[原创] ST STM32L4R9I高性能超低功耗ARM MCU开发方案

ST公司的STM32L4R9I是高性能超低功耗MCU系列产品,基于Arm® Cortex®-M4 32位RISC核,工作频率高达120MHz,支持所有ARM单精度数据处理指令和所有数据类型,并能实现全套的DSP指令和存储器保护单元(MPU),使得应用更加安全.电源电压1.7V-3.6V,关断模式33 nA,工作温度-40℃ 到 85/125℃,主要用在健康手环,智能手表,小型医疗设备,智能表计和智能工业传感器等各种产品的中央控制器.本文介绍了STM32L4R9I主要特性,框图和时钟树,以及评估板STM32L4R9I-EVAL主要特性,框图,电路图,材料清单和PCB主要元件分布图.

The STM32L4R5xx, STM32L4R7xx and STM32L4R9xx devices are an ultra-low-power microcontrollers family (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) which enhances the application’s security.
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