Latch and flip flops two latches latch can be

Info icon This preview shows pages 23–28. Sign up to view the full content.

View Full Document Right Arrow Icon
Latch and Flip-flops (two latches) Latch can be considered as a door CLK = 0, door is shut CLK = 1, door is unlocked A flip-flop is a two door entrance CLK = 1 CLK = 0 CLK = 1 23
Image of page 23

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
D Flip-Flop (Delay) D CLK Q Q’ Id D Q(t) Q(t+1) 0 0 0 0 1 0 1 0 2 1 0 1 3 1 1 1 Characteristic Expression Q(t+1) = D(t) 0 0 1 1 0 1 PS D 0 1 State table NS= Q(t+1) 24
Image of page 24
JK F-F J CLK Q Q’ 0 0 0 1 ? 1 1 0 1 ? PS JK 00 01 10 11 State table Q(t+1) K 25
Image of page 25

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
JK F-F J CLK Q Q’ Characteristic Expression Q(t+1) = Q(t)K’(t)+Q’(t)J(t) 0 0 0 1 1 1 1 0 1 0 PS JK 00 01 10 11 State table Q(t+1) K 26
Image of page 26
T CLK Q Q’ Characteristic Expression Q(t+1) = Q’(t)T(t) + Q(t)T’(t) 0 0 1 1 1 0 PS T 0 1 State table Q(t+1) T Flip-Flop (Toggle) 27
Image of page 27

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Using a JK F-F to implement a D and T F-F J K Q Q’ D CLK D flip flop J K Q Q’ T CLK T flip flop 28
Image of page 28
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern