Chapter Resources: Chapter Assignments
Chapter 7 - Flip-Flops

1. Refer to the simple modes of operation of a flip-flop demonstrated on the web site courses.ncsu.edu:8020/ece480/common/htdocs, Digital Logic/Flip-Flop section.
   1. The D flip-flop is commonly used in the ___ (toggle, data) mode.
   2. The J-K flip-flop is very commonly used in the ___ (toggle, data) mode.
   3. The R-S flip-flop is commonly used in the ___ (toggle, reset/set) mode.
      
2. Refer to Fig. 7-1 (below). What mode of operation is the J-K flip-flop in this diagram? Describe the action at output Q on each clock pulse.
   
   
3. Define flip-flop. (use http://www.onelook.com or other electronics dictionary)
   
4. Refer to Fig. 7-2 (below). Using Electronics Workbench® circuit simulation software, determine the truth table for this R-S flip-flop. It will look something like Table 7-1, Digital Electronics, 6th.ed. on page 216.
   
   
5. Refer to Fig. 7-3 (below). Using Electronics Workbench® circuit simulation software, determine the truth table for this J-K flip-flop. It will look something like the table in Fig. 7-14(b), Digital Electronics, 6th.ed. on page 223.
   
   
6. Refer to Fig. 7-4 (below). Using Electronics Workbench® circuit simulation software,
   1. determine what type of flip-flop this simulates (RS, Clocked RS, D or J-K flip- flop),
   2. demonstrate the circuit to your instructor.
      
      
7. Refer to Fig. 7-5 (below). Using Electronics Workbench® circuit simulation software,
   1. determine what type of flip-flop this simulates (RS, Clocked RS, D or J-K flip- flop),
   2. demonstrate the circuit to your instructor.