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  • LPC1700系列芯片勘误手册

    This errata sheet describes Both the known functional problems and anydeviations from the electrical specifications known at the release date ofthis document.Each deviation is assigned a number and its history is tracked in a table atthe end of the document.

    标签: 1700 LPC 系列芯片 勘误

    上传时间: 2013-11-22

    上传用户:liangliang123

  • LPC1100系列微控制器勘误手册

    This errata sheet describes Both the known functional problems and anydeviations from the electrical specifications known at the release date ofthis document.Each deviation is assigned a number and its history is tracked in a table atthe end of the document.

    标签: 1100 LPC 微控制器 勘误

    上传时间: 2014-12-31

    上传用户:thuyenvinh

  • 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   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 binary address. The dual, 4-channel MAX339 is designed to connect one of four inputs to a common output by control of a 2-bit binary address. Both devices can be used as either a mux or a demux. On-resistance is 400Ω max, and the devices conduct current equally well in Both directions.   These muxes feature extremely low off leakages (less than 20pA at +25°C), and extremely low on-channel leakages (less than 50pA at +25°C). The new design offers guaranteed low charge injection (1.5pC typ) and electrostatic discharge (ESD) protection greater than 2000V, per method 3015.7. These improved muxes are pin-compatible upgrades for the industry-standard DG508A and DG509A. For similar Maxim devices with lower leakage and charge injection but higher on-resistance, see the MAX328 and MAX329.

    标签: MAX 338 339 英文

    上传时间: 2013-11-12

    上传用户:18711024007

  • 数字逻辑与微处理器VHDL设计

    This book is about the digital logic design of microprocessors. It is intended to provide Both an understanding of the basic principles of digital logic design, and how these fundamental principles are applied in the building of complex microprocessor circuits using current technologies.

    标签: VHDL 数字逻辑 微处理器

    上传时间: 2013-10-14

    上传用户:leyesome

  • 远程配置Nios II处理器应用笔记

         通过以太网远程配置Nios II 处理器 应用笔记 Firmware in embedded hardware systems is frequently updated over the Ethernet. For embedded systems that comprise a discrete microprocessor and the devices it controls, the firmware is the software image run by the microprocessor. When the embedded system includes an FPGA, firmware updates include updates of the hardware image on the FPGA. If the FPGA includes a Nios® II soft processor, you can upgrade Both the Nios II processor—as part of the FPGA image—and the software that the Nios II processor runs, in a single remote configuration session.

    标签: Nios 远程 处理器 应用笔记

    上传时间: 2013-11-22

    上传用户:chaisz

  • PCB抄板密技

    第一步,拿到一块PCB,首先在纸上记录好所有元气件的型号,参数,以及位置,尤其是二极管,三极管的方向,IC缺口的方向。最好用数码相机拍两张元气件位置的照片。 第二步,拆掉所有器件,并且将PAD孔里的锡去掉。用酒精将PCB清洗干净,然后放入扫描仪内,启动POHTOSHOP,用彩色方式将丝印面扫入,并打印出来备用。 第三步,用水纱纸将TOP LAYER 和BOTTOM LAYER两层轻微打磨,打磨到铜膜发亮,放入扫描仪,启动PHOTOSHOP,用彩色方式将两层分别扫入。注意,PCB在扫描仪内摆放一定要横平树直,否则扫描的图象就无法使用,扫描仪分辨率请选为600。 需要的朋友请下载哦!

    标签: PCB 抄板

    上传时间: 2014-03-04

    上传用户:tianming222

  • wp379 AXI4即插即用IP

    In the past decade, the size and complexity of manyFPGA designs exceeds the time and resourcesavailable to most design teams, making the use andreuse of Intellectual Property (IP) imperative.However, integrating numerous IP blocks acquiredfrom Both internal and external sources can be adaunting challenge that often extends, rather thanshortens, design time. As today's designs integrateincreasing amounts of functionality, it is vital thatdesigners have access to proven, up-to-date IP fromreliable sources.

    标签: AXI4 379 wp 即插即用

    上传时间: 2013-11-11

    上传用户:csgcd001

  • XAPP144 -设计CPLD多电压系统

    Today’s digital systems combine a myriad of chips with different voltage configurations.Designers must interface 2.5V processors with 3.3V memories—Both RAM and ROM—as wellas 5V buses and multiple peripheral chips. Each chip has specific power supply needs. CPLDsare ideal for handling the multi-voltage interfacing, but do require forethought to ensure correctoperation.

    标签: XAPP CPLD 144 电压

    上传时间: 2013-11-10

    上传用户:yy_cn

  • WP151 - Xilinx FPGA的System ACE配置解决方案

    Design techniques for electronic systems areconstantly changing. In industries at the heart of thedigital revolution, this change is especially acute.Functional integration, dramatic increases incomplexity, new standards and protocols, costconstraints, and increased time-to-market pressureshave bolstered Both the design challenges and theopportunities to develop modern electronic systems.One trend driving these changes is the increasedintegration of core logic with previously discretefunctions to achieve higher performance and morecompact board designs.

    标签: System Xilinx FPGA 151

    上传时间: 2013-11-23

    上传用户:kangqiaoyibie

  • XAPP390 - 利用CoolRunner-II CPLD设计数码相机

      Digital cameras have become increasingly popular over the last few years. Digital imagingtechnology has grown to new markets including cellular phones and PDA devices. With thediverse marketplace, a variety of imaging technology must be available. Imaging technologyhas expanded to include Both charge-coupled device (CCD) and CMOS image sensors.

    标签: CoolRunner-II XAPP CPLD 390

    上传时间: 2013-10-16

    上传用户:18710733152