Silabs EFM32WG低功耗32位ARM MCU解决方案

Silabs公司的EFM32WG是低功耗高性能32位ARM Cortex-M4 CPU平台,频率高达48MHz,支持DSP指令和浮点单元,具有创新低功耗技术,从节能模式叫醒时间短,广泛的外设选择,工作电压1.98V-3.8V,主要用在电,气,水和智能表,健身和健康应用,智能附件,告警和安全系统,工业和家庭自动化.本文介绍了EFM32WG主要特性,框图,评估板EFM32WG-STK3800主要特性,硬件布局图,框图,主要特性和电路图.
The EFM32 MCUs are the world’s most energy friendly microcontrollers. With a unique combination ofthe powerful 32-bit ARM Cortex-M4, with DSP instruction support and floating-point unit, innovative lowenergy techniques, short wake-up time from energy saving modes, and a wide selection of peripherals,the EFM32WG microcontroller is well suited for any battery operated application as well as other systemsrequiring high performance and low-energy consumption. This section gives a short introduction to each of the modules in general terms and also shows a summary of the configuration for the EFM32WG230devices. For a complete feature set and in-depth information on the modules, the reader is referred tothe EFM32WG Reference Manual.
EFM32WG主要特性:
• ARM Cortex-M4 CPU platform
• High Performance 32-bit processor @ up to 48 MHz
• DSP instruction support and floating-point unit
• Memory Protection Unit
• Flexible Energy Management System
• 20 nA @ 3 V Shutoff Mode
• 0.4 μA @ 3 V Shutoff Mode with RTC
• 0.65 μA @ 3 V Stop Mode, including Power-on Reset, Brown-outDetector, RAM and CPU retention
• 0.95 μA @ 3 V Deep Sleep Mode, including RTC with 32.768 kHzoscillator, Power-on Reset, Brown-out Detector, RAM and CPUretention
• 63 μA/MHz @ 3 V Sleep Mode
• 225 μA/MHz @ 3 V Run Mode, with code executed from flash
• 256/128/64 KB Flash
• 32 KB RAM
• 56 General Purpose I/O pins
• Configurable push-pull, open-drain, pull-up/down, input filter, drivestrength
• Configurable peri...