Schematic Simulation Model for Proteus

Proteus is a design and simulation environment for single chip microcontroller application system.Simulation model is the basis for the design and simulation using Proteus.In practical application it′s necessary to create simulation model which hasn′t existed in the libraries but required by user himself sometimes and also its deeper application.This paper discusses thought and method of creating Proteus schematic simulation model based on the examples of creating 6-bit digital-analogy-converter and TTL7458,and how to save it into device libraries and to pick-up contrarily and how to validate.Finally validation proves the created models and method are correct.