Dld

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Dld

  1. 1. FLIP FLOP
  2. 2. Introduction aboutFlip FlopFarwa Tahira11014156-018
  3. 3. Logic circuits are classified into two groups:Combinational logic circuitsSequential logic circuitsBasic buildingblocks include:Basic building blocksinclude FLIP-FLOPS:LOGIC CIRCUITSLogic gates make decisionsFlip Flops have memory
  4. 4. FLIP FLOP Flip-flops and latches are used as data storage elements. Flip-flops can be either simple or clocked the simple ones are commonlycalled latches. The word latch is mainly used for storage elements,while clocked devices are described as flip-flops
  5. 5. Types of Flip FlopAbu Ali11014156-002
  6. 6. TYPES OF FLIP FLOP There are four types of flip flop.1. SR flip flop2. D flip flop3. Jk flip flop4. T(toggle) flip flop
  7. 7. SR FLIP FLOPSR QQSR LatchSymbol
  8. 8. SR LATCHES
  9. 9. S’R’ LATCH
  10. 10. D - Flip FlopMuhammad Haseeb Nasir11014156-047
  11. 11. D - FLIP FLOPThe D flip-flop tracks the input, making transitions withmatch those of the input D. The D stands for "data";D QFFCLK Q__DataInputclockOutputLogic symbol• 2 inputs clock and data• 2 out put normal and complementnormalcomplement
  12. 12. WIRING DIAGRAM OF D- FLIP FLOP• Comprised of 4 NAND gatesD-Flip Flop also known as Data Flip Flop and Delay Flip Flop
  13. 13. Jk Flip FlopZain ul Abdeen11014156-027
  14. 14. WHAT IS A JK FLIP-FLOP? A flip-flop is a circuit that has two stablestates and can be used to store stateinformation. The flip-flop can be made to change stateby signals applied to one or more controlinputs and will have one or two outputs.
  15. 15. JK TERMINOLOGY/STRUCTUREHas 5 inputs named:J(set)K(reset)Has 2 outputs:Q and Q’Set: when it stores a binary 1Cleared (reset): when it stores a binary 0PR = PresetCLR = ClearCLK = Clock
  16. 16. TRUTH TABLE OF J K FLIP FLOPSJ K Operation1 0 Set0 1 Reset0 0 Unchanged1 1 Complement
  17. 17. DIAGRAM OF J K FLIP FLOPSCreated from D flip flopD = JQ’+K’QJ=1 & K=0Flip flop is SETJ=0 & K=1Flip flop is RESETJ=1 & K=1Output is ComplementedJ=0 & K=0Output unchanged
  18. 18. T Flip FlopAdeel Zafar11014156-038
  19. 19. T (TOGGLE) FLIP FLOPDefinationToggle flip-flop. The output alternates with each input signal change. Tosimulate a T flip-flop, you can simply connect a D flip-flops complementaryoutput Q with its inputSymbol
  20. 20. T (TOGGLE) FLIP FLOPT Flip Flop Characteristic TableT Q Q+ Operation0 0 0 Hold0 1 1 Hold1 0 1 Toggle1 1 0 ToggleThe T flip flop characteristic table has 3columns. The first column is the value of T,a control input. The second column isthe current state, that is the current valuebeing output by Q.
  21. 21. Thank You

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