目录
1 订购信息..................................................................................5
2 概述.........................................................................................6
2.1 系统特性.......................................................................... 6
4.3.6
4.3.7
通信接口............................................................39
人机接口(HMI)...................................................42
4.4 引脚配置.......................................................................... 42
4.5 封装尺寸.......................................................................... 45
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
ARM Cortex-M4 内核........................................ 7
NVIC..................................................................7
AWIC.................................................................7
存储器............................................................... 8
复位和引导........................................................ 8
时钟选项............................................................9
安全加密............................................................12
电源管理............................................................13
LLWU................................................................ 14
5 电气特性..................................................................................51
5.1 术语和准则.......................................................................51
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
定义...................................................................51
示例...................................................................52
典型值条件........................................................ 52
极限与工作要求的关系...................................... 53
极限和工作要求准则..........................................53
5.2 极限参数.......................................................................... 53
2.1.10 调试控制器........................................................ 16
2.1.11 计算机正常运行(COP)看门狗定时器................. 16
2.2 外设特性.......................................................................... 16
5.2.1
5.2.2
5.2.3
5.2.4
热处理极限........................................................ 54
湿度处理极限.....................................................54
ESD 处理极限....................................................54
电压和电流工作极限..........................................54
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
eDMA 和 DMAMUX...........................................16
TPM...................................................................17
ADC...................................................................17
DAC...................................................................18
CMP.................................................................. 18
RTC...................................................................19
PIT.....................................................................19
PDB...................................................................19
LPTMR..............................................................20
5.3 综述................................................................................. 55
5.3.1
5.3.2
5.3.3
5.3.4
交流电气特性.....................................................55
静态电气规格.....................................................55
开关规格............................................................66
热学特性............................................................68
5.4 外设工作要求与特性........................................................ 69
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.4.6
5.4.7
5.4.8
调试模块............................................................69
系统模块............................................................73
时钟模块............................................................73
存储器和存储器接口..........................................78
安全性和完整性模块..........................................79
模拟...................................................................80
定时器............................................................... 89
通信接口............................................................89
2.2.10 CRC.................................................................. 20
2.2.11 UART................................................................ 21
2.2.12 LPUART............................................................21
2.2.13 SPI.................................................................... 22
2.2.14 FlexCAN............................................................22
2.2.15 LPI2C................................................................ 23
2.2.16 USB...................................................................24
2.2.17 I2S.....................................................................24
2.2.18 FlexIO................................................................25
2.2.19 端口控制和 GPIO.............................................. 25
3 存储器映射.............................................................................. 27
4 引脚配置..................................................................................27
4.1 信号复用和引脚分配........................................................ 28
4.2 引脚属性.......................................................................... 31
4.3 模块信号说明表............................................................... 36
6 设计考虑因素...........................................................................99
6.1 硬件设计考虑因素............................................................99
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
印刷电路板注意事项..........................................99
功率输出系统.....................................................100
模拟设计............................................................100
数字设计............................................................101
晶体振荡器........................................................ 103
6.2 软件考虑因素................................................................... 105
7 器件标识..................................................................................105
7.1 说明................................................................................. 105
7.2 格式................................................................................. 106
7.3 字段................................................................................. 106
7.4 示例................................................................................. 106
8 修订历史记录...........................................................................107
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
内核模块............................................................36
系统模块............................................................36
时钟模块............................................................37
模拟...................................................................37
定时器模块........................................................ 38
4
KS22/KS20 Microcontroller, Rev 3, 04/2016
NXP Semiconductor, Inc.
NXP [ NXP ]
