Answer:
Step-by-step explanation:
Truth Table for Common Cathode 7-segment Hex decoder
PRESENT STATE NEXT STATE COMMON CATHODE
SEVEN SEGMENT
# S3 S2 S1 S0 S3+ S2+ S1+ S0+ g f e d c b a
0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1
1 0 0 0 1 0 0 1 0 0 0 0 0 1 1 0
2 0 0 1 0 0 0 1 1 1 0 1 1 0 1 1
3 0 0 1 1 0 1 0 0 1 0 0 1 1 1 1
4 0 1 0 0 0 1 0 1 1 1 0 0 1 1 0
5 0 1 0 1 0 1 1 0 1 1 0 1 1 0 1
6 0 1 1 0 0 1 1 1 1 1 1 1 1 0 1
7 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1
8 1 0 0 0 1 0 0 1 1 1 1 1 1 1 1
9 1 0 0 1 1 0 1 0 1 1 0 1 1 1 1
A 1 0 1 0 1 0 1 1 1 0 1 1 1 1 1
B 1 0 1 1 1 1 0 0 1 1 1 1 1 0 0
C 1 1 0 0 1 1 0 1 0 1 1 1 0 0 1
D 1 1 0 1 1 1 1 0 1 0 1 1 1 1 0
E 1 1 1 0 1 1 1 1 1 1 1 1 0 0 1
F 1 1 1 1 0 0 0 0 1 1 1 0 0 0 1
K Maps for Boolean expression is attached