ST STM32L4P5AG超低功耗ARM MCU开发方案

ST公司的STM32L4P5xx系列是超低功耗微控制器,基于高性能Arm®Cortex®-M4 32位RISC核,工作频率高达120MHz.Cortex-M4核具有单精度浮点单元(FPU),支持所有ARM单精度数据处理指令和所有数据类型.Cortex-M4核还执行全套的DSP指令和存储器保护单元(MPU),从而增强应用安全性.器件嵌入了高速存储器(高达1MB闪存和320KB SRAM),用于静态存储器的灵活外接存储器控制器(FSMC),两个OCTOSPI闪存接口和连接到两个APB总线,两个AHB总线和32为多个AHB总线矩阵的广泛的增强I/O和外接.器件具有标准和高档通信接口包括四个I2C,三个SPI,三个SPI,三个USART,两个UART和一个低功耗UART,两个SAI,两个SDMMC,一个CAN,一个USB OTG全速,照相接口和同步并行数据接口(PSSI).器件工作温度 -40到 +85℃和 -40 到+125℃,工作电压1.71V到3.6V.主要用在各种低功耗应用领域.中电网为您整理如下详细资料，本文介绍了STM32L4P5AG主要特性,框图,电源框图和时钟树,以及开发板Discovery kit STM32L4P5G-DK主要特性,电路图,材料清单和PCB设计图.
STM32L4P5xx designates a family of ultra-low-power microcontroller devices (part of STM32L4+ Series) based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 120 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. The Cortex-M4 core also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) that enhances the application’s security.
These devices embed high-speed memories (up to 1 Mbyte of Flash memory and 320 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), two OCTOSPI Flash memory interfaces (for devices with packages of 100 pins or more) 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.
These devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readou...