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WorksheetsDigital Electronics Weekend Assignment 5
Total questions: 10
Worksheet time: 28mins
To realize the given truth table from the circuit shown in the figure, the input to J in terms of A and B would have to be
A'
B
(AB)'
A'B
Identify the type of the flip-flop
S-R flip flop
J-K flip flop
D flip flop
T flip flop
Consider the function F(a,b,c) = b'c' + bc + ab'. If you implement F by means of 4-to-1 multiplexer then what will be the values of p, q, r, s in the following figure.
c', c, 1, c
c, c', c, 0
1, 0, c, c'
c, c', 1, c'
The logic function f(A, B, C, D) implemented by the circuit shown below is
D' (A⊕C)
D'(A⊕B)
D(A⊙C)
D(A⊙B)
For the given multiplexer, Y is equal to
AC'D'+A'BC+A'D
AB'C'+AC'D'+A'D
A'B'C'+ACD'+A'D'
AC'D'+A'B'D+AD'
Consider the given circuit, if f(x,y,z) is Σ(0,3,5,7) then what will be the value of at I0 and I2 (respectively)?
Z', Z
Z', Z'
Z, Z
Z, Z'
Consider the circuit given. The minimized expression for F is
C'
I0
C
I0'
For the circuit shown in the following figure, I0 - I3 are inputs to the 4:1 MUX. R (MSB) and S are control bits.
The output Z can be represented by
PQ + PQ'S + Q'R'S'
PQ'+PQR'+P'Q'S'
PQ'R'+P'QR+PQRS+Q'R'S'
PQR'+PQRS'+PQ'R'S+Q'R'S'
A sequential circuit using D flip flop and logic gates is shown in figure where X and Y are the inputs and Z is the output. The circuit is
S-R FF with inputs X = R and Y = S
S-R FF with inputs X = S and Y = R
J-K FF with inputs X = J and Y = K
J-K FF with inputs X = K and Y = J
The clock frequency applied to the digital circuit shown in figure below is 1kHz, If the initial state of the output Q of the flip-flop is '0', then the frequency of the output waveform Q in kHz is
0.25
0.5
1
2
