Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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32. The flip-flop in Figure 7-92 | is tested under all input conditions as shown. Is it operating properly? If not,
what is the most likely fault?
+V
HULL
-
Figure 7-92
K
ப
bc
K
m
I
(d)
+V
+V
K
J
C
6 0
DC
K
Transcribed Image Text:32. The flip-flop in Figure 7-92 | is tested under all input conditions as shown. Is it operating properly? If not, what is the most likely fault? +V HULL - Figure 7-92 K ப bc K m I (d) +V +V K J C 6 0 DC K
Expert Solution
Step 1

No the JK flip-flop is not working properly

a) When J=1; K=1 , the FF is in toggle state. So the output toggles between 0 and 1 during every rising edge of the clock

b) When J=1; K=0 , the FF is in set state.  So the output of the FF stays at 1

c) When J=0; K=0 , the FF is in no change state. So the output of the FF must have remained at its initial value which is 0 in this case. Rather the output is getting set.

d) When J=0; K=1 , the FF is in reset state. The output of the FF is supposed to stay at 0 but it toggles between 1 and 0

 

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