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单片机编程  Virtex-5, Spartan-DSP FPGAs Ap

Virtex-5, Spartan-DSP FPGAs Application Note This application note demonstrates how efficient implementations of Digital Up Converters(DUC) and Digital Down Converters (DDC) can be done by leveraging the Xilinx DSP IPportfolio for increased productivity and reduced time to development. Step-by-step ...

https://www.eeworm.com/dl/502/30664.html

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单片机编程  PCA9516 5channel I2C hub

The PCA9516 is a BiCMOS integrated circuit intended forapplication in I2C and SMBus systems.While retaining all the operating modes and features of the I2Csystem, it permits extension of the I2C-bus by buffering both the data(SDA) and the clock (SCL) lines, thus enabling five buses of 400 pF.The I2C ...

https://www.eeworm.com/dl/502/30984.html

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单片机编程  Replacement of NXP PCA9518 wit

The outputs of the PCA9518 are immediately available as soon as there is a voltage present on thesupply >~1V and behave as described above. The power-on reset of the PCA9518A keeps the outputsturned off during power-up and maintains the high impedance of the outputs throughout the power-upcycle. The ...

https://www.eeworm.com/dl/502/31039.html

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单片机编程  提高PLC程序运行速度的几种编程方法

PLC 以其可靠性高、抗干扰能力强、配套齐全、功能完善、适应性强等特点，广泛应用于各种控制领域。PLC作为通用工业控制计算机，是面向工矿企业的工控设备，使用梯形图符号进行编程，与继电器电路相当接近，被广大工程技术人员接受。但是在实际应用中，如何编程能够提高PLC程序运行速度是一个值得我们思考研究的问题。1 PL ...

https://www.eeworm.com/dl/502/31594.html

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教程资料  XAPP228 -Virtex器件内的四端口存储器

This application note describes how the existing dual-port block memories in the Spartan&trade;-IIand Virtex&trade; families can be used as Quad-Port memories. This essentially involves a dataaccess time (halved) versus functionality (doubled) trade-off. The overall bandwidth of the blockmemory in ...

https://www.eeworm.com/dl/fpga/doc/32585.html

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教程资料  XAPP098 - Spartan FPGA低成本、高效率串行配置

This application note shows how to achieve low-cost, efficient serial configuration for Spartan FPGA designs. The approachrecommended here takes advantage of unused resources in a design, thereby reducing the cost, part count, memory size,and board space associated with the serial configuration ci ...

https://www.eeworm.com/dl/fpga/doc/32590.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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开关电源  LTC3207,LTC3207-1用户指南

&nbsp; The LTC&reg;3207/LTC3207-1 is a 600mA LED/Camera driverwhich illuminates 12 Universal LEDs (ULEDs) and onecamera fl ash LED. The ULEDs are considered universalbecause they may be individually turned on or off, setin general purpose output (GPO) mode, set to blink at aselected on-time and ...

https://www.eeworm.com/dl/520/36572.html

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技术书籍  MAX338/MAX339的英文数据手册

　　本软件是关于MAX338, MAX339的英文数据手册：MAX338, MAX339&nbsp;&nbsp; 8通道/双4通道、低泄漏、CMOS模拟多路复用器　　The MAX338/MAX339 are monolithic, CMOS analog multiplexers (muxes). The 8-channel MAX338 is designed to connect one of eight inputs to a common output by control of a 3-bit binar ...

https://www.eeworm.com/dl/537/36708.html

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技术书籍  简析现场总线和工业网络的关系

　　电子发烧友讯：现场总线是指以工厂内的测量和控制机器间的数字通讯为主的网络，也称现场网络。也就是将传感器、各种操作终端和控制器间的通讯及控制器之间的通讯进行特化的网络。原来这些机器间的主体配线是ON/OFF、接点信号和模拟信号，通过通讯的数字化，使时间分割、多重化、多点化成为可能，从而实现高性能化、 ...

https://www.eeworm.com/dl/537/36712.html

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