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Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 1 Digital Fundamentals.

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Presentation on theme: "Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 1 Digital Fundamentals."— Presentation transcript:

1 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 1 Digital Fundamentals CHAPTER 7 Latches, Flip-Flops and Timers

2 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 2 Latches

3 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 3 Latches S-R (Set-Reset) latchS-R (Set-Reset) latch Gated S-R latchGated S-R latch Gated D latchGated D latch

4 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 4 Latches S-R latchS-R latch

5 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 5 Latches S-R latch S-R latch

6 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 6 Latches Gated S-R latchGated S-R latch

7 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 7 Latches Gated D latchGated D latch

8 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 8 Edge-Triggered Flip-Flops Edge-Triggered Flip-Flops

9 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 9 Edge-Triggered Flip-Flops Edge-triggered S-R flip-flopEdge-triggered S-R flip-flop Edge-triggered D flip-flopEdge-triggered D flip-flop Edge-triggered J-K flip-flopEdge-triggered J-K flip-flop

10 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 10 Edge-Triggered Flip-Flops Edge-triggered S-R flip-flopEdge-triggered S-R flip-flopWaveforms

11 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 11 Edge-Triggered Flip-Flops Edge-triggered S-R flip-flopEdge-triggered S-R flip-flop

12 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 12 Edge-Triggered Flip-Flops Edge-triggered D flip-flopEdge-triggered D flip-flopWaveforms

13 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 13 Edge-Triggered Flip-Flops Edge-triggered D flip-flopEdge-triggered D flip-flop

14 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 14 Edge-Triggered Flip-Flops Edge-triggered J-K flip-flopEdge-triggered J-K flip-flopWaveforms

15 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 15 Edge-Triggered Flip-Flops Edge-triggered J-K flip-flopEdge-triggered J-K flip-flop

16 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 16 Flip-Flop Operating Characteristics

17 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 17 Flip-Flop Operating Characteristics Propagation delay timesPropagation delay times Set-up timeSet-up time Hold timeHold time Maximum clock frequencyMaximum clock frequency Pulse widthsPulse widths Power dissipationPower dissipation

18 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 18 Flip-Flop Applications

19 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 19 Flip-Flop Applications Parallel data storageParallel data storage Frequency divisionFrequency division CountingCounting

20 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 20 Flip-Flop Applications Parallel data storageParallel data storage

21 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 21 Flip-Flop Applications Frequency divisionFrequency division

22 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 22 Flip-Flop Applications CountingCounting

23 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 23 One-Shots

24 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 24 One-Shots Nonretriggerable one-shotNonretriggerable one-shot Regriggerable one-shotRegriggerable one-shot

25 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 25 One-Shots Nonretriggerable one-shotNonretriggerable one-shot

26 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 26 One-Shots Nonretriggerable one-shotNonretriggerable one-shot

27 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 27 One-Shots Regriggerable one-shotRegriggerable one-shot

28 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 28 One-Shots Regriggerable one-shotRegriggerable one-shot

29 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 29 The 555 Timer

30 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 30 The 555 Timer Monostable (one-shot) operationMonostable (one-shot) operation Astable operationAstable operation

31 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 31 The 555 Timer Monostable (one-shot) operationMonostable (one-shot) operation t w =1.1R 1 C 1

32 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 32 The 555 Timer Astable operationAstable operation

33 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 33 CPLD Macrocells (Altera or Xilinx)

34 Floyd Digital Fundamentals, 9/e Copyright ©2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Slide 34 CPLD Macrocells (Altera or Xilinx) The Altera MAX 7000 macrocellThe Altera MAX 7000 macrocell The Xilinx CoolRunner-II macrocellThe Xilinx CoolRunner-II macrocell

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