[原创] Freescale KL2x系列超低功耗MCU开发方案

Freescale公司的Kinetis KL2x系列是带有USB OTG的超低功耗MCU,工作频率48MHz,采用ARM® Cortex®-M0+ MCU,集成了模拟,通信,定时和控制外设和USB 2.0 OTG控制器,存储器包括64B闪存缓存的多达256K闪存和多达32K的RAM以及16K RAM.主要用在电池为能源的应用,消费类电子,低功耗应用和US外设.本文介绍了KL2x系列主要特性,框图和开发平台FRDM-KL26Z主要特性,框图,电路图和材料清单.

The Kinetis KL2x family of ARM® Cortex®-M0+ MCUs combine ultra-low-power performance with a rich suite of analog, communication, timing and control peripherals, including a USB 2.0 On-the-Go controller. Family members start from 32 KB of flash in a small 5 x 5 mm 32 QFN package, extending up to 256 KB in a 121 MBGA package. The KL2x MCU family is compatible with the ARM Cortex-M4 based Kinetis K20 MCU family, offering a migration path to higher performance and feature integration.

KL2x系列主要特性:

Ultra-Low-Power
• Next-generation 32-bit ARM Cortex-M0+ core. Two times more CoreMark/mA than the closest 8/16-bit architecture. Single-cycle fast I/O access port facilitates bit banging and software protocol emulation, maintaining an 8-bit ‘look and feel’.
• Multiple flexible low-power modes, including new compute mode which reduces dynamic power by placing peripherals in an asynchronous stop mode..

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