Digital Electronics
- ·· 2 pages, 500 words Revised United Kingdom
- Harvard Revised 4 Refers
- (+44) 747755****
- 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.
the cover page, table of contents don’t need to be done as i can do them.
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
Solution 1
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
