# Digital Assignment its About Simulation in Multisim-85591

Digital Electronics

• ··  2 pages, 500 words Revised United Kingdom
• Harvard Revised 4 Refers
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• Jun 15, 2015 | Monday 02:35 pm | 43 days ago

Hi i failed my digital assignment its about simulation in Multisim, its a software we use, and the assignment must be done using multism.

i have attached the referral new assignment, we have to solve for the output of ‘d’ in the new assignment,

i also attached the old one which i failed, it has useful comment which will help getting the new one done.

thanks

## Design Problem

A display driver Integrated Circuit (IC) for a seven-segment LCD display can be seen below in Figure 1.

Solution

 A B C D A b c d e f g Display 0 0 0 0 1 1 1 1 1 1 0 “0” 0 0 0 1 0 1 1 0 0 0 0 “1” 0 0 1 0 1 1 0 1 1 0 1 “2” 0 0 1 1 1 1 1 1 0 0 1 “3” 0 1 0 0 0 1 1 0 0 1 1 “4” 0 1 0 1 1 0 1 1 0 1 1 “5” 0 1 1 0 1 0 1 1 1 1 1 “6” 0 1 1 1 1 1 1 0 0 0 0 “7” 1 0 0 0 1 1 1 1 1 1 1 “8” 1 0 0 1 1 1 1 1 0 1 1 “9”

Table 1 – Truth table for 4 input, 7 output display driver IC

## Using truth table

Using D morgan in 1st and 2nd term

Using D morgan in 1st and 2nd term

## Solution 2

Here d is don’t care condition

For red 1

For red 2

For green

For blue

Combining all

Solution 3

Circuit

Truth table

## Solution 4

K-MAP for SOP

Here d is don’t care condition

For red 1

For red 2

For green

For blue

Combining all

Solution 5

K-MAP for maxterms

Here d is don’t care condition

For red

For green

For blue

Combining all

For maxterms

Solution 6

Min term circuit is best