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What are universal gates and how many of them are there?

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naveen reddy

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What are universal gates
How many universal gates are there

can a multiplexer be used as a universal gate-
if yes how can we implement logic gates with it

pls help me in solving this issue
 

Re: universal gates

universe gate is the gate that can realize all digital logic.

such as multiplexer, two input nand gate, etc.

if a gate can realize and, or, not function,

then it is a universe gate.


best regards





naveen reddy said:
What are universal gates
How many universal gates are there

can a multiplexer be used as a universal gate-
if yes how can we implement logic gates with it

pls help me in solving this issue
Click to expand...
 

Re: universal gates

naveen reddy wrote
can a multiplexer be used as a universal gate-
if yes how can we implement logic gates with it

yes mux can be used as universal logic CIRCUIT

FOR EX. mux as a AND

use 2 x 1 mux
let A,B as two inputs for gate but for MUX make it as a select lines and connect 00,01,10 pins of mux to ground as well as 11 input of mux to +5v.


So,now depend upon your select logic 0 or logic 1 will be outputted.


NOTE:
JK flip flop can act as universal flip flop


Hope it helps
 

Re: universal gates

NAND and NOR GATE are called universal gate.because all other gates are constructed using them.
 

Re: universal gates

1. The NAND gate and the NOR gate are universal gates since combinations of them can be used to accomplish any of the basic operations and can thus produce an inverter , an OR or an AND gate. The non-inverting gates do not have this versatility since they can't produce an invert.

**broken link removed**

2. We can construct OR,AND and NOT gates using 2:1 MUX , it is a universal gate.
**broken link removed**
 

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