Digital Fundamentals (11th Edition)
11th Edition
ISBN: 9780132737968
Author: Thomas L. Floyd
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 20P
Typically a manufacturer’s data sheet specifies four different propagation delay times associated with a flip-flop. Name and describe each one.
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2. Draw the timing diagram for the Clocked SR flip-flop at each of the instants t0 to t6 as described in the class meeting.
a. at t0, Q is low, S is low, R is low
b. at t0, Q is high, S is low, R is low
Be sure to include the clock signal in the timing diagram.
True or false: When a JK flip-flop is constructed from an SR flip-flop, S = JQ′ and R = KQ.
Q 1:- for the state diagram shown below, connect the circuit using J-K
Flip-Flop.
0/0
1/0
1/0
00
01
0/0
0/1
11
10
0/1
1/0
1/0
Chapter 7 Solutions
Digital Fundamentals (11th Edition)
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- A sequential circuit counts from 0 to 255 using JK flip-flop. If the propagation delay of each flip flop is 50 ns, the maximum clock frequency that can be used is MHzarrow_forwardA J-K flip-flop with J = 1 and K = 1 has a 10 kHz clock input. The Q output is(a) constantly HIGH (b) constantly LOW(c) a 10 kHz square wave (d) a 5 kHz square wavearrow_forwardDesign a 3-bit synchronous counter using D-flip flop that has the counting sequence shown in Fig. 6 (c). Unused states S5 101 S6 110 S4 011 S7 111 000 S3 100 S1 001 Main sequence ofo Fig. 6 (c)arrow_forward
- The State diagram is shown in figure. Use T Flip-flop to design the sequential circuit. | 1/0 001 0/0 1/0 100 (011 0/0 1/1 0/0 0/0 1/1 010 1/1 000 0/0arrow_forwardJK flip-flops, also colloquially known as jump/kill flip-flops, augment the behaviour of SR flip-flops. The letters J and K were presumably picked by Eldred Nelson in a patent application. The sequential digital circuit shown below shows the design of a JK flip-flop based on two SR NAND latches. Assume the circuit's output is Q = 0 and that the inputs are J = 0 and K = 0, and that the clock input is C = 0. (You can make use of the fact that we already know how an SR NAND latch behaves.) D Co D Ko a) Suppose J transitions to 1 and C' transitions to 1 soon after. Create a copy of the drawing and indicate for each line whether it carries a 0 or a 1. b) Some time later, C transitions back to 0 and soon after J transitions to 0 as well. Create another copy of the drawing and indicate for each line whether it carries a 0 or a 1. c) Some time later, J and K both transition to 1 and C transitions to 1 soon after. Create another copy of the drawing and indicate for each line whether it carries…arrow_forwardexplain GA-Based Clock-Timing Adjustmentarrow_forward
- In digital electronics and modern computer hardware, a flip-flop is sequential digital circuit used as a basic memory element. It has two stable states and can be used to store state information. One of its states represents ‘1’ while the other represents ‘0’. The most common types of flip-flops are SR-flip-flop, JK-flip-flop, and D flip-flop. When used in a finite-state machine, the output and next state depend not only on its current input, but also on its current state (and hence, previous inputs).arrow_forwardThe following figure shows a sequential circuit with one D Flip Flop with acommon input clock (C). Assume that the flip flop is initialized at ‘0’. That is, Z = 0 during Cycle 0. This means the output of this circuit is initially 0. Compute the value of the output signal (Z) for 10 cycles using the table below.arrow_forwardIn digital electronics and modern computer hardware, a flip-flop is sequential digital circuit used as a basic memory element. It has two stable states and can be used to store state information. One of its states represents ‘1’ while the other represents ‘0’. The most common types of flip-flops are SR-flip-flop, JK-flip-flop, and D flip-flop. When used in a finite-state machine, the output and next state depend not only on its current input, but also on its current state (and hence, previous inputs). Figure 1 D-Flip-flop with clock pulse (CP) Figure 1 shows a D flip-flop with clock pulse (CP). D is directly passed from stage1 to stage 2 through NAND gate and passed as inverted through gate 5 and gate 4. The input D is always sampled when the system CP is 1. Considering the memory element in Figure 1, perform the following tasks: Design FSM for the Figure 1 Simulate the Figure 1 using C. Write 400 words report on shift and…arrow_forward
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