In electronics cascading means connecting two stages back to back that o/p of 1st stage connected to the i/p of the second stage. If we talk Particularly about 4 bit comparator ic 7485 ,it compares only 4 bit but in our 8 bit comparator practical we need to compare 8 bit so we need two ICS and we have to do cascading so that if the first stage “overflows” that data cascades into the next stage. In short we do cascading to have more than 4 bits to compare.
In our ic trainer kit we have 12 inputs but we require 16 so for the remaining 4 inputs, we have connected them to gnd. So we made them a fixed input n that is zero zero. So u can do like wise. You can connect remaining 8 inputs to either gnd or VCC.
in my university exam if they ask "Use the appropriate circuits of formal logic to design a size comparator of 8-bits numbers." your video is the solution?
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What is meaning of cascading input?
In electronics cascading means connecting two stages back to back that o/p of 1st stage connected to the i/p of the second stage. If we talk Particularly about 4 bit comparator ic 7485 ,it compares only 4 bit but in our 8 bit comparator practical we need to compare 8 bit so we need two ICS and we have to do cascading so that if the first stage “overflows” that data cascades into the next stage. In short we do cascading to have more than 4 bits to compare.
In our digital ic trainer kit have only 8 input section then what to do
In our ic trainer kit we have 12 inputs but we require 16 so for the remaining 4 inputs, we have connected them to gnd. So we made them a fixed input n that is zero zero. So u can do like wise. You can connect remaining 8 inputs to either gnd or VCC.
in my university exam if they ask "Use the appropriate circuits of formal logic to design
a size comparator of 8-bits numbers." your video is the solution?
Depends. If you had to create it using this particular IC or U can assume this IC