Sequential circuits use memory elements, hence output
patterns depend both on input patterns and the memory of
history of events. An example of combinational logic circuit
is a seven segment display decoder CD4511 and and example for
a sequential logic circuit is CD4029 up-down counter.
This gate ORs the two inputs A and B, The Output is high if either A OR B is high. There may be a OR gate with many inputs, if one or more inputs are high then the output will be high. AND and OR gates can be wired with Diode logic.
to try out the demo of the gates below.
The Gate is a digital component that is used to compute an
output for certain inputs, the inputs and outputs have two
states high-1 and low- 0. Let us assume high is 5V and low is 0V
(like in CMOS). On a high level the LED will light up and on a
low level the LED is off. Now let us see what Logic means.
30th Aug 2020
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