[原创] ST STM32L072xx超低功耗MCU开发方案B－L072Z－LRWAN1

ST公司的STM32L072xx系列是超低功耗MCU,具有USB 2.0连接功能和高性能
ARM® Cortex®-M0+ 32位RISC核,工作频率32MHz,存储器保护单元(MPU),高速嵌入存储器(高达192KB闪存可编存储器,6KB数据EEPROM和20KB RAM)以及增强的I/O和外设. 工作电压1.8-3.6 V,工作温度-40 到+125 °C,主要用在气/水表和工业传感器,健康和健身设备,遥控和用户接口,PC外设,游戏和GPS设备以及告警系统,有线和无线传感器与视频连接.本文介绍了STM32L072xx系列主要特性,框图,以及评估板B-L072Z-LRWAN1 LoRa®Discovery主要特性,框图,电路图,材料清单和PCB设计图.

The ultra-low-power STM32L072xx microcontrollers incorporate the connectivity power of the universal serial bus (USB 2.0 crystal-less) with the high-performance ARM® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (up to 192 Kbytes of Flash program memory, 6 Kbytes of data EEPROM and 20 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.

The STM32L072xx devices provide high power efficiency for a wide range of performance. It is achieved with a large choice of internal and external clock sources, an internal voltage adaptation and several low-power modes.
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