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单片机编程  2.4寸液晶屏资料及51单片机代码

2.4寸TFT 240370PQ 1.TFT电源：屏幕电源为2.8-3.3V;切记不能用5V; 2．本TFT兼容8/16位数据接口。切换方式通过排线上的R1,R2实现，0欧姆电阻短接R1为16位模式，短接R2为8位模式。默认发货短接R2,既默认为8位数据接口，8位模式下，使用高8位(即DB7-DB15); 3.数据口电平:理论上不能让数据口电平超过3.3V,如果一定要用5V的单片 ...

https://www.eeworm.com/dl/502/30256.html

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单片机编程  单片机入门知识手册

单片机入门知识手册说到单片机，首先想到的是中央处理器（CPU），学过微型计算机的人都知道，CPU是计算机最核心的部分，它可以完成算术运算和逻辑运算，CPU再配上外部存储器，输入输出单元就构成一台微型计算机。其实单片机可以看成一台微型计算机，它具有CPU的功能，并且自身带有存储器，带有输入输出接口（如串行UART、A ...

https://www.eeworm.com/dl/502/30563.html

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单片机编程  PCA9536—4位I2C和SMBus IO口产品数据手册

The PCA9536 is an 8-pin CMOS device that provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. I/O expanders provide a simple solution when additional I/O is needed ...

https://www.eeworm.com/dl/502/30567.html

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单片机编程  PCA9534—带中断的低功耗8位I2C和SMBus IO口

The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, l ...

https://www.eeworm.com/dl/502/30569.html

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单片机编程  学单片机之串口通信

带您从零学单片机之串口通信串口应用简介51的单片机除了定时器/计数器和中断外.还拥有串行通信接口.有了这个接口我们可以用它和电脑通信.我们可以利用串口向电脑发送数据,也可以用串口接收电脑的数据.有了这个接口我们可以利用它来设计很多东西,数据采集,多机通信,远程控制等等. 串行通信是将一组数据分成一位位的方式在数 ...

https://www.eeworm.com/dl/502/30773.html

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单片机编程  PCA9534 8bit I2C bus and SMBus low power IO port with interru

The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O toleran ...

https://www.eeworm.com/dl/502/30982.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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单片机编程  PCA9671 Remote 16-bit IO expan

The PCA9671 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 Plus(Fm+) family.The PCA9671 is a drop in upgrade for the PCF8575 providing higher I2C-bus speeds(1 MHz versus 400 kHz) so that the o ...

https://www.eeworm.com/dl/502/31017.html

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单片机编程  PCA9672 Remote 8-bit IO expand

The PCA9672 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 PCA9672 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/502/31019.html

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单片机编程  PCA9673 Remote 16-bit IO expan

The PCA9673 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 PCA9673 is a drop in upgrade for the PCF8575 providing higher Fast-mode Plus(Fm+) I2C-bus speeds (1 MHz versus 400 kHz ...

https://www.eeworm.com/dl/502/31021.html

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