Lab 7- EE 421L 

Using buses and arrays in the design of word inverters, muxes, and high–speed adders

Authored by Victor Martinez

martiv6@unlv.nevada.edu

November 3, 2018 

Pre-lab work



 Lab description:

Schematic for 4 bit inverter
SchematicSymbol

Simulation of 4-bit Inverter4-bit inverter Plot

Schematics and Symbols for 8-bit: AND, inverter, NAND, NOR and OR

AND SchematicAND Symbol

Inverter SchematicInverter Symbol


NAND SchematicNAND Symbol

NOR SchematicNOR Symbol

OR SchematicOR Symbol

8-bit Gates Schematic8-bit Gates Plots

2-to-1 MUX Schematic2-to-1 Mux Symbol
The 2-to-1 MUX output is defined as Z=A*S + B*Si and its inputs are A, B, S, and Si.  It allows one of the two inputs to be passed to Z when selected by S.  If the input at A is to be passed to Z then we set 1 to S and 0 to Si.
2-to-1 MUX Schematic2-to-1 MUX Schematic Plot

2-to-1 DEMUX Schematic2-to-1 DEMUX Plots
The 2-to-1 DEMUX output is defined as Z*S =A and Z*Si=B.  It allows one input to be passed to two outputs A and B when selected by S.  If the input to Z is to be passed to A then we set 1 to S and 0 to Si.
8-bit 2-to-1 DEMUX/MUX Schematic8-bit 2-to-1 DEMUX/MUX Symbol

Simulate 8-bit 2-to-1 DEMUX/MUX8-bit 2-to-1 DEMUX/MUX Plot

Full Adder Schematics and Layout

Full Adder SchematicFull Adder Symbol

8-bit Full Adder Schematic8-bit Full Adder Symbol

Simulate 8-bit Full Adder8-bit Full Adder Plots

Full Adder LayoutFull Adder DRC
Full Adder LVSFull Adder Extracted

8-bit Full Adder Layout8-bit Full Adder DRC
8-bit Full Adder LVS8-bit Full Adder Extracted

Backing up Work

    Zipping up lab work and uploading on google drive

 

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