An LED or Light Emitting Diode, is a solid state optical p n-junction diode which emits light energy in the form of photons.

1. NIBRAS, SHAMIT
ID:19-40117-1
COURSE: DIGITAL LOGIC AND CIRCUITS
SECTION: E
DEPARTMENT: COMPUTER SCIENCE AND ENGINEERING
AMERICAN INTERNATIONAL UNIVERSITY-BANGLADESH

2. DecoderForACommonCathode7-segment
Display(7DAB9)

4. What is common cathode 7 segment display
▪ An LED or Light Emitting Diode, is a solid
state optical p n-junction diode which emits
light energy in the form of photons.

5. Truth Table

7. K-MAP FOR PIN A

8. K-MAP FOR PIN C

9. K-MAP FOR PIN D

10. Logical Circuit For The Function Of The Pin A
y = 1

11. We can’t Easily Draw Logical Circuit For The
Function Of The Pin A, Because group equation is
Y=1

12. Logical Circuit For The Function Of The Pin C
y = 1

13. We can’t Easily Draw Logical Circuit For The
Function Of The Pin C, Because group equation is
Y=1

14. Logical Circuit For The Function Of The Pin D
y = C + A

15. C
A
Y