The LTC®3610 is a high power monolithic synchronousstep-down DC/DC regulator that can deliver up to 12Aof continuous output current from a 4V to 24V (28Vmaximum) input supply. It is a member of a high currentmonolithic regulator family (see TABLE 1) that featuresintegrated low RDS(ON) N-channel top and bottomMOSFETs. This results in a high effi ciency and highpower density solution with few external components.This regulator family uses a constant on-time valleycurrent mode architecture that is capable of operatingat very low duty cycles at high frequency and with veryfast transient response. All are available in low profi le(0.9mm max) QFN packages.
上傳時(shí)間： 2013-11-07
上傳用戶：moerwang
Demonstration circuit 1562A is an engineering toolto design and evaluate the LTC699X-X family ofTimerBlox circuits. The center section of the boardcontains a pre-configured TimerBlox function.DC1562A comes in twelve timing function variationsas outlined in TABLE 1.Surrounding the center board is a ”playground”prototyping area. The prototyping area has padsfor Dip-8, S8, MS8, or S6 packages with breadboarding connections to each pin and two convenientpower buses and ground bus surrounding theentire area. This area is for conditioning signals tocontrol the timer function and for adding loads controlled in time.
標(biāo)簽： 6994 LTC PCB 參考設(shè)計(jì)
上傳時(shí)間： 2013-10-18
上傳用戶：如果你也聽說
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程序的語言”設(shè)置，不用改區(qū)域語言設(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，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
介紹基于ISA總線與KH-9300的數(shù)據(jù)采集板卡的設(shè)置，詳細(xì)說明8254定時(shí)計(jì)數(shù)器及8259中斷控制器的結(jié)構(gòu)特點(diǎn)、工作方式、控制字等，探討中斷類型、中斷處理程序、中斷矢量表及其填寫。重點(diǎn)講述使用TorboC編寫中斷服務(wù)程序的方法，應(yīng)注意的主要問題及程序測試的結(jié)果。 Abstract: The settings of KH-9300 data acquisition board based on the ISA bus is introduced,the structural characteristics,working methods,control characters of the timing counter 8254 and interruptioncontroller 8259 are explained in detail.The interruption type,interrupt handling programs,interruption vector TABLE and its filling also are discussed.Further,great emphasis is put on the method of interrupt service program compiled by Torbo C,the main issues that should be noted,and the results of program testing.
上傳時(shí)間： 2013-11-14
上傳用戶：qq527891923
普通查表原理 查表時(shí)，執(zhí)行CALL指令后，下一條指令的地址被自動(dòng)壓入堆棧中，然后跳轉(zhuǎn)到數(shù)據(jù)表處，執(zhí)行TJMP指令，PC指針跳轉(zhuǎn)到PC11~PC8,TBR（TABLE BRANCH REGISTER）,AC(累加器)所指向的地址，該地址的數(shù)據(jù)通過RTNW指令返回，其中，高4位數(shù)據(jù)保存到TBR寄存器中，低4位數(shù)據(jù)保存到累加器AC中。返回時(shí)PC指針會(huì)自動(dòng)被堆棧中保存的PC數(shù)據(jù)覆蓋。
標(biāo)簽： 中穎 位單片機(jī) 注意事項(xiàng)
上傳時(shí)間： 2014-12-27
上傳用戶：zhaoman32
Proteus中文入門基礎(chǔ)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（未完成）... 34
上傳時(shí)間： 2013-10-31
上傳用戶：hanli8870
Using the XGATE for Manchester DecodingTABLE of Contents 1 Introduction 1.1 XGATE Module in S12X 2 Decoding Algorithm 3 Software Implementation 3.1 Frame Scheme 3.2 Operating Modes and Demo 3.3 Files Summary 3.4 Complete Mode Flowchart 4 Manchester Encoder 4.1 Devices Used 5 Conclusion Appendix A Noise Elements During RF Transmissions in the Manchester Decoding ImplementationA.1 Types of Noise A.2 Effects of Noise A.3 Workaround for Noise Effects
標(biāo)簽： Manchester XGATE 譯碼
上傳時(shí)間： 2013-10-15
上傳用戶：wqq123456
匯編器在微處理器的驗(yàn)證和應(yīng)用中舉足輕重，如何設(shè)計(jì)通用的匯編器一直是研究的熱點(diǎn)之一。本文提出了一種開放式的匯編器系統(tǒng)設(shè)計(jì)思想，在匯編語言與機(jī)器語言間插入中間代碼CMDL（code mapping description language）語言，打破匯編語言與機(jī)器語言的直接映射關(guān)系，由此建立起一套描述匯編語言與機(jī)器語言的開放式映射體系。基于此開放式映射體系開發(fā)了一套匯編器系統(tǒng)，具有較高層次上的通用性和可移植性。【關(guān)鍵詞】指令集，CMDL，匯編器，開放式 Design of RetargeTABLE Assembler System Liu Ling Feng Wen Nan Wang Ying Chun Jiang An Ping Ji Li Jiu IME of Peking University, 100871【摘要】An assembler plays a very important role in the field of microprocessor verifications and applications, thus how to build a retargeTABLE assembler system has been a hotspot in this field for long time. This paper presents a new method about the retargeTABLE assembler system design.It provides a kind of language CMDL, code mapping description language. During the process of assembling, assembler languages are firstly translated to CMDL, and then mapped to the machine codes. In an other word, CMDL is inserted between assembler languages and machine codes during the translation procedure. As a medium code, CMDL has a lot of features, such as high extraction, strong descript capabilities. It can describe almost all attributes of assembler languages. By breaking the direct mapping relationship between assembler languages and machine codes, the complexities of machine codes are hided to the users, therefore, the new retargeTABLE assembler system has higher retargeTABLE level by converting the mapping from assembler languages and machine codes to assembler languages and CMDL, and implementationof it becomes easier. Based on the new mapping system structure, a retargeTABLE assemblersystem is developed. It proved the whole system has good retargetability and implantability.【關(guān)鍵詞】instruction set, symbol TABLE, assembler, lexical analysis, retargetability
上傳時(shí)間： 2013-10-10
上傳用戶：meiguiweishi
The P82B715 I2C Buffer was designed toextend the range of the local I2C bus out to50 Meters. This application note describesthe results of testing the buffer on severaldifferent types of cables to determine themaximum operating distances possible. Theresults are summarized in a TABLE for easyreference.
標(biāo)簽： extender P82B715 Using I2C
上傳時(shí)間： 2014-12-28
上傳用戶：lou45566
The C500 microcontroller family usually provides only one on-chip synchronous serialchannel (SSC). If a second SSC is required, an emulation of the missing interface mayhelp to avoid an external hardware solution with additional electronic components.The solution presented in this paper and in the attached source files emulates the mostimportant SSC functions by using optimized SW routines with a performance up to 25KBaud in Slave Mode with half duplex transmission and an overhead less than 60% atSAB C513 with 12 MHz. Due to the implementation in C this performance is not the limitof the chip. A pure implementation in assembler will result in a strong reduction of theCPU load and therefore increase the maximum speed of the interface. In addition,microcontrollers like the SAB C505 will speed up the interface by a factor of two becauseof an optimized architecture compared with the SAB C513.Moreover, this solution lays stress on using as few on-chip hardware resources aspossible. A more excessive consumption of those resources will result in a highermaximum speed of the emulated interface.Due to the restricted performance of an 8 bit microcontroller a pin compatible solution isprovided only; the internal register based programming interface is replaced by a set ofsubroutine calls.The attached source files also contain a test shell, which demonstrates how to exchangeinformation between an on-chip HW-SSC and the emulated SW-SSC via 5 external wiresin different operation modes. It is based on the SAB C513 (Siemens 8 bit microcontroller).A TABLE with load measurements is presented to give an indication for the fraction of CPUperformance required by software for emulating the SSC.
標(biāo)簽： synchronous Emulating serial
上傳時(shí)間： 2014-01-31
上傳用戶：z1191176801
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