MCU选型指南
超低功耗mcu的选型技巧与设计思路
超低功耗mcu的选型技巧与设计思路循序渐进式的功耗优化已经不再是超低功耗mcu的游戏规则，而是突飞猛进模式，与功耗相关的很多指标都不断刷新记录。
我们在选择合适的超低功耗mcu时要掌握必要的技巧，在应用时还需要一些设计方向与思路才能够更好的应用。
一：超低功耗mcu-低功耗mcu的选择方法嵌入式微控制器（mcu）的功耗在当今电池供电应用中正变得越来越举足轻重。
大多mcu 芯片厂商都提供低功耗低功耗产品，但是选择一款最适合您自己应用的产品并非易事，并不像对比数据表前面的数据那么简单。
我们必须详细对比mcu 功能，以便找到功耗最低的产品，这些功能包括：断电模式定时系统事件驱动功能片上外设掉电检测与保护漏电流处理效率。
----在低功耗设计中，平均电流消耗往往决定电池寿命。
例如，如果某个应用采用额定电流为400mAh 的Eveready 高电量9V 1222 型电池的话，要提供一年的电池寿命其平均电流消耗必须低于400mAh/8760h，即45.7uA。
----在使mcu 能够达到电流预算的所有功能中，断电模式最重要。
低功耗mcu 具有可提供不同级别功能的断电模式。
例如，TI 超低功耗mcu MSP430 系列产品可以提供5 种断电模式。
低功耗模式0 （LPM0）会关闭CPU，但是保持其他功能正常运转。
LPM1 与LPM2 模式在禁用功能列表中增加了各种时钟功能。
LPM3 是最常用的低功耗模式，只保持低频率时钟振荡器以及采用该时钟的外设运行。
LPM3 通常称为实时时钟模式，因为它允许定时器采用低功耗32768Hz 时钟源运行，电流消耗低于1uA，同时还可定期激活系统。
最后，LPM4 完全关闭器件上的包括RAM 存储在内的所有功能，电流消耗仅100 毫微安。
----时钟系统是mcu功耗的关键。
应用可以每秒多次或几百次进入与退出各种低功耗模式。
进入或退出低功耗模式以及快速处理数据的功能极为重要，因为CPU会在等待时钟稳定下来期间浪费电流。
mcu选型的注意事项
mcu选型的注意事项MCU（Microcontroller Unit）是一种集成了处理器核心、内存、输入输出接口和定时器等功能的微型计算机系统。
在选择MCU时，有一些注意事项需要考虑，以确保选型的准确性和合适性。
本文将介绍一些选择MCU的注意事项。
考虑应用需求。
在选择MCU之前，需要明确应用的需求和目标。
例如，需要确定所需的计算处理能力、存储容量、通信接口、功耗要求等。
这些需求将直接影响MCU的选型。
考虑处理器核心类型。
MCU的处理器核心类型有多种选择，如ARM、MIPS、AVR等。
不同的处理器核心具有不同的特性和优势，例如ARM处理器核心在处理性能和能耗方面具有优势，而AVR处理器核心则在低功耗和成本方面较为突出。
因此，在选择MCU时，需要根据应用需求和处理器核心的特性进行权衡和选择。
第三，考虑存储容量和存储类型。
MCU的存储容量通常包括程序存储器（Flash）和数据存储器（RAM）。
程序存储器用于存储代码和程序，而数据存储器用于存储变量和数据。
在选择MCU时，需要根据应用的代码和数据大小确定所需的存储容量，并考虑存储器类型（如闪存、EEPROM等）对应用的影响。
第四，考虑通信接口和外设功能。
MCU通常具有多种通信接口，如UART、SPI、I2C等，用于与外部设备进行数据交互。
此外，MCU还可集成多种外设功能，如模数转换器（ADC）、定时器、PWM等。
在选择MCU时，需要根据应用需求确定所需的通信接口和外设功能，并确保MCU具备相应的硬件支持。
第五，考虑功耗要求。
不同的应用对功耗的要求不同，有些应用对低功耗要求较高，而有些应用对功耗要求则相对较低。
在选择MCU 时，需要根据应用的功耗要求选择合适的MCU，并考虑MCU的功耗管理功能是否满足应用需求。
第六，考虑开发工具和生态系统支持。
选择一款MCU后，需要考虑其相关的开发工具和生态系统支持。
开发工具包括编译器、调试器、仿真器等，而生态系统支持则包括开发文档、代码示例、社区支持等。
华大低功耗 mcu选型手册
华大低功耗 mcu选型手册
华大低功耗MCU选型手册是针对用户对低功耗、高效率的MCU的需求而编写的，为用户提供了多种型号的MCU选择。
在选择MCU时，需要考虑以下几个关键因素：
1. 功耗：低功耗MCU在电池供电的应用中尤为重要，可以延长电池寿命。
2. 性能：MCU的性能应满足应用需求，包括运算速度、内存大小等。
3. 外设接口：根据具体应用，可能需要不同的外设接口，如UART、SPI、I2C等。
4. 开发工具：应选择与MCU配套的开发工具，以便于开发调试。
基于以上考虑因素，华大低功耗MCU选型手册提供了多种型号的MCU供用户选择，包括HC32F003系列、HC32F4A0系列等。
这些MCU具有低功耗、高性能、丰富的外设接口等特点，适用于各种应用场景。
此外，华大还提供了完善的开发工具，如Keil、IAR等，以帮助用户快速开发MCU应用程序。
总之，华大低功耗MCU选型手册为用户提供了多种选择，用户可以根据实际需求选择最适合的MCU型号。
同时，华大还提供了完善的开发工具和服务，帮助用户快速开发出高效、可靠的MCU应用程序。
MSP430系列MCU选型手册
MSP430系列MCU选型手册msp430芯片选型中文手册指南F1XX系列Vcc1.8V-3.6V型号MSP430F1101A参数说明1KBflash,128BRam；slopeA/D；14个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）,比较器_A；20DW、PW封装型号MSP430F1111A参数说明2KBflash,128BRam；slopeA/D；14个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）,比较器_A；20DW、PW封装型号MSP430F1121A参数说明4KBflash,256BRam；slopeA/D；14个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）,比较器_A；20DW、PW封装型号MSP430F1122参数说明4KBflash,256BRam；5通道10bitA/D；14个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）,温度传感器；20DW、PW封型号MSP430F1132参数说明8KBflash,256BRam；5通道10bitAD；14个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；温度传感器；20DW、PW封型号MSP430F122参数说明4KBflash,256BRam；slopeA/D；22个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个USART接口，比较器A；28DW、PW封装型号MSP430F123参数说明8KBflash,256BRam；slopeA/D；22个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个USART接口，比较器A；28DW、PW封装型号MSP430F1222参数说明4KBflash,256BRam；8通道10bitA/D；22个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个USART接口；温度传感器；28DW、PW封装型号MSP430F1232参数说明8KBflash,256BRam；8通道10bitA/D；22个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个USART接口；温度传感器；28DW、PW封装型号MSP430F133参数说明8KBflash,256BRam；8通道12bitA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B(3个捕获/比较寄存器）；1个USART接口；比较器_A；温度传感器；64PM封装型号MSP430F135参数说明16KBflash,512BRam；8通道12bitA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B(3个捕获/比较寄存器）；1个USART接口；比较器_A；温度传感器；64PM封装型号MSP430F147参数说明32KBflash,1024BRam；8通道12bitA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；温度传感器；64PM封装型号MSP430F1471参数说明32KBflash,1024BRam；slopeA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；64PM封装型号MSP430F148参数说明48KBflash,2048BRam；8通道12bitA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；温度传感器；64PM封装型号MSP430F1481参数说明48KBflash,2048BRam；slopeA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；64PM封装型号MSP430F149参数说明60KBflash,2048BRam；8通道12bitA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；温度传感器；64PM封装型号MSP430F1491参数说明60kflash,2048BRam；slopeA/D；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；64PM封装型号MSP430F155参数说明16KBflash,512BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B(3个捕获/比较寄存器）；1个USART接口；I2C；比较器_A；温度传感器；64PM封装型号MSP430F156参数说明24KBflash,512BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B(3个捕获/比较寄存器）；1个USART接口；I2C；比较器_A；温度传感器；64PM封装型号MSP430F157参数说明32KBflash,1024BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B(3个捕获/比较寄存器）；1个USART接口；I2C；比较器_A；温度传感器；64PM 封装型号MSP430F167参数说明32KBflash,1024BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；I2C；MPY；比较器_A；温度传感器；64PM封装型号MSP430F168参数说明48KBflash,2048BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；I2C；MPY；比较器_A；温度传感器；64PM封装型号MSP430F169参数说明60KBflash,2048BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；I2C；MPY；比较器_A；温度传感器；64PM封装型号MSP430F1610参数说明32KBflash,5120BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；I2C；MPY；比较器_A；温度传感器；64PM封装型号MSP430F1611参数说明48KBflash,10240BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B （7个捕获/比较寄存器）；2个USART接口；I2C；MPY；比较器_A；温度传感器；64PM封装型号MSP430F1612参数说明55kBflash,5120BRam；8通道12bitA/D；双12bitD/A；DMA；48个I/O口；16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B（7个捕获/比较寄存器）；2个USART接口；I2C；MPY；比较器_A；温度传感器；64PM封装F21X1系列Vcc1.8V-3.6V型号MSP430F2101参数说明1KBflash,128BRam；slopeA/D；16个I/O口；15/16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；比较器_A；BrownoutProtection；20DW、PW、DGV封装型号MSP430F2111参数说明2KBflash,128BRam；slopeA/D；16个I/O口；15/16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；比较器_A；BrownoutProtection；20DW、PW、DGV封装型号MSP430F2121参数说明4KBflash,256BRam；slopeA/D；16个I/O口；15/16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；比较器_A；BrownoutProtection；20DW、PW、DGV封装型号MSP430F2131参数说明8KBflash,256BRam；slopeA/D；16个I/O口；15/16位WDT；1个16位Timer_A(3个捕获/比较寄存器）；比较器_A；BrownoutProtection；20DW、PW、DGV封装F4XX系列Vcc1.8V-3.6VWithLCD驱动型号MSP430F412参数说明4KBflash,256BRam；slopeA/D；48个I/O口；96段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）；比较器_A；64PM封装型号MSP430F413参数说明8KBflash,256BRam；slopeA/D；48个I/O口；96段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）；比较器_A；64PM封装型号MSP430F415参数说明16kBflash,512BRam；slopeA/D；48个I/O 口；96段LCD；16位WDT；8bit基本定时器；1个16位Timer_A （3或5个捕获/比较寄存器）；比较器_A；64PM 封装型号MSP430F417参数说明32kBflash,1024BRam；slopeA/D；48个I/O口；96段LCD；16位WDT；8bit基本定时器；1个16位Timer_A（3或5个捕获/比较寄存器）；比较器_A；64PM 封装型号MSP430FE423参数说明8KBflash,256BRam；SD16A/D；Emeter计量模块；14个I/O口；128段LCD；16位WDT；8bit基本定时器；1个16位Timer_A（3个捕获/比较寄存器）；1个USART 接口；温度传感器；64PM封装型号MSP430FE425参数说明16KBflash,512BRam；SD16A/D；Emeter计量模块；14个I/O口；128段LCD；16位WDT；8bit基本定时器；1个16位Timer_A（3个捕获/比较寄存器）；1个USART 接口；温度传感器；64PM封装型号MSP430FE427参数说明32KBflash,1KBRam；SD16A/D；Emeter计量模块；14个I/O口；128段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）；1个USART 接口；比较器_A；温度传感器；64PM封装型号MSP430F4250参数说明16KBflash,256BRam；32个I/O 口；56段LCD；SD16位ADC （具有内部参考电压）；12位DAC，1个16位Timer_A(3个捕获/比较寄存器）；温度传感器模块；电源检测功能；48DL封装型号MSP430F4260参数说明24KBflash,256BRam；32个I/O 口；56段LCD；SD16位ADC （具有内部参考电压）；12位DAC，1个16位Timer_A(3个捕获/比较寄存器）；温度传感器模块；电源检测功能；48DL封装型号MSP430F4270参数说明32KBflash,256BRam；32个I/O 口；56段LCD；SD16位ADC （具有内部参考电压）；12位DAC，1个16位Timer_A(3个捕获/比较寄存器）；温度传感器模块；电源检测功能；48DL封装型号MSP430FG437参数说明32KBflash,1024BRam；12通道12bitA/D；双12bitD/A；48个I/O口；DMA；128段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器)；1个16位Timer_B(3个捕获/比较寄存器)；1个USART接口；温度传感器；80PN 封装型号MSP430FG438参数说明48KBflash,2048BRam；12通道12bitA/D；双12bitD/A；48个I/O口；DMA；128段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器)；1个16位Timer_B(3个捕获/比较寄存器)；1个USART接口；温度传感器；80PN 封装型号MSP430FG439参数说明60KBflash,2048BRam；12通道12bitA/D；双12bitD/A；48个I/O口；DMA；128段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器)；1个16位Timer_B(3个捕获/比较寄存器)；1个USART接口；温度传感器；80PN 封装型号MSP430FW423参数说明8KBflash,256BRam；slopeA/D；流量测量ScanIF模块；48个I/O口；96段LCD；16位WDT；8bit 基本定时器；1个16位Timer_A(3或5个捕获/比较寄存器)；比较器_A；64PM封装型号MSP430FW425参数说明16KBflash,512BRam；slopeA/D；流量测量ScanIF模块；48个I/O口；96段LCD；16位WDT；8bit 基本定时器；1个16位Timer_A(3或5个捕获/比较寄存器)；比较器_A；64PM封装型号MSP430FW427参数说明32KBflash,1024BRam；slopeA/D；流量测量ScanIF模块；48个I/O口；96段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3或5个捕获/比较寄存器)；比较器_A；64PM封装型号MSP430F435参数说明16KBFlash,512BRam；8通道12bitA/D；48个I/O口；128/160段LCD；16位WDT；8bit基本定时器；16位Timer_A(3个捕获/比较寄存器）_A；16位Timer_B(3个捕获/比较寄存器）_B；1个USART接口；比较器_A；温度传感器；80PN/100PZ封装型号MSP430F436参数说明24KBFlash,1024KRam；8通道12bitA/D；48个I/O口；128/160段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B(3个捕获/比较寄存器）_B；1个USART接口；比较器_A；温度传感器；80PN/100PZ封装型号MSP430F437参数说明32KBFlash,1024KRam；8通道12bitA/D；48个I/O口；128/160段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）_A；1个16位Timer_B(3个捕获/比较寄存器）_B；1个USART接口；比较器_A；温度传感器；80PN/100PZ封装型号MSP430F447参数说明32KBFlash,1024KRam；8通道12bitA/D；48个I/O口；160段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B （7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；温度传感器；100PZ 封装型号MSP430F448参数说明48KBflash,2048BRam；8通道12bitA/D；48个I/O口；160段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B （7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；温度传感器；100PZ 封装型号MSP430F449参数说明60KBflash,2048BRam；8通道12bitA/D；48个I/O口；160段LCD；16位WDT；8bit基本定时器；1个16位Timer_A(3个捕获/比较寄存器）；1个16位Timer_B （7个捕获/比较寄存器）；2个USART接口；MPY；比较器_A；温度传感器；100PZ 封装型号TSS721AD参数说明M-BUS总线型号TRF6901PT参数说明无线射频率收发芯片。
NEC 78K 8-16位MCU选型手册
UART UART（支持LIN总线）
UART/CSI UART（支持LIN总线）/CSI
CSI CSI/I2C CSI 具有自动发送/接收功能
I2C IEBus CAN 片上调试 LCD [segment x common] 16-位 A/D 转换器 10-位 A/D 转换器 8-位 A/D 转换器 8-位 D/A 转换器 乘法器/除法器 [位 x 位，位÷位] 其它功能 电源电压
8-位 x 4
√
−
8
√ −
16 x 16 32 ÷ 16
√
−
1 − 1 16-位 x 1, − 1 1 − − − − 1 − − − − − 8 − − − POC, LVI
8-位 x 4
16 x 16 32 ÷ 16
√
−
1 − 1 16-位 x 1, − 1 1 − − − − 1 − − − − − 8 − − − POC, LVI
78K0S/KA1+ µ PD78F9221 µ PD78F9222
78K0S/KB1+ µ PD78F9232 µ PD78F9234
POC: 上电清零电路 LVI: 低电压检测电路
1 Flash √ 128 10 8 M, − 8 −/− 1 1
−
− − 1 16-位 x 1, − − − − − − − − − − − − − 4 − − − POC (2.1 V ± 0.1 V), 2.0 ～ 5.5 10-SSOP
8-位单片微控制器
设备
存储器时钟 I/O Fra bibliotek线定时器
78K0, 78K0S 微控制器
STMCU全部选型手册
October 200832-bit microcontroller familiesFor a list of abbreviations and notes, refer to the page following the mature products16-bit microcontroller familiesAbbreviations ADC : Analog-to-digital converter ART : Auto-reload timerATAPI : AT attachment packet interface AWU : Auto wake-up from halt BLPD : Byte level protocol decoder BOD : Brown-out detector CAN : Controller area network CAPCOM : Capture compare CSS : Clock security systemDALI : Digital addressable lighting interface DDC : Data display channelDiSEqC : Digital satellite equipment control DMA : Direct memory access DSC : Dual supply control DTC : Data transfer coprocessor ETM : Embedded trace macrocell EMI : External memory interface HDLC : High-level data link control IAP : In-application programmingIC/OC : Input capture/output compare ICP programming IR : Infrared IrDA : Infrared data association ISP : In-situ programming I ²C : Inter-integrated circuit I²S : Inter-IC sound LCD : Liquid crystal display LIN : Local interconnect network LVD : Low voltage detection MAC : Multiply accumulator MC : Motor controlMFT: Multifunction timer MMC : MultiMediaCardNMI : Non-maskable interrupt OSG : Oscillator safeguardPCA : Programmable counter array PDR : Power-down resetPHW : Programmable halt wake-up PEC : Peripheral event controller PLD : Programmable logic device PLL : Phase locked loop POR : Power-on resetPVD : Programmable voltage detector PVR : Programmable voltage regulator PWM : Pulse width modulation ROP : Readout protection RTC : Real-time clock timer SC : SmartcardSCI : Serial communication interface SCR : Smartcard readerSDIO : Secure digital input output SMI : Serial memory interface SPI : Serial peripheral interface SSC : Single-cycle switching support SSP : Synchronous serial port TBU : Time base unit LI : Top level interruptUART : Universal asynchronous receiver transmitter USART : Universal sync/async receiver transmitter USB : Universal Serial Bus WDG : Watchdog timerWWDG: Window watchdog timerPackages DIP : Dual in-line package LCC : Leaded chip carrierSDIP : Shrink dual in-line package PQFP : Plastic quad flat package SO : Small outlineLQFP : Low-profile quad flat package PBGA : Plastic ball grid array DFN : Dual flat no-lead QFN : Quad flat no-leadAbbreviations and notesNotes8-, 16- and 32-bit microcontroller development toolsThis reference guide lists ST and third-party development tools that are promoted as part of the ST tool offer for 8-, 16- and 32-bit microcontrollers. For the latest news about this tool offer, please refer to /mcuEvaluation boards from STn Implement full range of device featuresn Come with complete schematics, documentation and code samples Starter kitsn Everything you need to start developing quickly and easilyn Immediate device evaluation with ready-to-run demonstration applications n In-circuit debugging to troubleshoot code using actual input/output of target systemEvaluationLow-cost evaluation boards are also available from third-party vendorsIn-circuit debugger/programmersn Real-time debugging using debug resources on the standard chip, no bondouts, 100% electrical characteristics guaranteedn R equires separate evaluation or application boardn RLink – debug and program a full range of ST MCUs from 8- to 32-bit Softwaren Free software toolsets with development environment, programming interface, integrated compiler support and moren C compilers with free versions that output code up to a specified sizen Free ST firmware libraries for all standard peripherals plus special package for USB, motor control and moren Large selection of development solutions (IDE + compiler) from leading tool suppliers for ARMn Large selection of royalty-free RTOS, solution stacks (TCP/IP, USB, …) and middlewareDevelopmentAdvanced emulation systems for 8-bit devices n Real-time emulationn Advanced breakpointsn Trace capability with complex triggeringn Code performance analysisIn-circuit programmersProgram the device on an application board via JTAG, in-circuit communication or in-situ programming interface (depends on target device)Pre-programmingST FASTROM service for ST7 and ST6 also provides rapid delivery ofready-to-mount MCUs pre-programmed with the customer’s application Automated programmersThird-party solutions for programming in a production environment.For a list of vendors, refer to /mcu Single position programmersThird-party solutions for programming one device at a time. Allows operation from a host PC, or in standalone mode.For a list of vendors, refer to /mcuGang programmersThird-party solutions for programming several devices at once. For a list of vendors, refer to /mcuProgrammingSTM32, STR9 and STR7 familiesTools for ST ARM® core based STM32, STR9 and STR7 families include a full range of third-party solutions that come complete with C/C++ compiler, integrated development environment and in-circuit debugger/programmer with industry standard JTAG interface. Explore and start applications easily with any of a range of affordable, easy-to-use starter kits. Take advantage of a range of firmware to speedapplication development, including free ST libraries and royalty-free RTOS, solution stacks (USB, TCP/IP, ...) and middleware.1 All part numbers shown are for STMicroelectronics and third-party tools (Hitex, IAR, Keil and Raisonance) which are available from ST.Additional tools that are not available through ST can be ordered from the third-parties listed.Development and programming toolsSTM32, STR9 and STR7 familiesST10 development and programming toolsST10 familySTM8 development and programming toolsDevelopment and programming toolsST7 family1 Add suffix /EU, /US or /UK for the power supply for your region2 Add suffix /EU or /US for the power supply for your region3 Available from ST or from Raisonance, 4 Requires optional connection kit. See ‘How to order ST7-EMU or DVP’ for connection kit ordering information5 Includes connection kit for SDIP32/SDIP42 only. See ‘How to order ST7-EMU or DVP’ for connection kit ordering information6 Includes connection kit for DIP16/SO16 only. See ‘How to order ST7-EMU or DVP’ for connection kit ordering information7 Order socket board ST7SB40-QP48 for LQFP48 package and ST7SB20J for all other packages 8 USB connection to PCHow to order ST7-EMU or DVP (accessories)9 Parallel port connection to PC10 Available accessories: ST7MC-MOT/IND (induction motor) and ST7-ICC/OPTOISOL (optoisolation board included with motor control starter kit (ST7MC-KIT/BLDC), is also available as separate product)11 Socket boards complement any tool with ICC capabilities (ST7-STICK, InDART, RLINK, DVP3, EMU3, etc.)12 For in-circuit debugging of ST7FLITEUx, users must also order the AD-ICD/DS8Z adapter. For ICD of ST7FLITEUx in DFN8 package, users must order AD-ICD/DS8Z and ST7MDT10-8/DVP13 Order code for daughter board featuring the selected MCU, which can be used with any REva starter kit (STxxxxx-SK/RAIS)How to order ST7-EMU or DVP (accessories)1 TEB: target emulation board to emulate a specific ST7 sub-family. Users can upgrade their emulator to emulate another ST7 family by ordering the appropriate TEB2 Connection kit: complete kit to connect the emulator to a target board. Includes cables, adapters and sockets for specific packages3 DVP3: entry-level emulator that offers a low-cost, flexible, modular debugging and programming solution4 EMU3: high-end emulator that offers a complete, flexible, modular debugging and programming solutionReplacement power supplies:1 For EMU series emulators: APS5V/8A2 For DVP series emulators: APS5V/2A51 Includes all connection kits2 Must be ordered separately3 Connection kit not included, must be ordered separately4 The following connection kit is provided without specifying a connection kit part number:ST7MDT10-16/DVP for DIP16/SO16, when ordering ST7MDT10-DVP3 and ST7MDT10-TEB/DVP SDIP32/SDIP42 connection kit, when ordering ST7MDT20-DVP3 and ST7MDT20-TEB/DVP 5 Add suffix /EU, /US or /UK for the power supply of your region6 These parts are included with the emulator. Ordering references are provided for upgrade or replacement7 These parts are included with connection kits and EMU series emulators. References are provided for ordering spare or replacement parts8 Connection kit Includes application board sockets and connectors for DIP8, SO8 and DFN8 packages 9 ICD adapter for ST7FLITEUx includes application board connectors for DIP8 and SO8 packagesUPSD familyUPSD development and programming toolsNotes1 Code development is easily managed without an external hardware in-circuit emulator by using the on-chip JTAG in-circuit emulator. ST has partnered with Keil Software and Raisonance to include support for UPSD3300 and UPSD3400 JTAG ICE in their 8051 Development ToolsST6 familyNotes1 Add suffix /110, /220 or /UK for the power supply for your region2 Emulator interface with Raisonance’s IDE (RIDE)MCU - Typical designations and part number suffixes© STMicroelectronics - October 2008 - Printed in Italy - All rights reserved The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies.All other names are the property of their respective owners.For more information on ST products and solutions,visit Order code: SGMICRO1008。
微芯MCU选型手册
2V to 5.5V
PIC12F519
P
$0.49
FLASH
8
1.5
0.04
64
8
8
2
LS, FW
POR WDT
1 x 8-bit
2V to 5.5V
PIC12F609
P
$0.52
FLASH
8
1.75
0.06
8
20
5
1
LS, FW
BOR POR WDT BOR POR WDT BOR POR WDT
F
FLASH
8
28
1
28
20
5
LS, FW, APM
2 x 8-bit 1 x 16-bit
1 - A/E/USART 1 - MSSP
mTouch Ch.: 17
2 - CCP
1 A/D 17 x 10 - bit @100ksps Bandgap: INTERNAL
1.8V to 5.5V
PIC16F1519
F
FLASH
8
14
0.5
28
20
5
LS, FW, APM
2 x 8-bit 1 x 16-bit
1 - A/E/USART 1 - MSSP
mTouch Ch.: 17
2 - CCP
1 A/D 17 x 10 - bit @100ksps Bandgap: INTERNAL
1.8V to 5.5V
PIC16F1517
PIC16F1823
P
$0.78
FLASH
8
3.5
0.12
256
14
便携医疗设备MCU选型必备宝典
便携医疗设备MCU选型必备宝典引言电子技术的快速发展与个人健康意识的逐步提高，使得人类对便携式医疗电子仪器的需求日益增长，生物测量与医疗仪器正成为21世纪全球经济的支柱型产业之一。
反之，随着各类便携式生物医学仪器的进步和普及，测量精度、功耗、运算能力、成本和集成度等指标的提高，对电子器件尤其是微控制器（MCU）提出了更高要求。
在家用医疗市场的逐步开放、偏远地域居民和军队野外作战训练时的医护需求、医院内部临床诊断和长期监测的需求等因素的共同驱动下，部分传统专业级医疗设备已逐步走向便携化。
便携式医疗电子仪器的快速发展，使得移动医疗、远程医疗、个人日常健康监测和治疗成为可能。
便携化的趋向给医疗电子仪器的设计提出了低功耗、高集成度和简单易用的要求，此外，仪器设计智能化和算法复杂化使得核心处理器必须具备更高的计算能力。
作为仪器仪表的核心控制器与处理中心，MCU的合理选型是仪器设计的首要步骤。
以TI、Freescale、ST、Silicon Labs、Microchip和Renesas为代表的半导体芯片公司，纷纷针对便携式医疗电子仪器市场推出了自己低功耗、高集成度的混合信号处理器。
当各类MCU 厂商皆宣称自己产品功耗最低、外设丰富和性能优越时，设计者需要结合自身科研和产品的现有需求与未来几年的升级规划来合理分析，从而选择较合适的MCU进行仪器设计。
1 便携式医疗电子仪器简介1.1 家用与临床便携式医疗仪器以电子温度计、血糖仪、数字血压计、低频理疗仪为代表的家用医疗电子产品的竞争日益激烈，市场需求的可提升空间巨大。
此类仪器设计对成本十分敏感，片上集成相应外设的MCU能有效降低系统成本，同时还有利于缩小尺寸和提高稳定性；对MCU运算性能则要求不高，传统8 bit或16 bit内核基本满足设计需求。
此外，以动态心电记录仪和动态血压监测仪为代表的临床便携式医用设备，具有测量精度高、可连续运行时间长、运算相对复杂和通讯功能多样等特点。
TI MCU选型指南
IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries(TI)reserve the right to make corrections,modifications,enhancements,improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty.Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty.Except where mandated by government requirements,testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design.Customers are responsible for their products and applications using TI components.To minimize the risks associated with customer products and applications,customers should provide adequate design and operating safeguards.TI does not warrant or represent that any license,either express or implied,is granted under any TI patent right,copyright,mask work right, or other TI intellectual property right relating to any combination,machine,or process in which TI products or services are rmation published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement e of such information may require a license from a third party under the patents or other intellectual property of the third party,or a license from TI under the patents or other intellectual property of TI.Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties,conditions,limitations,and notices.Reproduction of this information with alteration is an unfair and deceptive business practice.TI is not responsible or liable for such altered rmation of third parties may be subject to additional restrictions.Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice.TI is not responsible or liable for any such statements.TI products are not authorized for use in safety-critical applications(such as life support)where a failure of the TI product would reasonably be expected to cause severe personal injury or death,unless officers of the parties have executed an agreement specifically governing such use.Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications,and acknowledge and agree that they are solely responsible for all legal,regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications,notwithstanding any applications-related information or support that may be provided by TI.Further,Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or"enhanced plastic."Only products designated by TI as military-grade meet military specifications.Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk,and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS16949requirements.Buyers acknowledge and agree that,if they use any non-designated products in automotive applications,TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:Products ApplicationsAudio /audio Automotive and Transportation /automotiveAmplifiers Communications and Telecom /communicationsData Converters Computers and Peripherals /computersDLP®Products Consumer Electronics /consumer-appsDSP Energy and Lighting /energyClocks and Timers /clocks Industrial /industrialInterface Medical /medicalLogic Security /securityPower Mgmt Space,Avionics and Defense /space-avionics-defense Microcontrollers Video and Imaging /videoRFID OMAP Mobile Processors /omapWireless Connectivity /wirelessconnectivityTI E2E Community Home Page Mailing Address:Texas Instruments,Post Office Box655303,Dallas,Texas75265Copyright©2012,Texas Instruments Incorporated。
教你挑选MCU
时控制,仪器仪表,通讯设备,家用电器,宇航设备等各个领域.
Motorola单片机: Motorola是世界上最大的单片机厂商.从M6800开始,开发了广
泛的品种,4位,8位,16位32位的单片机都能生产,其中典型的代表有:8位
机 M6805,M68HC05系列,8位增强型M68HC11,M68HC12 , 16位机M68HC16, 32位
图像处理等市场.
8051单片机: 8051单片机最早由Intel公司推出,其后,多家公司购买了8051的
内核,使得以8051为内核的MCU系列单片机在世界上产量最大,应用也最广泛,有
人推测8051可能最终形成事实上的标准MCU芯片.
LG公司生产的GMS90系列单片机,与Intel MCS-51系列,Atmel 89C51/52,89C2051
列,SMC63系列,SMC60系列和八位单片机SMC88系列.
东芝单片机: 东芝单片机门类齐全,4位机在家电领域有很大市场,8位机主要有
870系列,90系列,该类单片机允许使用慢模式,采用32K时钟时功耗降至10UA数
量级.东芝的32位单片机采用MIPS 3000A RISC的CPU结构,面向VCD,数字相机,
频率较Intel类单片机 低很多，因而使得高频噪声低，抗干扰能力强,更适合用
于工控领域及恶劣的环境。Motorola 8位单片机过去的策略是以掩膜为主的，最
近推出OTP计划以适应单片机发展新趋势，在32位机上，M.CORE在性能和功耗方
面都胜过ARM7。
Microchip单片机
专用串行电缆即可对目标系统进行在线实时仿真.
EPSON单片机: EPSON单片机以低电压,低功耗和内置LCD驱动器特点著名于世,尤
灵动微电子产品选型手册说明书
MM 32 FMM 32 SPINMM 32 PMM 32 L MM 32 W通用高性能微控制器产品电机与电源专用微控制器产品超精简型微控制器产品低功耗高安全微控制器产品无线微控制器产品公司概况｜Company Overview灵动微电子成立于2011年，是中国本土领先的通用32位MCU产品及解决方案供应商。
灵动微电子的MCU 产品以MM32为标识，基于Arm Cortex-M系列内核，自主研发软硬件和生态系统。
目前已量产200多款型号，累计交付超2亿颗，在本土通用32位MCU公司中位居公司介绍灵动产品家族前列。
客户涵盖智能工业、汽车电子、通信基建、医疗健康、智慧家电、物联网、个人设备、手机和电脑等应用领域。
灵动微电子是中国为数不多的同时获得了Arm-KEIL、IAR、SEGGER国际权威组织官方支持的本土MCU公司，并建立了独立、完整的通用MCU生态体系，可以为客户提供从硬件芯片到软件算法、从参考方案到系统设计的全方位支持。
灵动微电子的MM32系列有5大家族：面向通用高性能MCU市场领域MM 32 F提供开放式的无线平台MM 32 W专用于电机和电源应用MM 32 SPIN支持超精简定制化需求MM 32 P覆盖低功耗、安全应用场景MM 32 L01公司概况｜Company OverviewMM32 产品组合｜MM32 MCU Product Portfolio02MM32 产品组合｜MM32 MCU Product PortfolioMM32F通用系列MM32L低功耗系列MM32W无线系列MM32SPIN电机与电源系列全新MM32｜New MM32全新MM32系列是灵动微电子于2020年推出的新一代通用MCU平台，旨在为客户提供更高性能、更低功耗、更高可靠性、稳定性和健壮性的微控制器。
全新MM32硬件上与经典MM32全兼容，保留了2.0-5.5V 宽压供电设计。
- 高性能Arm Cortex-M0 （高达96MHz）和 Arm Cortex-M3- Flash: 16KB - 512KB, SRAM: 2KB - 128KB - 不同系列之间引脚兼容，提供 20/32/48/ 64/100/144 多种引脚和封装形式产品特点MM32F 系列是灵动微电子新一代 MM32系列中率先升级推出的通用高性能MCU 平台。
华大半导体 mcu选型手册
华大半导体 mcu选型手册
华大半导体（HuaDa Semiconductor）是一家专业从事微控制器（MCU）设计和制造的公司。
他们的MCU选型手册通常包括以下内容：
1. 产品概述，手册会详细介绍华大半导体MCU产品线的整体概况，包括不同系列的MCU特点、应用领域等。
2. 产品参数，手册会列出各款MCU的技术参数，如处理器核心
类型、主频、存储器容量、外设接口等，帮助用户根据自己的需求
选择合适的型号。
3. 功能特点，手册会详细描述每款MCU的特色功能，比如低功
耗模式、通信接口、定时器、ADC/DAC等，以及支持的各种协议和
标准。
4. 应用示例，手册会列举一些典型的应用场景和案例，帮助用
户了解MCU在不同领域的应用方式，比如工业控制、智能家居、汽
车电子等。
5. 开发工具，手册通常也会介绍相应的开发工具，包括调试器、
编译器、开发板等，以及支持的软件开发环境和资源。
6. 技术支持，手册会提供联系方式或者网址，让用户可以获取更多的技术支持和帮助，比如技术文档、应用笔记、软件下载等。
总的来说，MCU选型手册是帮助客户了解华大半导体MCU产品线，选择合适型号并进行开发的重要参考资料。
希望这些信息能够帮助你更好地了解华大半导体MCU选型手册。
C8051F MCU选型指南
Engineering for a mixed-signal world.SPRING 2013Engineering for a mixed-signal world.Mixed-Signal 8-bit and 32-bit Microcontrollers /MCUSPRING 2013MICROCONTROLLERPRODUCT SELECTOR GUIDE2 / M I C R O C O N T R O L L E R S E L EC T O R G U I D EProduct Selector Tables32-bit Microcontroller ProductsREQUEST SAMPLES AND DOWNLOAD DOCUMENTATION AT /32bit-mcu™™™M I C R O C O N T R O L L E R S E L EC T O R G U I D E /3®®REQUEST SAMPLES AND DOWNLOAD DOCUMENTATION AT /mcu4 / M I C R O C O N T R O L L E R S E L EC T O R G U I D EM I C R O C O N T R O L L E R S E L EC T O R G U I D E / 56 / M I C R O C O N T R O L L E R S E L EC T O R G U I D EM I C R O C O N T R O L L E R S E L EC T O R G U I D E / 78 / M I C R O C O N T R O L L E R S E L EC T O R G U I D EM I C R O C O N T R O L L E R S E L EC T O R G U I D E / 910 / M I C R O C O N T R O L L E R S E L E C T O R G U I D ELow-Power MCUsM I C R O C O N T R O L L E R S E L EC T O R G U I D E / 1112 / M I C R O C O N T R O L L E R S E L E C T O R G U I D EM I C R O C O N T R O L L E R S E L EC T O R G U I D E / 1314 / M I C R O C O N T R O L L E R S E L E C T O R G U I D EM I C R O C O N T R O L L E R S E L EC T O R G U I D E /15Precision32 AppBuilder Rapid Prototyping UtilitySilicon Labs’ Precision32 AppBuilder graphical rapid prototyping and code generation utility helps designers get up and runningquickly. Designers can easily set-up and adjust pin configuration, map peripherals, configure clocking trees and generate source code allwithout wading through programming register bits in the data sheet. A sophisticated error checking engine validates peripheral properties and pin assignments, and provides real-time feedback when conflicts are detected.Last minute changes… No problem. New peripherals can be easilyadded with simple firmware modifications so developers won’t have to work weekends to try to accommodate new features.Precision32 Integrated Development EnvironmentSilicon Labs’ Eclipse-based IDE includes a full compiler, debugger and an online dashboard for application-critical information such as a software libraries with example code, data sheets, schematics, PCB footprints, application notes, active version tracking andautomatic updates. These tools are available for free, without code size or time restrictions.Precision32™ 32-bit Microcontroller SoftwareFIND THE TOOLS YOU NEED TO HELP WITH YOUR ENTIRE PROJECT /32bit-softwareSilicon Labs 8-bit IDEThe Silicon Labs Integrated Development Environment (IDE) is a complete, stand-alone software program that includes the items following:The IDE interfaces to third party development tool chains to provide system designers a complete embedded software development environment. The IDE and other development tools run under the Windows 2000, Windows XP and Windows Server 2003 operating systems and support the entire MCU portfolio.• 4 kB C compiler included • Source code editor • Project manager• Keil 8051 macro assembler and linker • Device programmer• Supports full-speed, non-intrusive, in-circuit debug logic • Source-level debug• Variable watch window • Real-time breakpoints• Conditional memory watchpoints • Memory and register inspect/modify • Supports third-party development tools • Single-step and animated execution modes8-bit Microcontroller SoftwareFIND THE TOOLS YOU NEED TO HELP WITH YOUR ENTIRE PROJECT /8bit-software16 / M I C R O C O N T R O L L E R S E L E C T O R G U I D EHardware SupportFIND THE TOOLS YOU NEED TO HELP WITH YOUR ENTIRE PROJECT /MCU Development KitsSilicon Labs offers complete tools to help designersthroughout the entire project. All microcontroller solutions offerhardware and software platforms to easily set up and configure,compile and debug a project. Full documentation and a broadrange of third-party compilers and development tools areavailable. Software stacks provide networking support formulti-node metering networks. Software simulation tools canestimate power consumption and determine expected batterylife. /devkitsComplete development/prototyping system includes the following:• Prototyping/demonstration board• Integrated development environment• Configuration tools• MCU configuration wizardSiM3U1xx Precision32 32-bit MCU UDP CARD C8051F996 LOW POWER TARGET BOARDMCU USB TOOLSTICK C8051F990 SLIDER EVALUATION KITM I C R O C O N T R O L L E R S E L EC T O R G U I D E / 17CLASS D TOOLSTICKBATTERY LIFE ESTIMATION UTILITY C8051F960 MCU UDP CARD WITH Si1120 DAUGHTER CARD Unified Development PlatformSilicon Labs offers an innovative approach in hardware support with the Unified Development Platform (UDP), featuring a main mother board, modular daughter cards, integrated LCD and ample real estate for prototyping, expansion and integration. The UDP provides a standalone demonstration and software development platform for the Wireless MCU devices and both 8-bit and Precision32™ 32-bit MCU products. Kits include UDP base boards and RF test cards. Additional test cards may be ordered if the 915 MHz or 868 MHz test cards don’t satisfy the requirements for the end application. /UDPThe UDP platform supports all of the following:• MCU code and firmware development (IDE, Configuration Wizard, example code etc.)• RF design and optimization (WDS support, automatic board detection and firmware download, sample RF code, run-time PHY interface etc.)• Networks and protocol stacks (such as the wireless M-Bus stack)Test CardsPico CardI/O CardUDP MotherboardMCU Card18 / M I C R O C O N T R O L L E R S E L E C T O R G U I DEThird Party Tool SupportA broad range of third-party compilers and development tools are available including a free Small Device C Compiler (SDCC) supported by Application Note 198, “Integrating SDCC 8051 Tools into the Silicon Labs IDE.” Device programming and source-level debug of OMF-51 object files is fully supported.Product and Design SupportThe MCU Knowledge Base provides answers to common technical questions about the MCU product line and product use. MCU User’s Forum is a place where C8051 MCU users can share experiences and technical questions with other users. For MCU support email: mcuapps@Microcontroller ResourcesFIND THE TOOLS YOU NEED TO HELP WITH YOUR ENTIRE PROJECT/mcuCross-Reference UtilitySilicon Labs’ cross reference utility allows you to type in acompetitor’s part number (full or partial) and if we have a cross-match, our part number pops up. Results are automatically filtered as you type and can be exported to excel so you can e-mail or save results. /cross-referenceSilicon Labs Online UtilitiesFIND THE TOOLS YOU NEED TO HELP WITH YOUR ENTIRE PROJECT/online-utilitiesBattery Life EstimatorThe Battery Life Estimator is an easy-to-use web-based calculator that gives designers a quick and easy way to understand the discharge characteristics of different system configurations to help optimize low-power applications. You can also download the software to your desktop. /batterycalculatorMCU Parametric SearchSilicon Labs offers an easy-to-use parametric search for ourMicrocontroller products. Click the buttons to filter as you search for the features you require and find the perfect part to meet your needs. You can then buy or sample parts or export your results into a sortable Excel spreadsheet. /parametric-searchParametric Search iPad AppTake the parametric search mobile! The Silicon Labs Parametric Search iPad app makes it easy to find exactly what you need for your next embedded design. Quickly jump between microcontroller and other product families. Access data sheets and other documentation directly in the app and download to iBooks for offline access. Browse detailed product information – features, applications, block diagrams and even order samples and development kits, all from within the app. Offline access available – refresh data the next time you’re connected to the Internet./parametric-searchISO 9001ISO 14001ISO/TS 16949SILICON L ABOR ATORIE S INC. | 400 W. CE SAR CHAVEZ | AUSTIN, T X 78701 | USA | +1 (512) 416-8500 | SIL 。
MCU选择和应用技巧
MCU选择和应⽤技巧MCU选择和应⽤技巧本刊编辑∶Robin Zhang在现代嵌⼊式开发领域，通过了解客户需求和电⼦产品趋势，搜集市⾯上⼤量的不同型号的MCU资料，结合市场上刚出现的低成本⾼性能MCU新产品，是成功进⾏MCU选型的基础。
⼀般来说，嵌⼊式系统开发⼈员在选择MCU 时，通常遵循四项主要标准∶功能、可⽤性、成本和熟悉程度。
本⽂通过资料汇编，介绍⼀些常⽤的MCU选择和应⽤技巧。
微控制器（Microcontroller;MCU）是⼀种⽆所不在的嵌⼊式控制晶⽚，玩具、家电、医疗、汽车等领域都有其存在，负责各种感测、监控⼯作，例如我们常见的电饭煲、电磁炉、咖啡壶等内部均由MCU负责感测⽔温，并接受使⽤者的指⽰是否该加温、沸腾，同样的冷⽓机的温控也是⽤MCU来实现。
此外，如桌上电脑所⽤的键盘、滑⿏等也各有⼀颗MCU，负责将敲打的键码、指标的X/Y 轴位移偏量等资讯回传给电脑CPU。
对於选择MCU进⾏设计的系统设计师来说，可获得的⼤量的不同型号MCU会让选型⼯作变得复杂，如SiliconLabs⼯作电压低⾄0.9V的8位元MCU，德州仪器针对低功耗应⽤的多款16位元MSP430，飞思卡尔和英飞针对汽车应⽤的MCU⽅案，Atmel的AVR系列和Mi cro chip的PIC系列⼀直在推陈出新……虽然新的32位ARM核Cor tex-m3处理器已经发布许久，古⽼的8位8051核还是在不同MCU中占领主流地位……⾯对缤纷多彩的MCU世界，正确把握MCU发展趋势，熟悉MCU架构，甚⾄於借助选择⼯具进⾏分析⽐较就显得极其必要。
MCU市场的价值⼀、分析趋势正是由於应⽤⼴泛，MCU市场才没有像其他处理晶⽚（如CPU、GPU）那样形成垄断，MCU晶⽚业者只要能贴近某⼀产业或深耕某⼀应⽤的控制需求，就能在市场上争得⼀席之地。
就应⽤趋势看，MCU市场⽬前可以说是百花齐放，处处呈现春⾊和希望。
1、32位MCU正在成为主⼒据国际半导体贸易统计显⽰，8/16位元晶⽚仍然占据著MCU市场56%的销量和40%的销售额，最流⾏的8位Intel架构的8051晶⽚平均每年销售33亿⽚，⼤约是32位PC CPU销量的30倍，甚⾄最早於1971年⾯世的低端4位元晶⽚的销量也只⽐它们的最⾼销量低15%，嵌⼊式系统开发者仍然在使⽤这些晶⽚，因为它们具有极低的价格、微功耗，以及⼩的体积，可以为⼏乎任何应⽤增加智慧功能。
8位或32位,MCU该怎么选？掌握这几点很关键
8位或32位,MCU该怎么选？掌握这几点很关键该如何对8位以及32位的MCU进行选择？8位和32位MCU在功能上仍是互为辅助、各有千秋，这其中的诀窍就在于，需先了解什么样的应用适合什么样的MCU架构。
本文对比了8位MCU和32位MCU的使用案例，也可作为如何选择这两种MCU架构的指南使用。
本文中大部分32位MCU的范例将关注ARM Cortex-M，Cortex-M在不同MCU供应商产品组合中表现得非常相似。
鉴于8位MCU有很多种架构，所以很难对8位供应商产品进行类似的比较。
为了便于进行比较，我们将使用广泛应用、易于理解的8051 架构，该架构深受嵌入式开发人员的青睐。
8位和32位MCU该如何选择？有时，当我对比人们所熟知的事物（例如ARM和8051）时，感觉就像在物联网论坛上发出「《星际争霸战》比《星际大战》好看」的帖子一样，很快就能火起来。
事实上，ARM Cortex和8051哪个更好并不是个逻辑问题，就像是在问：吉他和钢琴哪个更好？真正要解决的问题应是哪种MCU能帮我更好地解决当下面临的问题。
不同的任务需要使用不同的工具，我们的目的是要了解「如何才能更好地运用我们所拥有的工具」，包括8位和32位MCU。
几乎可以肯定地说，那些简单回答「ARM更好」或「8051更好」的人各有其目的，他们也许正在试图销售某种产品。
对不同的设备进行比较，需要对其进行测量。
有很多构建工具可供选择，我们尽量选择一些场景，我认为其能够进行最公平的比较，且最能代表开发人员的真实体验。
并非所有的MCU都是一样的在开始对架构进行比较之前，要注意到并非所有生产的MCU都是一样的，这一点非常重要。
如果将基于ARM CortexM0+处理器的现代MCU与30年前的8051 MCU进行对比，8051 MCU在性能对比上不会胜出。
幸运的是，依然有许多供应商一直在对8位处理器持续投资。
在许多应用中，8位内核能依然能够弥补M0+或M3内核不利的地方，甚至在一些方面性能更佳。
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SG1006–2 SG1006Q12008
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010: DSP56852VFE, DSP56F807VF80, DSP56F807VF80E, MC56F8357VVFE, MC56F8367VVFE
FREESCALE’S 8-BIT PRODUCTS SUMMARY
For complete part number information and temperature definitions, refer to Product Numbering System on page SG1006-9.
FREESCALE’S 8-BIT PRODUCTS SUMMARY (continued)
For complete part number information and temperature definitions, refer to Product Numbering System on page SG1006-9.
General Purpose Products (continued)
Product Flash RAM USB ADC 10-Bit MC9S08QE4 MC9S08QD4 MC9S08QD2 MC9S08QA4 MC9S08QA2 MC9S08LC60 MC9S08LC36 MC9S08SH8 MC9S08SH4 4 KB 4 KB 2 KB 4 KB 2 KB 60 KB 36 KB 8 KB 4 KB 256B 256B 128B 256B 128B 4 KB 2.5 KB 512 B 256 B — — — — — — — — — 10 4 4 4 4 8 (12-bit) 8 (12-bit) 12 12 8-Bit SCI (UART) √ — — — — √ √ √ √ √ — — — — 2 2 √ √ √ — — — — √ √ √ √ — — — √ √ √ √ √ √ 1 + 6-CH 2 + 3-CH 2 + 3-CH 2 + 3-CH MTIM MTIM 2 + 2-CH 2 + 2-CH 2+ 2-CH 2+ 2-CH ICS ICS ICS ICS ICS ICG w/FLL ICG w/FLL ICS ICS ESCI SPI I2 C ACMP Timer Clock Type DFN/QFN — — — 8 8 — — — 24 Package QFP/LQFP 32 — — — — 80, 64 80, 64 — — TSSOP 16 — — — — — — — 20, 16 SOIC 20, 28 8 8 8 8 — — — 8 DIP 16 8 8 8 8 — — — 20 Dev Tools DEMO √ √ √ √ √ √ √ √ √ EVB √ — — — — — — — — FSICE Applications/Additional Features *All RS08, S08, and HC08 products include COP, LVI, POR and KBI Ultra-low power S08 device with 1.8 V to 3.6 V op range0 Low-end, flash programmable to 5 V Low-end, flash programmable to 5 V Entry-level S08 with 1.8 V to 3.3 V op range Entry-level S08 with 1.8 V to 3.3 V op range Integrated Liquid Crystal Display (LCD) driver with high segment count Integrated Liquid Crystal Display (LCD) driver with high segment count Low-end S08 device with 2.7 V to 5.5 V op range Low-end S08 device with 2.7 V to 5.5 V op range
General Purpose Products
Product Flash RAM USB ADC 10-Bit 8-Bit SCI (UART) ESCI SPI I2 C ACMP Timer Clock Type DFN/QFN Package QFP/LQFP TSSOP SOIC DIP Dev Tools DEMO EVB FSICE Applications/Additional Features *All RS08, S08, and HC08 products include COP, LVI, POR and KBI High integration, flash programmable to 5V High integration, flash programmable to 5V High integration, flash programmable to 5V High integration, flash programmable to 5V High integration, flash programmable to 5V High performance, flash programmable down to 1.8 V High performance, flash programmable down to 1.8 V High performance, flash programmable down to 1.8 V High performance, flash programmable down to 1.8 V USB S08 device with high performance and integration USB S08 device with high performance and integration High performance, low voltage, small package High performance, low voltage, small package Ultra-low end, new RS08 core for small MCUs Ultra-low end, new RS08 core for small MCUs Ultra-low end, new RS08 core for small MCUs Ultra-low end, new RS08 core for small MCUs High performance, flash programming down to 1.8 V Flash programming down to 1.8 V, small package Ultra-low power S08 device with 1.8 V to 3.6 V op range Ultra-low power S08 device with 1.8 V to 3.6 V op range Ultra-low power S08 device with 1.8 V to 3.6 V op range
HCS08 & RS08 Families
MC9S08AW60 MC9S08AW32 MC9S08AW16 MC9S08AC16 MC9S08AC8 MC9S08GB60A MC9S08GT60A MC9S08GB32A MC9S08GT32A MC9S08JM60 MC9S08JM32 MC9S08QG8 MC9S08QG4 MC9RS08KA8 MC9RS08KA4 MC9RS08KA2 MC9RS08KA1 MC9S08GT16A MC9S08GT8A MC9S08QE128 MC9S08QE64 MC9S08QE8 60 KB 32 KB 16 KB 16KB 8KB 60 KB 60 KB 32 KB 32 KB 60KB 32KB 8 KB 4 KB 8 KB 4 KB 2 KB 1 KB 16 KB 8 KB 128 KB 64 KB 8 KB 2 KB 2 KB 1 KB 1 KB 1 KB 4 KB 4 KB 2 KB 2 KB 4K 2K 512B 256B 254B 126B 62B 62B 2 KB 1 KB 8 KB 4 KB 512B — — — — — — — — — 2.0 2.0 — — — — — — — — — — — 16 16 16 8 8 8 8 8 8 12 (12-bit) 12 (12-bit) 8 8 12 12 — — 8 8 24 (12-bit) 24 (12-bit) 10 2 2 2 2 2 √ √ √ √ 2 2 √ √ — — — — √ √ 2 2 √ √ √ √ √ √ √ √ √ √ 2 2 √ √ — — — — √ √ 2 2 √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ — — √ √ 2 2 √ — — — — — — — — — √ √ √ √ √ √ √ √ — — 2 2 — 6 + 2-CH 6 + 2-CH 4 + 2-CH 6 + 2-CH 6 + 2-CH 3 + 5-CH 2 + 2-CH 3 + 5-CH 2 + 2-CH 1 x 2-CH 1 x 6-CH 1 x 2-CH 1 x 6-CH 2-CH MTIM 2-CH MTIM MTIM MTIM MTIM MTIM 3 + 2-CH 3 + 2-CH 1 + 6-CH 2 + 3-CH 1 + 6-CH 2 + 3-CH 1 + 6-CH 2 + 3-CH ICG w/FLL ICG w/FLL ICG w/FLL ICG w/FLL ICG w/FLL ICG ICG ICG ICG MCG with PLL and FLL MCG with PLL and FLL ICS ICS ICS ICS ICS ICS ICG ICG ICS ICS ICS 48 48 48 48 48 — 48 — 48 48 48 8, 16, 24 8, 16, 24 — — 6 6 48, 32 48, 32 48 48 — 64, 44 64, 44 64, 44 44, 32 44, 32 64 44 64 44 64, 44 64, 44 — — — — — — 44 44 80, 64, 44 80, 64, 44, 32 32 — — — — — — — — — — — 16 16 — — — — — — — — 16 — — — — — — — — — — — 8 8 16, 20 16, 20 8 8 — — — — 20, 28 — — — 42 42 — 42 — 42 — — 16 16, 8 16, 20 16, 20 8 8 42 42 — — 16 √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ — — — — — √ √ √ √ — — — — — — — — √ — √ √ √