An octal to binary encoder is a digital circuit that takes an octal (base-8) number as input on 8 lines and outputs the corresponding 3-bit binary number. It works by using a truth table and logical expressions to relate each octal digit to a combination of the 3 binary output lines, allowing conversion from octal to binary. The encoder is implemented as a circuit using logic gates to perform this conversion physically.

1. Octal to Binary
Encoder
Pritam Maity
11611212
B47

2. Presentation Outline

3. Encoding
• An encoder is a digit circuit that performs the inverse
operation of a decoder. An encoder has 2n (or less) input
lines and n output lines. An encoder is the octal – to –
binary encoder.
• It has eight inputs, one for each of the octal digits, and
three outputs that generate the corresponding binary
number.

4. ALGORITHMS
TRUTH TABLE LOGICAL EXPRESSION
A 2 = D 4 + D 5 + D 6 + D 7
A 1 = D 2 + D 3 + D 6 + D 7
A 0 = D 1 + D 3 + D 5 + D 7

5. ALGORITHMS ( L o g i c a l d i a g r a m )

6. IMPLENTING CIRCUIT

7. IMPLENTING CIRCUIT