Now enhanced to handle some of the 2g6 specific statements.This sequential device loads the data present on its inputs and then moves or “shifts” it to its output once every clock cycle, hence the name Shift Register.Ī shift register basically consists of several single bit “D-Type Data Latches”, one for each data bit, either a logic “0” or a “1”, connected together in a serial type daisy-chain arrangement so that the output from one data latch becomes the input of the next latch and so on.ĭata bits may be fed in or out of a shift register serially, that is one after the other from either the left or the right direction, or all together at the same time in a parallel configuration. Winspice3 by Mike Smith : An excellent port to Windows 95/NT of the traditional SPICE 3f4 engine.
TopSpice by Penzar : "An affordable integrated computer-aided circuit design software package offering advanced native mixed-mode mixed-signal analog/digital/behavioral simulation based on the industry standard SPICE program." More news when I've checked their demo out (2mb).You can download an almost fully functional demo, limited by a 30 second run time (2 megs in size). SIMetrix : A UK developed simulator with schematic capture linked to spice 3.x.All of their tools are available on a CD which is sent free on request - this is a fully working suite limited to 60 components and some restrictions on the libraries Orcad : The makers of Pspice integrated schematic capture, simulation, and PCB routing suite.MicroCap 5 : Costs $3,495 although a student/demo version is available for download.Integrated PCB placement software now available too. Uses real world DMM's and Scopes to provide results of simulations.
Electronic Workbench : Very easy to use with package scaling for Personal, Student and Pro versions.EAGLE runs on Windows® 95, Windows NT®, Linux and MS-DOS®, and registered editions start at $49 which includes telephone tech support. Hobbyists edition available for non-commercial use, free of charge with a maximum board size of 100mm x 80mm with two layers. Includes auto-routing facility, and a large library of components.