Arm® Cortex®-M4_Kinetis K20 120 MHz 32位USB MCU

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Kinetis^® K20 120 MHz微控制器系列具有先进的串行通信、模拟集成特性以及可定制的系统扩展，适用于医疗、工业和消费电子设备。

提供一套强大的模拟、通信、定时和控制外设，满足不同的应用需求
以低功耗实现高性能效率
通过智能片上集成显著降低了物料清单(BOM)成本
具备Kinetis系列固有的可扩展性和综合开发支持

数据手册

参考手册

产品详情

框图

Kinetis K2x MCU Family Block Diagram

获取框图PDF

特征

超低功耗

10种低功耗模式，提供电源和时钟门控，可以实现优选的外设活动和恢复时间。停止电流<500 nA、运行电流<200 uA/MHz、停止模式唤醒时间为4 µs
工作电压降至1.71 V时，仍可实现完整的存储器和模拟操作，延长了电池使用时间
低漏电唤醒单元，带有多达8个内置模块和16个引脚，可作为低漏电停止(LLS)模式/超低漏电停止(VLLS)模式的唤醒源
低功耗定时器支持系统在低功耗状态下持续运行

闪存、SRAM和FlexMemory

512 KB - 1 MB闪存。支持快速访问，具备高可靠性，提供4级安全保护
128 KB的SRAM
FlexMemory：32字节 - 16 KB的用户可分段字节写入/擦除EEPROM，适用于数据表/系统数据。可擦写10M次以上的EEPROM和写入时间仅70 µs的闪存(出现电力故障时不会发生数据丢失或损坏)。无需用户或系统干预便可完成编程和擦除功能，工作电压降至1.71V时仍可完全工作。此外，512 KB的FlexNVM还用于额外程序代码、数据或EEPROM备份

混合信号功能

多达4个具有可配置分辨率的高速16位模数转换器(ADC)。单输出或差分输出模式运行，可提高噪声抑制水平。利用可编程延迟模块触发功能可实现500 ns的转换时间
两个12位数模转换器(DAC)，可以为音频应用生成模拟波形
多达4个高速比较器，可通过将脉宽调制(PWM)置于安全状态，提供快速准确的电机过流保护
多达4个64倍增益的可编程增益放大器，适用于小幅度信号转换
模拟参考电压可为模拟模块、ADC和DAC提供精确的参考值，代替外部参考电压，降低系统成本

性能

Arm^{^®} Cortex^®-M4内核 + DSP，120MHz，单周期 MAC，单指令多数据(SIMD)扩展，单精度浮点运算单元
多达32通道的DMA用于外设和存储器维护，可以降低CPU负载，实现更快的系统吞吐
交叉开关支持并发多主设备总线访问，增加总线带宽
高达16 KB的指令/数据缓存，优化总线带宽和闪存执行性能
独立的闪存Bank可以并发执行代码和固件更新，既不会影响性能，也无需复杂的编码例程

定时和控制

多达4个FlexTimer，总计20个通道。硬件死区时间插入和正交解码，用于电机控制
载波调制定时器，用于在遥控应用中生成红外线波形
4通道32位周期中断定时器可为实时操作系统任务调度程序提供时基，还可为ADC转换和可编程延迟模块提供触发源

人机接口

带有多达16路输入的硬件触摸传感接口。可在所有低功耗模式下运行(启用时只增加极小的电流)。通过硬件实现避免了软件轮询方法。高灵敏度，允许使用厚达5毫米厚度的贴膜

数据连接与通信

USB 2.0 OTG (全速和高速)。设备充电检测优化了便携式USB设备的充电电流/时间，延长了电池使用时间。低压稳压器可通过5 V输入为外部组件提供高达120 mA，3.3 V的片外供电
多达6个支持IrDA的UART，其中一个UART有ISO7816智能卡支持。支持各种数据大小、格式和传输/接收设置，满足多种工业通信协议
IC间音频传输(I²S)串行接口，用于接入音频系统
多达两个CAN模块，适用于工业网络桥接
多达3个DSPI和两个I²C

可靠性、功能安全和信息安全

存储器保护单元可为交叉开关上的所有主设备提供存储器保护，提高软件可靠性
循环冗余校验引擎可验证存储器内容和通信数据，提高系统可靠性
时钟独立的COP可防止时钟偏移或代码失控，适用于故障安全型应用(例如，针对家用电器的IEC 60730安全标准)
如果发生看门狗事件，外部看门狗监控器可将输出引脚置于安全状态外部组件

设计资源

设计文件

3 设计文件

^模型
K20 120 MHz and 150 MHz IBIS Model Files

ZIP版本 1.3Dec 3, 2013 00:00:00758.4 KBK20_IBIS

下载
^{符号和尺寸}
Kinetis^® Symbols, Footprints and Models

INTERNAL版本 1.0Nov 27, 2017 11:23:001 KBCAD-SYMBOLFOOTPRINTS

下载
^计算器
TFS FlexMem Endurance Calculator

ZIP版本 vBeta025Aug 1, 2014 00:00:003.2 MBTFS_FLEXMEM_CALCULATOR
请登录

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硬件

1-5 / 10 硬件

^{评估/开发板与系统}
Kinetis K60 120 MHz塔式系统模块亮点

TWR-K60F120M
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Universal Multilink开发接口

UMultilink
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JTAG/SWD硬件调试器

MCU-LINK
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Tracelink - 将跟踪捕捉推向新高度

TRACELINK
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LPC-Link2

OM13054
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Universal Multilink FX高速开发接口

U-MULTILINK-FX
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PEmicro Cyclone FX编程器

CYCLONE-FX
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MCU-Link Pro硬件调试器

MCU-LINK-PRO
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MPC560x校准、调试和接口板

MPC560xBOARDS
^{评估/开发板与系统}
Tower Plug-In (TWRPI) Adaptor Board for Freedom Development Platform

FRDM-TWRPI

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USB Multilink Universal FX

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