# How many 1 of decoder are required for decoding a 7 bit binary number?

## How many 1 of decoder are required for decoding a 7 bit binary number?

16 decoders
How many 1-of-16 decoders are required for decoding a 7-bit binary number?…Discussion :: Combinational Logic Circuits – General Questions (Q. No. 12)

[A]. 5
[C]. 7
[D]. 8

### How does binary decoder work?

A Binary Decoder converts coded inputs into coded outputs, where the input and output codes are different and decoders are available to “decode” either a Binary or BCD (8421 code) input pattern to typically a Decimal output code.

How many 16 decoders are required for decoding a 7 bit binary number?

Q. How many 1-of-16 decoders are required for decoding a 7-bit binary number?
B. 6
C. 7
D. 8

How do decoders work?

A decoder is a combinational logic circuit that is used to change the code into a set of signals. It is the reverse process of an encoder. A decoder circuit takes multiple inputs and gives multiple outputs. A decoder circuit takes binary data of ‘n’ inputs into ‘2^n’ unique output.

## How a decoder can be used as a demultiplexer?

A decoder with an enable input can function as a Demultiplexer. A demultiplexer is a circuit that receives information on a single line and transmits this information on one of 2n possible output lines. Selection of a specific output line is controlled by the bit values of n selection lines.

### What is the main purpose of the ripple blanking facility on some decoder ICS?

RBO = Ripple Blanking Output. It is used to Blank out the leading zeros and supposed to make it look more intelligent.

Why do we use binary decoder?

Where is a decoder used?

Amongst its many uses, a decoder is widely used to decode the particular memory location in the computer memory system. Decoders accept the address code generated by the CPU which is a combination of address bits for a specific location in the memory.

## How many inputs are needed for a 1/16 decoder?

Explanation: A binary decoder is a combinational logic circuit which decodes binary information from n-inputs to a maximum of 2n outputs. Here, number of outputs = 16. 16 = 24 = 2n. Thus, number of inputs is 4.

### What is basic binary decoder?

What is the purpose of a decoder?

A decoder is a device that generates the original signal as output from the coded input signal and converts n lines of input into 2n lines of output. An AND gate can be used as the basic decoding element because it produces a high output only when all inputs are high.

What is a 3 to 8 decoder?

A 3 to 8 decoder has three inputs (A,B,C) and eight outputs (DO to D7). Based on the 3 inputs one of the eight outputs is selected. From the truth table, it is seen that only one of eight outputs (DO to D7) is selected based on three select inputs. …

## What is the truth table for the 7-segment decoder design?

The truth table for the decoder design depends on the type of 7-segment display. As we mentioned above that for a common cathode seven-segment display, the output of decoder or segment driver must be active high in order to glow the segment. The figure below shows the truth table of a BCD to seven-segment decoder with common cathode display.

### What is BCD to seven segment decoder?

This BCD to seven segment decoder has four input lines (A, B, C and D) and 7 output lines (a, b, c, d, e, f and g), this output is given to seven segment LED display which displays the decimal number depending upon inputs. Truth Table – For common cathode type BCD to seven segment decoder:

What is a binary to decimal decoder?

A decoder is a combinational circuit which is used to convert a binary or BCD (Binary Coded Decimal) number to the corresponding decimal number . It can be a simple binary to decimal decoder or a BCD to 7 segment decoder.

What is the truth table for a priority encoder?

The truth table for a Priority Encoder is also shown below, here X represents no connection and ‘1’ represents logic high and ‘0’ represents logic low. Notice that the enable bit is 0 when there is no connection on the Input lines and hence the output lines will also remain zero. This way we will be able to overcome the above mentioned drawback.