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General information on electronics design software

  • EDA open systems: "Open" is not a magic word - Design data, not just EDA algorithms, are the key to successfully implementing large systems. A design-centric methodology can free you from vendor-specific tools and allow you to efficiently use the best tools in their class.

Software archives

General drawing tools

  • Channel 1 Filelibrary graphics programs - selection of different graphics programs
  • Dia - gtk+ based diagram creation program released under the GPL license, basically like Windows program 'Visio' but works in Linux and UNIX systems
  • Dia for Win32 - Windows version of Dia diagram creation program, get also Dia Windows installer
  • GIMP - GNU Image Manipulation Program is a freely distributed piece of software suitable for such tasks as photo retouching, image composition and image authoring
  • GNU Yellow Vector Editor (GYVE) - GYVE is a vector-based drawing program in the spirit of Adobe Illustrator and Corel Draw.
  • ImageMagick - ImageMagickTM 5.5.7 is a robust collection of tools and libraries offered under a usage license to read, write, and manipulate an image in many image formats (over 89 major formats) including popular formats like TIFF, JPEG, PNG, PDF, PhotoCD, and GIF. With ImageMagick you can create images dynamically, making it suitable for Web applications. You can also resize, rotate, sharpen, color reduce, or add special effects to an image or image sequence and save your completed work in the same or differing image format. Image processing operations are available from the command line, or from the C, C++, Perl, Java, PHP, Python, or Ruby programming languages. A high-quality 2D renderer is included, which provides a subset of SVG capabilities. ImageMagick's focus is on performance, minimizing bugs, and providing stable APIs and ABIs.
  • Sketch - a vector drawing program for Unix
  • SmartDraw - Windows shareware program for drawing flowcharts, technical drawings, web graphics, maps, and business presentations, free version available to download
  • TimingTool - TimingTool is a free to use timing diagram editor that is built around the Si2 TDML standard. VHDL or Verilog can be automatically generated from saved TDML.
  • Wiring Diagram 2000 - very small Windows 3.1 application for making wiring diagrams
  • Xfig - Quite old vector drawing program for X11

Commercial general drawing tools

  • Smartdraw - Smartdraw is a commercial drawing and visualizing tool with large clipart set suitable for enginnering work. There is 30 day evaluation version available.
  • Visio - Visio is a commercial drawing program to help to visualize and communicate ideas, information, and systems. Now part of Microsoft Office 2002.

PCB CAD

  • AMS CircuitCREATOR - Electronics CAE System
  • Bartels AutoEngineer Demo Software - printed circuit design software
  • Cadaes - a PCB package for AutoCAD
  • CadSoft EAGLE - free version 3.5 Light Edition version available for downloading, also available at http://www.cadsoft.de/
  • Cadstar - Commercial PCB design software. Free Evaluation Version available for download.
  • CIRCAD - Schematics, netlists, circuit boards, and gerber plots, free DOS evaluation version available, also Windows version available
  • EDWin - commercial quite inexpensive PCB CAD, free demo available
  • EDWin XP/2000 Professional - The complete set of commercial tools for designing and making Printed Circuit Boards: Schematic Capture, Placers, Routers, Simulation, Layout, Placers, Routers, Thermal, EMC, Signal Integrity, Libraries, Fabrication Managers. Free demo version available.
  • ExpressPCB - Free PCB layout editor for Win95 & low cost PC board manufacture
  • EZRoute2000 for Windows95/98/2000/ME/NT/XP - Printed circuit layout software for beginners and experienced users. Easy to use printed circuit layout software.
  • LochMaster - LochMaster is a developers tool for strip board (VERO) projects for designing, documenting and testing a board. This is a commercial program. A free demo version is available.
  • Orcad
  • Pads
  • PADS PowerPREVIEW-miniversio
  • Protel - Protel Route 3 and Advanced PCB demo versions, Easytrax (DOS) freeware and DOS utilities
  • Proteus - schematic capture, simulation and PCB layout editor, free Lite version available
  • PCB - a UNIX freeware program for generating printed circuit board layouts
  • PCB Editor - shareware tool by Waldherr Software Engineering
  • TARGET 3001 - PCB Layout CAD Software that contains schematic, simulation, pcb-layout, autoplacer, autorouter, emc analysis, a full working discover version for free!
  • VUTRAX - 256 pin limited FREE system downloadable
  • WinCircuit 2002 - shareware program for drawing of a printed circuit in simple or double-sided in manual or automatic routing

Schematic editor and design packages

Viewer software

  • Adobe Acrobat Reader Software - read pdf files
  • FormView - freeware program that Reads, Views, Searches and Prints Hewlett Packard Printer Control Language (PCL®) print files
  • Gerber Viewer - Gerber Viewer is a viewer for Gerber files, also called RS274X. The Gerber Viewer has a batch feature, which is based on Guile Scheme; you can write small Scheme scripts to generate other file formats, do design rule check, etc.
  • Ghostscript, Ghostview and GSview - free tools for handling postscript files
  • GC-PREVUE - DOS CAD/CAM software designed to help you work with RS-274 (often called "Gerber") photoplotter and NC drill CAD output data, also supports HPGL and Quest (Marconi Emma) plotter formats
  • Hex workshop - The professional hex editor
  • IrfanView - very fast FREEWARE (for non-commercial use) 32-Bit graphic viewer for Windoze 9x, Windows NT and Windows 2000, supports very many graphics formats and also commonly used some video and audio formats
  • OneVIEW from Unisoft - royalty free software tool that actively displays PCB assemblies from virtually any CAD data source
  • Router Solutions - company which makes viewers and converters, free Gerber viewer downloadable
  • SPLOT - tool intended for simulating the HP-GL/2, HP-GL or DXY-GL plotters on the display of your PC
  • SwiftView - viewer for PCL and HPGL, free evaluation version available
  • WEBPlotter - HP-GL/2 and HP-GL plugin
  • xpdf: a PDF viewer for X

Conversion utilities

Programmable logic software

Circuit design and analysis software

  • AIM-Spice - a new Windows version of SPICE, free student version available
  • AKNM Circuit magic - Software to show user circuit calculation by Kirchhoff's laws, Node Voltage and Mesh Current methods.
  • AnaSoft Spice Analog Simulation with Schematic Capture - for Windows 95/98/NT, free beta version available
  • Aplac - electronics circuit simulation program, free demo version available, uses Spice component models, very suitable for RF simulation
  • atlc - Arbitrary Transmission Line Calculator (for electrical transmission lines) - atlc is a computer aided design (CAD) package for the design and analysis of electrical transmission lines and directional couplers of totally arbitrary cross section. 'atlc' can handle any cross section and any number of different dielectrics. It's also possible to analyse 3 conductor lines (directional couplers). The software is free, open-source and for Unix or GNU/Linux machines. It is not really interended for Windoze machines.
  • Bode Diagrams - Windows application for Bode's diagrams drawing and analysis. It allows to trace and to print the Bode diagrams, both asymptotic and true, and the analysis (zeros, poles, stabilization to open and closed ring, reaction, regulation, project and verification of control systems). The departure function can be expressed in whichever format, also mixed.
  • CAD-Migos Software Tools - SPICE-IT! for Windows, WYSIWYG schematic editor and mixed-mode Spice-compatible simulation system, free demo available
  • Circuit Magic - Symbolic circuits analysis software to simulate AC/DC circuits using Kirchhoffs laws, Node Voltage and Mesh currents. Circuit Magic allows you to design, simulate and learn about electrical circuits. This is commercial software with limited free demo available.
  • Dolphin Integration SMASH - Mixed-signal analog and logic simulation software
  • DSP Design Performance - site which contains a set of Java applets which may be freely used to design digital filters of many types, including high-Q notch filters, fractional-sample time delay filters and comb filters, in addition to the more traditional low-pass, high-pass, band-pass and band-stop filters, differentiators and Hilbert transformers
  • eCircuit Center - A free source of SPICE circuit files and tutorials for the hands-on learning of electronic circuits. Circuits you can design, test and modify using the SPICE simulator: Opamps, filters, sensors, PID controllers, etc.
  • eSketch circuit simulation software - new linear simulator with schematic capture - free 30 day trial
  • Filter Wiz - Active filter design package, free demo version downloadable
  • ICAP/4 - Analog & Mixed Signal Simulation Software, free Windows demo version available
  • Intusoft Magnetics Designer Transformer, Inductor and Choke Design Software - free demo available
  • LTspice/SwitcherCAD III - LTC SwitcherCAD. III is a fully functional Spice III simulator with enhancements and models for easing the simulation of switching regulators. This Spice is a high performance circuit simulator, integrated waveform viewer, which also includes schematic capture. Small, easy to learn, GUI version of Spice. Works perfectly on Wine emulator under Linux as well!
  • OpFil passive filter designer - resistor values and pole-zero locations are masked in the unregistered version
  • Orcad DesignLab Evaluation Download
  • TuneKit for Windows - design tuned LC circuits and coils
  • Mentor Graphics - company which makes a wide selection of electronics design software
  • Micro-Cap - electronics circuit simulation, free demo version available
  • Oulun Yliopisto Elektroniikan Laboratio - free software for electronics design: VHDL filter design, pole-zero demo, MOS calculator
  • Programs in Circuits Archive - Pspice
  • PSpice and Related CAD Packages FAQ
  • PSU Designer II - designed to help you with the design of simple linear (unregulated) mains power supplies, as often found in tube amplifiers
  • SpiceCreator - a popular 32-bit analog, digital, mixed signal circuit design and simulation program, free demo version available
  • The Iowa Logic Specification Language - logic description language and simulator developed between 1983 and 1988
  • VisualSpice - Electronic Circuit Design and Simulation Software from Island Logix Products, demo available
  • Webench - on-line tools for PLL simulation, power electronics design and thermanl design
  • Westbay Compufilt 2 - Line Interference Analysis. EMI Suppression Filter Modelling. Feedthrough Filter Modelling.

Calculators

  • MiscEl - program to handle many different simple electronic calculations. This includes: ohms law, dB, charge curves, Wires, Fan cooling, PCB, color codes, thermo sensors, leds circuit, Fo, Serial/Paralle of R/C/L, and some more. The program is free to download and use, but the program is timelocked. A new version will have to be downloaded after about 1/2 year.

Circuit and Component databases

  • Compact 74xxx databook - pinlayout, the connectionlayout, an functiontable and the most important specifications available for most important 7400 series ICs
  • PartMiner - FREE Software for Windows 95, 98, NT to search the internet for electronic components
  • Semiconductor Cross Reference Library - program that will search through it's database (47,000 devices on this demo version) and it will give you a short description of the component

Misc software