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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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单片机编程  3-V TO 5.5-V MULTICHANNEL RS-2

The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge)protection on serial-port connection pins. The device meets the requirements of TIA/EIA-23 ...

https://www.eeworm.com/dl/502/31075.html

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单片机编程  基于PIC单片机的低功耗读卡器硬件设计

基于PIC单片机的低功耗读卡器硬件设计:本文提出了一个完整的基于串口的智能读卡器子系统设计方案并将其实现。读卡器的设计突出了小型化的要求，全部器件使用贴片封装。为了减小读卡器的体积，设计中还使用了串口窃电的技术，使用串口信号线直接给读卡器供电。为此，读卡器使用了省电的设计，采用了省电的集成电路，并大胆简 ...

https://www.eeworm.com/dl/502/31279.html

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单片机编程  Using the 87LPC76X microcontro

I2C interface, is a very powerful tool for system designers. Theintegrated protocols allow systems to be completely software defined.Software development time of different products can be reduced byassembling a library of reusable software modules. In addition, themultimaster capability allows rapid ...

https://www.eeworm.com/dl/502/31392.html

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单片机编程  DS1820 C51 子程序 (一线数据传输)

//芯片资料请到www.elecfans.com查找 //DS1820 C51 子程序//这里以11.0592M晶体为例，不同的晶体速度可能需要调整延时的时间//sbit DQ =P2^1;//根据实际情况定义端口 typedef unsigned char byte;typedef unsigned int&nbsp; word; //延时void delay(word useconds){&nbsp; for(;useconds>0;useconds--);} //复位byte ow_re ...

https://www.eeworm.com/dl/502/31450.html

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通信网络  tcp ip协议详解中文版PDF

很多不同的厂家生产各种型号的计算机，它们运行完全不同的操作系统，但TCP.IP协议族允许它们互相进行通信。这一点很让人感到吃惊，因为它的作用已远远超出了起初的设想。T C P / I P起源于6 0年代末美国政府资助的一个分组交换网络研究项目，到9 0年代已发展成为计算机之间最常应用的组网形式。它是一个真正的开放系统， ...

https://www.eeworm.com/dl/564/33320.html

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传感与控制  数据分析仪说明书

User ManualRev. 1.2SmartRF&reg; CC2420DK: Packet Sniffer for IEEE 802.15.4 and ZigBee Table of contents1 INTRODUCTION...............................................................................................31.1 HARDWARE PLATFORM.................................................................. ...

https://www.eeworm.com/dl/562/34564.html

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嵌入式综合  NCV7356单线CANBUS收发器数据手册

The NCV7356 is a physical layer device for a single wire data linkcapable of operating with various Carrier Sense Multiple Accesswith Collision Resolution (CSMA/CR) protocols such as the BoschController Area Network (CAN) version 2.0. This serial data linknetwork is intended for use in applications ...

https://www.eeworm.com/dl/566/35888.html

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