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NOT gate: The CMOS NOT design is detailed in the following figure. Recall that the pMOS switch is good at passing logic signal '1', while nMOS switches are good at passing logic signal '0'. Theory: The structure of a CMOS logic gate is based on complementary networks of n-channel and p-channel MOS circuits. Objectives: The objective of this experiment is to implement NOT, NAND, NOR gate using DSCH and Microwind. Palette:Įxperiment No: 02 Experiment Name: Design a CMOS NOT, NAND, NOR gate using simulator DSCH and show its layout using Microwind. Observe the change of VDD and the slow down of the oscillating frequency. By default the software is configured with 0.25μm technology. The electric extraction of circuit is automatically performed and the analog simulator produces voltage and current curves immediately.įigure: Microwind2 user interface. We gain access to circuit simulation by pressing one single key. Microwind includes all the commands for a mask editor as well as original tools never gathered before in a single module. The package contains a library of common logic and analog ICs to view and simulate.

Microwind Software: The Microwind program allows to design and simulate an integrated circuit at physical description level.  Click on the Run Tab on the Tool bar menu to start the simulation or using the command  Simulate > Start Simulation.  Save the design as “Lab05” using the command File > Save as. How to simulate:  Select the foundry using the command File > Select Foundry Select 0.25-micron process by selecting “cmos025.tec” file. Following figure shows the DSCH user interface.įigure: DSCH3 user interface. DSCH also includes an interface to SPICE. DSCH also features the symbols, models and assembly support for 8051 and 18f64. Some techniques for low power design are described in the manual. DSCH provides a user-friendly environment for hierarchical logic design, and fast simulation with delay analysis, which allows the design and validation of complex logic structures. DSCH is used to validate the architecture of the logic circuit before the microelectronics design is started. The DSCH program is a logic editor and simulator. With the help of this software one can implement digital circuits at its basic gate primitives or at its transistor level.

It also includes delay and power consumption evaluation. Based on primitives, a hierarchical circuit can be built and simulated. Theory: DSCH Software: DSCH is a software for logic design.

 To know about how to work as DSCH and microwind software symbols. Objectives:  To know about DSCH and microwind Software. Experiment No: 01 Experiment Name: Introduction to DSCH and Microwind Software.