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CH573 采用32位RISC-V3A内核,最高60MHz系统主频,支持RV32 IMAC指令集,支持硬件乘法和除法,片上集成BLE模块、全速USB主从控制器、SPI、4个串口、ADC、触摸按键检测模块、RTC等丰富的外设资源。

内置18K SRAM,512K Flash ROM,支持ICP、ISP和IAP,集成2.4GHz RF收发器和基带及链路控制,提高优化的协议栈和应用层API,支持组网,支持OAT无线升级

提供4组26位定时器,支持捕捉/采样,支持4路26位PWM输出,支持6路8位PWM输出,提供8通道12位ADC模数转换器,支持8通道触摸按键

提供20个GPIO,其中4个支持5V信号输入,所有GPIO支持中断和唤醒功能,内置温度传感器, 内置电池电压低压监控,支持3.3V和2.5V电源,0dBm发送功率时电流为3mA,多种低功耗模式:Idle,Halt, Sleep, Shutdowm,最低电流0.3uA

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关键特性

  • SPI x 2 + UART x 4 (16C550/6Mbps)
  • BLE 4.2 (RX-96dBm,TX+5dBm)
  • USB H/D
  • 内置实时时钟RTC,支持定时和触发两种模式
  • 支持2.1V~3.6V, 内置DC/DC转换
  • 2 组端口PA和PB,22 x GPIO

CH573 是一款非常具有性价比的BLE SoC产品,可以应用于需要无线通信和USB通信的领域。

  • QFN28 (4*4mm)
  • QFN32 (4*4mm)

CH571 基于 CH573 简化,去掉了 USB host 主机和触摸按键检测模块、8 位 PWM 模块和两个串口,FlashROM 总容量仅 256KB,ADC 不支持 DMA,只支持 2.3V 以上电源电压。

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