An overview of Smart Card Security. The smart card, an intelligent token, is a credit card sized plastic card embedded with an integrated circuit chip. It provides not only memory capacity, but computational capability as well. The self-containment of smart card makes it resistant to attack as it does not need to depend upon potentially vulnerable external resources. Because of this characteristic, smart cards are often used in different applications which require strong security protection and authentication.
標(biāo)簽： card intelligent overview Security
上傳時(shí)間： 2017-09-25
上傳用戶：busterman
Struts Basic Tutorial and overview
標(biāo)簽： overview Tutorial Struts Basic
上傳時(shí)間： 2013-12-02
上傳用戶：woshiayin
This application note is intended for system designers who require a hardware implementation overview of the development board features such as the power supply, the clock management, the reset control, the boot mode settings and the debug management. It shows how to use the High-density and Medium-density STM32F10xxx product families and describes the minimum hardware resources required to develop an STM32F10xxx application.
上傳時(shí)間： 2013-04-24
上傳用戶：epson850
Abstract: This application note presents an overview of the operational characteristics of accurate I²C real-time clocks (RTCs),including the DS3231, DS3231M, and DS3232. It focuses on general application guidelines that facilitate use of device resources forpower management, I²C communication circuit configurations, and I²C characteristics relative to device power-up sequences andinitializations. Additional discussions on decoupling are provided to support developing strategies for mitigating power-supply pushingof device frequency.
標(biāo)簽： I2C 高精度 實(shí)時(shí)時(shí)鐘
上傳時(shí)間： 2013-11-23
上傳用戶：WMC_geophy
This application note is an overview discussion of theLinear Technology SPICE macromodel library. It assumeslittle if any prior knowledge of this software library or itshistory. However, it does assume familiarity with both theanalog simulation program SPICE (or one of its manyderivatives), and modern day op amps, including bipolar,JFET, and MOSFET amplifier technologies
標(biāo)簽： LTC 運(yùn)算放大器 模型
上傳時(shí)間： 2013-11-14
上傳用戶：zhanditian
I.1 IntroductionI.2 Analog Integrated Circuit DesignI.3 Technology overviewI.4 NotationI.5 Analog Circuit Analysis Techniques
標(biāo)簽： Circuit Analog CMOS Desi
上傳時(shí)間： 2013-10-29
上傳用戶：jokey075
This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main sections. The first section provides an overview of general topology and interconnect guidelines. The second section concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
標(biāo)簽： pci PCB 設(shè)計(jì)規(guī)范
上傳時(shí)間： 2013-10-15
上傳用戶：busterman
We provide complete power solutions with a full lineup of power managementproducts. This brochure provides an overview of our high performance DC/DC switching regulatorcontrollers for applications including datacom, telecom, industrial, automotive, medical, avionicsand control systems. We make power design easier with our industry-leading field applicationengineering support; a broad selection of demonstration boards with schematics, layout filesand parts lists; SwitcherCAD® software for simulation, application notes and comprehensivetechnical documentation.
上傳時(shí)間： 2013-10-15
上傳用戶：lz4v4
附件下載proteus7.8破解版包含了Proteus中文入門教程在內(nèi) Proteus Pro 7.8 sp2 漢化破解版，該P(yáng)roteus 漢化破解版解決了7.2版本運(yùn)行10分鐘就自動(dòng)關(guān)閉的問(wèn)題，是目前最Protus中最高的版本。Proteus 不僅具有其它EDA工具軟件的仿真功能，還能仿真單片機(jī)及外圍器件，它是目前最好的仿真單片機(jī)及外圍器件的工具。從原理圖布圖、代碼調(diào)試到單片機(jī)與外圍電路協(xié)同仿真，一鍵切換到PCB設(shè)計(jì)，真正實(shí)現(xiàn)了從概念到產(chǎn)品的完整設(shè)計(jì)。 Proteus 是目前世界上唯一將電路仿真軟件、PCB設(shè)計(jì)軟件和虛擬模型仿真軟件三合一的設(shè)計(jì)平臺(tái)，其處理器模型支持8051、HC11、PIC10/12/16/18/24/30/DsPIC33、AVR、ARM、8086和MSP430等，Proteus為您建立完整的電子設(shè)計(jì)開發(fā)環(huán)境。中文系統(tǒng)可用，不需修改 “非unicode程序的語(yǔ)言”設(shè)置，不用改區(qū)域語(yǔ)言設(shè)置，也不要安裝其他破解。 proteus7.8破解版安裝步驟： 先安裝P7.8sp2.exe，再運(yùn)行"Proteus Pro 7.8 SP2破解1.0.exe"破解，再漢化。這個(gè)漢化補(bǔ)丁用7.5的漢化修改而來(lái)，覆蓋前注意備份原文件，如果漢化報(bào)錯(cuò)，就將“漢化報(bào)錯(cuò).exe” 復(fù)制到安裝文件夾再運(yùn)行。 Proteus 不僅具有其它EDA工具軟件的仿真功能，還能仿真單片機(jī)及外圍器件，它是目前最好的仿真單片機(jī)及外圍器件的工具。從原理圖布圖、代碼調(diào)試到單片機(jī)與外圍電路協(xié)同仿真，一鍵切換到PCB設(shè)計(jì)，真正實(shí)現(xiàn)了從概念到產(chǎn)品的完整設(shè)計(jì)。 Proteus中文入門教程 Proteus ISIS是英國(guó)Labcenter公司開發(fā)的電路分析與實(shí)物仿真軟件。它運(yùn)行于Windows操作系統(tǒng)上，可以仿真、分析(SPICE)各種模擬器件和集成電路，該軟件的特點(diǎn)是：①實(shí)現(xiàn)了單片機(jī)仿真和SPICE電路仿真相結(jié)合。具有模擬電路仿真、數(shù)字電路仿真、單片機(jī)及其外圍電路組成的系統(tǒng)的仿真、RS232動(dòng)態(tài)仿真、I2C調(diào)試器、SPI調(diào)試器、鍵盤和LCD系統(tǒng)仿真的功能；有各種虛擬儀器，如示波器、邏輯分析儀、信號(hào)發(fā)生器等。②支持主流單片機(jī)系統(tǒng)的仿真。目前支持的單片機(jī)類型有：68000系列、8051系列、AVR系列、PIC12系列、PIC16系列、PIC18系列、Z80系列、HC11系列以及各種外圍芯片。③提供軟件調(diào)試功能。在硬件仿真系統(tǒng)中具有全速、單步、設(shè)置斷點(diǎn)等調(diào)試功能，同時(shí)可以觀察各個(gè)變量、寄存器等的當(dāng)前狀態(tài)，因此在該軟件仿真系統(tǒng)中，也必須具有這些功能；同時(shí)支持第三方的軟件編譯和調(diào)試環(huán)境，如Keil C51 uVision2等軟件。④具有強(qiáng)大的原理圖繪制功能。總之，該軟件是一款集單片機(jī)和SPICE分析于一身的仿真軟件，功能極其強(qiáng)大。本章介紹Proteus ISIS軟件的工作環(huán)境和一些基本操作。 Proteus中文入門教程目 錄 第一章 概述 2 一、進(jìn)入Proteus ISIS 2 二、工作界面 3 三、基本操作 3 圖形編輯窗口 3 預(yù)覽窗口（The overview Window） 4 對(duì)象選擇器窗口 5 圖形編輯的基本操作 5 參考1 10 參考2作原理圖仿真調(diào)試 12 四、實(shí)例一 16 電路圖的繪制 17 KeilC與Proteus連接調(diào)試 26 五、實(shí)例二 30 使用元件工具箱 30 使用狀態(tài)信息條 30 使用對(duì)話框 30 使用仿真信息窗口 30 關(guān)閉Proteus ISIS 30 四、菜單命令簡(jiǎn)述 31 主窗口菜單 31 表格輸出窗口(Table)菜單 33 方格輸出窗口(Grid)菜單 33 Smith圓圖輸出窗口(Smith)菜單 33 直方圖輸出窗口(Histogram)菜單 33 第二章 基于51的PID爐溫度調(diào)節(jié)器的硬件設(shè)計(jì)及仿真 34
標(biāo)簽： proteus Proteus 7.8 破解版
上傳時(shí)間： 2013-11-20
上傳用戶：tangsiyun
MPLAB C30用戶指南(英文) HIGHLIGHTSThe information covered in this chapter is as follows:• About this Guide• Recommended Reading• Troubleshooting• The Microchip Web Site• Development Systems Customer Notification Service• Customer Support Document LayoutThe document layout is as follows:• Chapter 1: Compiler overview – describes MPLAB C30, development tools andfeature set.• Chapter 2: Differences between MPLAB C30 and ANSI C – describes thedifferences between the C language supported by MPLAB C30 syntax and thestandard ANSI-89 C.• Chapter 3: Using MPLAB C30 – describes how to use the MPLAB C30 compilerfrom the command line.• Chapter 4: MPLAB C30 Runtime Environment – describes the MPLAB C30runtime model, including information on sections, initialization, memory models, thesoftware stack and much more.• Chapter 5: Data Types – describes MPLAB C30 integer, floating point and pointerdata types.• Chapter 6: Device Support Files – describes the MPLAB C30 header and registerdefinition files, as well as how to use with SFR’s.• Chapter 7: Interrupts – describes how to use interrupts.• Chapter 8: Mixing Assembly Language and C Modules – provides guidelines tousing MPLAB C30 with MPLAB ASM30 assembly language modules.
上傳時(shí)間： 2013-10-21
上傳用戶：13925096126
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