[原创] Freescale Kinetis KL27超低功耗32位MCU开发方案

Freescale公司的Kinetis KL27是基于ARM® Cortex®-M0+处理器的超低功耗32位MCU,核工作频率48MHz,集成了128/256 KB程序闪存,32KB SRAM和16KB ROM,集成了USB FS 2.0, UART,I2C和16位SPI等外设,工作电压1.71到3.6 V,目标应用位低功耗应用,以电池为动力的应用,USB外设和消费类电子.本文介绍了Kinetis KL27主要特性,框图,Freedom板FRDM-KL27Z主要特性,框图,电路图,材料清单和PCB设计文件.

The USB-enabled Kinetis KL27 device, together with the general purpose KL17 product, extend the Kinetis L series to more than 200 offerings and bring scalable design options to applications such as portable medical devices and remote sensing equipment.

The KL27 series is optimized for cost-sensitive and batterypoweredapplications requiring low-power USB connectivity. Theproduct offers:

• USB FS 2.0 device without requiring an external crystal
• Embedded ROM with boot loader for flexible programupgrade
• High accuracy internal voltage and clock reference
• FlexIO to support any standard and customized serialperipheral emulation
• Down to 54uA/MHz in very low power run mode and1.96uA in deep sleep mode (RAM + RTC retained)

Kinetis KL27主要特性:

Core Processor
• ARMR CortexR-M0+ core up to 48 MHz
Memories..

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