Encoders & Decoders

1. Exploring the components of a circuit
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2. Section : A
ID : 232-35-016
Reduan Ahmad

3. • Encoders
• Decoders
• Importance in digital electronics

4. An encoder is a device
that converts data from
one format to another.
A decoder is a logic
circuit that converts
coded inputs into
coded outputs.

5. Digital electronics are more important than analog
electronics because they are more accurate, reliable,
and energy efficient. Digital signals are less capable to
noise and interference, making them more reliable in
transmission mediums like satellite TV and cell phone
networks. Digital data is also more compact and less
likely to be corrupted, making it easier to store and
maintain over time.

6. Section : A
ID : 232-35-003
Md. Abdullah Al Noman

8. Decimal to BCD
Encoder
There are many types of Encoders
Octal To Binary
Encoder
Hexadecimal to
Binary Encoder
4 to 2 Encoder

9. It converts Decimal Number (0-9)
input to BCD Output.

11. The logical expression of the
term A0, A1, A2, and A3 is as
follows:
A3 = Y9 + Y8
A2 = Y7 + Y6 + Y5 +Y4
A1 = Y7 + Y6 + Y3 +Y2
A0 = Y9 + Y7 +Y5 +Y3 + Y1

12. Section : A
ID : 232-35-214
Asraful Alam

14. A
B
C
A Binary-to-Octal decoder has three input
lines and eight output lines. When a 3-bit
input code is applied to the decoder, one of the
8 output lines corresponding to that input
code is activated. This decoder is also called a
3-line-to-8-line decoder or 1-of-8 decoder. Its
truth table is given below.

16. D0
D1
D2
D3
D4
D5
D6
D7
C
A B
If the input is A = B = C = 0(LOW) Output D0
will be HIGH. So, the output expression for
D0 = A’B’C’ Similarly,
2. D1 =A’B’C . 3. D2 =A’BC’.
4. D3 = A’BC. 5. D4 =AB’C’.
6. D5 =AB’C . 7. D6 =ABC’ .
8. D7 = ABC

17. Section : A
ID : 232-35-022
Mohammad Ali Nayeem

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21. The Future of Encoders and Decoders
• As technology advances, so too will the
complexity and sophistication of the
encoding and decoding schemes
employed.
• Look for continued innovation in areas
like error correction, data compression,
and encryption, as we strive to achieve
faster, more reliable, and more secure
communication and data storage
systems.

22. THANK YOU!
FOR YOUR TIME