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A flip-flop or latch is a circuit that has two stable states and can be used to store state information.

1 vote
3 answers
2k views

Is D flip flop can be combination circuit?

I read that circuits are two type combinational and sequential. In combinational circuit the output depends on present state/input i.e the previous state do not effect the present output. but D flip f …
SW.'s user avatar
  • 358
1 vote
0 answers
1k views

what is the approach to design edge triggered d flip flop? [closed]

i know the circuit. I implement it using verilog and it giving result correct. like when we have to design any digital circuit we draw truth table. Optimize circuit using K-map and then implement. In …
SW.'s user avatar
  • 358
1 vote
2 answers
3k views

How to design a left shift register

I want a circuit in which I get the following sequence: 0001, 0010, 0100, 1000, 0001 I know that it's 4-bit shift register. But what is my approach to design this circuit?
SW.'s user avatar
  • 358
0 votes

Can someone explain the following flip-flop circuit?

When ever S bar and Q bar are 1. then the present Q did not change i mean Q(t)= Q(t+1). When S(bar)=0 then Q=1 and when R(bar)=0 then Q= 0
SW.'s user avatar
  • 358
6 votes
2 answers
4k views

why in some circuit there is use of bubble followed by bar?

It is a circuit of ring counter. The clock here is negative triggered. but for set and clear it use bubble with bar.What is the need of bubble followed by bar. why it can not use a PRE and CLR (with …
SW.'s user avatar
  • 358