ST STM32L151超低功耗32位MCU开发方案

ST公司的STM32L151xE和STM32L152xE是采用高性能ARM® Cortex®-M3 RISC内核的高性能超低功耗32位MCU,工作频率32 MHz (33.3 DMIPS),集成了USB连接电源,存储器保护单元(MPU),高速嵌入存储器(512KB 闪存和80KB RAM),以及连接到两个APB总线的增强I/O和外设.主要用在医疗和手持设备,应用控制和用户接口,PC外设,游戏,GPS和体育运动设备以及民用计量表.本文介绍了STM32L151xE和STM32L152xE主要特性, 框图和开发板STM32L-DISCOVERY主要特性,框图,电路图,材料清单和PCB设计文件.
The ultra-low-power STM32L151xE and STM32L152xE devices incorporate the connectivity power of the universal serial bus (USB) with the high-performance ARM® Cortex®-M3 32-bit RISC core operating at a frequency of 32 MHz (33.3 DMIPS), a memory protection unit (MPU), high-speed embedded memories (Flash memory up to 512 Kbytes and RAM up to 80 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses.
The STM32L151xE and STM32L152xE devices offer two operational amplifiers, one 12-bit ADC, two DACs, two ultra-low-power comparators, one general-purpose 32-bit timer, six general-purpose 16-bit timers and two basic timers, which can be used as time bases.
Moreover, the STM32L151xE and STM32L152xE devices contain standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2S, three USARTs, two UARTs and an USB. The STM32L151xE and STM32L152xE devices offer up to 34 capacitive sensing channels to simply add a touch sensing functionality to any application.They also include a real-time clock and a set of backup registers that remain powered in Standby mode.
Finally, the integrated LCD controller (except STM32L151xE devices) has a built-in LCD voltage generator that allows to drive up to 8 multiplexed LCDs with the contrast independent of the supply voltage.
The ultra-low-power STM32L151xE and STM32L152xE devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power supply without BOR option. They are avail...