行业应用

摘要：本文阐述使用DS8007双智能卡接口评估(EV)套件的步骤，解释了怎样安装和配置软件、配置硬件，建立并装载板上DS5002FP微控制器执行的应用软件。提供了一个简单的"Hello World"实...

摘要：本应用笔记介绍了一个用DS8007接口器件和DS5002安全微控制器设计的智能卡支付终端实例。DS8007评估(EV)套件和所提供的C源代码可实现基本的智能卡存款、取款和卡的初始化功能...

摘要：DS8007是一款低成本的多协议双智能卡接口，满足所有ISO 7816、EMV™和GSM11-11的要求。这个混合信号外设可以管理微控制器和两个独立智能卡间的所有接口细节。本应用笔记介...

摘要：本应用笔记介绍使用DS8113智能卡模拟接口评估(EV)套件的必要步骤。本文说明如何安装、配置套件的硬件和软件，如何创建、装载MAXQ2000 RISC微控制器的执行程序。这里提供了一...

Abstract: A circuit is described that provides fully isolated RS-485 full-duplex data communication with only two integrated circuits (ICs). An internal transformer-coupled isolated supply and internal optocouplers in the data path provide...

Abstract: This application note describes how ESD threatens electronic systems, type of damage inflicted, how ESD is generated, test methods and waveforms used, human body and machine models for testing, IEC compliance levels, contact and ...

Abstract: This application note describes how ESD threatens electronic systems, type of damage inflicted, how ESD is generated, test methods and waveforms used, human body and machine models for testing, IEC compliance levels, contact and ...

解释马克西姆RS-4...

Abstract: Three common serial data standards, RS-232, RS-422, and RS-485, are described by specification and electrical interface. Cable termination techniques, use of multiple loads, daisy-chaining of RS-232, conversion of RS-232 to RS-48...

Abstract: Intersymbol interference in RS-485 data transmission systems is discussed, with emphasis on improving transmission data rates or line lengths. RS-485 transceivers having internal driver pre-emphasis and corresponding receiver de-...

Abstract: This paper describes methods of saving power in RS-485 data communication systems. Methods include low-power transceiver integrated circuits (ICs), ICs with built-in fail-safe thresholds allowing the elimination of cable fail-saf...

Abstract: Applying a unique 3-channel RS-485 transceiver displaying many unusual features increases reliability and fault-detection in motor-control applications. Designed specifically for motor shaft encoder applications, the MAX3097 and ...

Abstract: Electrical specifications are presented for the RS-422 unidirectional, RS-485 full-duplex and PROFIBUS data transmission systems. Electrostatic discharge (ESD) protection, data rates, and loading conditions are considered. The co...

Abstract: The proper method of wiring an RS-485 network is described, with recommendations for twisted-pair cabling and correctly locating termination resistors. Received waveforms are shown for examples of proper and improper cable termin...

Abstract: This application note describes functional operation of MAX3157 RS-485 transceiver with ±50V isolation and internal power transfer across the isolation barrier. Common-mode signals are described, and the origin of CMR voltages i...

Abstract: RS-485 transceivers offer an easy way to implement the physical layer in industrial networks; several fieldbus standards specify an RS-485 serial port for communications. This article describes several fieldbus technologies, and ...

摘要：工业数据通讯系统设计常常面临这样的疑问：在多点、中等速率、串行数据通讯中，成本最低的方案是什么？能够获得的最高传输速率是多大，传输的距离有多远？如何实现...

Some of the interface ICs currently available for serial-data transmission not only operate from low VCC levels (5V or 3.3V); they also generate bipolar dc voltages (±6.5V to ±10V) to support the minimum driver-output levels as specified...

Abstract: RS-232 features are explained in a way that makes it easy to select an appropriate RS-232 communication IC to meet any system need. Special attention is given to, signal swings, slew rates, enhanced ESD protection as well as data...

Abstract: Due to its relative simplicity and low hardware overhead (when compared to parallel interfacing), serial communications is used extensively within the electronics industry. Today, the most popular serial communications standard i...