAM(支持DMA) +256B iRAM，128B DataFlash。

内置24MHz时钟源和PLL，内置了ADC模数转换、触摸按键电容检测、3组定时器和信号捕捉及PWM、双异步串口、SPI、USB设备控制器和全速收发器、USB type-C等功能模块。

关键特性

  • 5V->3.3V LDO
  • 2KB BootLoader，支持USB和串口ISP
  • Type-C 主从检测
  • USB device fs
  • UART x 2 + SPI x 1
  • 小封装 (TSSOP20/SOP16/MSOP10/QFN16)

资源收录

选型建议

CH552 在8051领域拥有较高的声望，低阶高性价比USB单片机。

所属同系列中CH554 增加支持USB HOST主机模式。CH551的ROM降为10K，片内xRAM为512字节，异步串口仅提供UART0，仅SOP16封装，并且去掉了ADC模数转换模块和USB type-C模块。

相较STM8S003 及 N76E003 系列产品，CH552缺少IIC硬件，ADC较弱，没有专门的 eeprom存储器。TSSOP20封装不兼容前两者，无法直接替换。

ch552g's People

Contributors

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