Digital Electronics - Combinational Logic Circuits - Discussion
Discussion Forum : Combinational Logic Circuits - General Questions (Q.No. 12)
12.
How many 1-of-16 decoders are required for decoding a 7-bit binary number?
Discussion:
11 comments Page 2 of 2.
Selva said:
7 years ago
The Number of decoders which are used only 9.
We need 1 to 16 decoders of 8 and the 3 to 8 decoders of 1. So total 9.
They have asked 1 to 16 decoders so 8.
The input lines is 7 and the output line is 128.
we are having 1 to 16 decoder so 128/16 =8.
And another one for enabling all the 8 decoders. So, we want 3 to 8 decoder.
We need 1 to 16 decoders of 8 and the 3 to 8 decoders of 1. So total 9.
They have asked 1 to 16 decoders so 8.
The input lines is 7 and the output line is 128.
we are having 1 to 16 decoder so 128/16 =8.
And another one for enabling all the 8 decoders. So, we want 3 to 8 decoder.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers