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单片机编程  Freescale MC9S12C64介绍及编程练习

特性及优点&#8226; 内嵌FLASH和CAN的低成本器件– S12系列的低端产品– 16-位的性能8-位的价格&#8226; 引脚/封装– 48/52 LQFP– 80 QFP, 与B&D 系列引脚兼容– Flash从16K-128K,易于产品升级&#8226; 8通道10位AD– 7μsec, 10-bit 单次转换时间, 具有扫描模式 ...

https://www.eeworm.com/dl/502/30837.html

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单片机编程  MC9S08QG8英文资料 pdf

MC9S08QG8英文资料 The MC9S08QG8 is the newest member of the Freescale 8-bit family of highly integratedmicrocontrollers, based on the high-performance yet low power HCS08 core. The MC9S08QG8is an excellent solution for power-sensitive applications with extended battery life and maximum performance d ...

https://www.eeworm.com/dl/502/30853.html

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单片机编程  FREESCALE单片机的C编程教程

&nbsp;1.The C Programming Language is a powerful, flexible andpotentially portable high-level programming language.&nbsp;2.The C language may be used successfully to create a programfor an 8-bit MCU, but to produce the most efficient machinecode, the programmer must carefully construct the C Languag ...

https://www.eeworm.com/dl/502/30856.html

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单片机编程  DTMF Decoding with a PIC16xxx

This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Ap ...

https://www.eeworm.com/dl/502/30878.html

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单片机编程  自动检测80C51串行通讯中的波特率

自动检测80C51串行通讯中的波特率:本文介绍一种在80C51 串行通讯应用中自动检测波特率的方法。按照经验，程序起动后所接收到的第1 个字符用于测量波特率。这种方法可以不用设定难于记忆的开关，还可以免去在有关应用中使用多种不同波特率的烦恼。人们可以设想：一种可靠地实现自动波特检测的方法是可能的，它无须严格限制可 ...

https://www.eeworm.com/dl/502/30923.html

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单片机编程  PCA9539 PCA9539R 16-bit I2C-bu

The PCA9539; PCA9539R is a 24-pin CMOS device that provides 16 bits of GeneralPurpose parallel Input/Output (GPIO) expansion with interrupt and reset forI2C-bus/SMBus applications and was developed to enhance the NXP Semiconductorsfamily of I2C-bus I/O expanders. I/O expanders provide a simple solut ...

https://www.eeworm.com/dl/502/30997.html

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单片机编程  PCA9544A 4channel I2C multiple

The PCA9544A provides 4 interrupt inputs, one for each channeland one open drain interrupt output. When an interrupt is generated byany device, it will be detected by the PCA9544A and the interruptoutput will be driven LOW. The channel need not be active fordetection of the interrupt. A bit is also ...

https://www.eeworm.com/dl/502/31005.html

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单片机编程  PCA9549 Octal bus switch with

The PCA9549 provides eight bits of high speed TTL-compatible bus switching controlledby the I2C-bus. The low ON-state resistance of the switch allows connections to be madewith minimal propagation delay. Any individual A to B channel or combination of channelscan be selected via the I2C-bus, determi ...

https://www.eeworm.com/dl/502/31009.html

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单片机编程  PCA9555 16bit I2C-bus and SMBu

The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvementsinclude higher drive capability, 5 V I/O tolerance, lo ...

https://www.eeworm.com/dl/502/31013.html

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单片机编程  PCA9670 Remote 8-bit IO expand

The PCA9670 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plusfamily.The PCA9670 is a drop-in upgrade for the PCF8574 providing higher Fast-mode Plus(Fm+) I2C-bus speeds (1 MHz versus 400 kHz ...

https://www.eeworm.com/dl/502/31015.html

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