ST STM32L476VG 32位超低功耗MCU开发方案

ST公司的STM32L476VG是基于高性能ARM® Cortex®-M4 32位RISC内核的超低功耗MCU,工作频率高达80MHz,100DMIPS性能,Cortex-M4内核具有浮点单源(FPU)单精度,支持多有ARM单精度数据处理指令和数据类型,嵌入高速存储器(高达1MB闪存,高达128KB SRAM),并集成了USB OTG FS, LCD,模拟和音频功能,工作电压1.71V-3.6V.本文介绍了STM32L476VG主要特和框图,以及Discovery探索板32L476GDISCOVERY主要特性,板元件布局图,电路图和材料清单.
Ultra-low-power ARM® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 1MB Flash, 128 KB SRAM, USB OTG FS, LCD, analog, audio
The STM32L476xx devices are the ultra-low-power microcontrollers based on the high-performance ARM® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all ARM single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32L476xx devices embed high-speed memories (Flash memory up to 1 Mbyte, up to 128 Kbyte of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI flash memories interface (available on all packages) 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 STM32L476xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall. The devices offer up to three fast 12-bit ADCs (5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulat...