ST STM32G474E 170MHz ARM MCU开发方案

ST公司的STM32G474xB/xC/xE系列产品是基于高性能Arm® Cortex®-M4 32位 RISC核.工作频率高达170MHz. Cortex-M4核有单精度浮点单元(FPU),支持ARM单精度数据处理指令和所有的数据类型.处理器还能实现全套的DSP(数字信号处理)指令和存储器保护单元(MPU),它增强了应用的安全性.该器件嵌入高速存储器(512KB闪存,128KB SRAM),用于静态存储器(100引脚和更多引脚的封装)的灵活的外接存储器控制器(FSMC), Quad SPI闪存接口,连接于两个APB总线,两个AHB总线和32位多个AHB总线矩阵的广泛的增强I/O和外设.器件还嵌入用于嵌入闪存和SRAM的几种保护机制:读出保护,写保护,安全存储器区和专有代码读出保护.器件嵌入外设,允许数学/算法功能加速(用于三角函数的CORDIC和用于滤波器功能的FMAC单元).器件提供不应五个快速12位ADC(5 Msps),七个比较器,六个运算放大器,七个DAC通路(3个外部和4个内部),一个内部电压基准缓冲器,一个低功耗RTC,两个通用32位计时器,用来马达控制的三个16位PWM计时器,七个通用16位计时器,一个16位低功耗计时器和有184ps分辨率的高分辨率计时器.工作电压1.71 V 到3.6 V,工作温度为-40 到+85 C (+105 C 结温) 以及-40 到 +125 C.主要用在数字开关电源和电机驱动等领域.本文介绍了STM32G474xB/xC/xE系列主要特性,电源方案以及评估板STM32G474E-EVAL主要特性,电路图和材料清单.

The STM32G474xB/xC/xE devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 170 MHz. The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm single-precision data-processing instructions and all the data types. It also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the applications security. These devices embed high-speed memories (512 Kbytes of Flash memory, and 128 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI Flash memory interface, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. The devices also e...