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单片机编程 FREESCALE单片机的C编程教程

 1.The C Programming Language is a powerful, flexible andpotentially portable high-level programming language. 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 X-tal oscillators on 8-bit mic

<Almost since the introduction of microcontrollers as electronic components there always has been an oscillatorcircuit on the device to make it work. From application point of view only some external components wererequired to make it work. However, to make sure that it will always work required mor ...
https://www.eeworm.com/dl/502/30992.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 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 PCA9548中文资料

PCA9548 是NXP 公司生产的I2C 总线扩展器件,通过它可以将1 路I2C 总线扩展为8路。在对内部控制寄存器进行相应配置后,可同时选择1 路或多路下行I2C 总线与上行I2C总线连接。通过外部的硬件复位可使器件恢复到默认状态——断开上下行总线之间的连接,提高系统的可靠性。经过对器件工作电压的选择,可使1.8V、2.5V、3.3V 与5 ...
https://www.eeworm.com/dl/502/31020.html
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单片机编程 PCA9548A 8 channel I2C bus swi

The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. TheSCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individualSCx/SDx channel or combination of channels can be selected, determined by thecontents of the programmable control register.An ...
https://www.eeworm.com/dl/502/31022.html
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单片机编程 PCA9674 PCA9674A Remote 8-bit

The PCA9674/74A is a drop-in upgrade for the PCF8574/74A providing higher Fast-modePlus I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWMdimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devicescan be on the bus without the need for bus buffers, highe ...
https://www.eeworm.com/dl/502/31023.html
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单片机编程 8-bit I2C-bus and SMBus IO port with reset

The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register, 8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption and a high-impedance open-dra ...
https://www.eeworm.com/dl/502/31025.html
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单片机编程 RSM-4055 8通道隔离数字量输入输出模块

RSM-4055 是带隔离的数字量输入输出模块。模块有8 路隔离数字量输入,8 路隔离数字量输出。数字量输入可支持开关触点信号或电平信号,数字量输出采用开漏输出,最大负载可达50V,50mA,同时模块的DI 通道还具有计数功能,能对小于2kHz 的数字脉冲信号进行计数,DI 输入检测和计数都具有数字滤波功能能有效滤掉干扰信号,数 ...
https://www.eeworm.com/dl/502/31045.html
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单片机编程 8-bit IC and SMBus IO Port wit

The CAT9534 is an 8-bit parallel input/output portexpander for I²C and SMBus compatible applications.These I/O expanders provide a simple solution inapplications where additional I/Os are needed: sensors,power switches, LEDs, pushbuttons, and fans.The CAT9534 consists of an input port register, ...
https://www.eeworm.com/dl/502/31107.html
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