# CESC 222-Digital Circuit Design

CESC 222-Digital Circuit Design

## Assignment 1

Review Section 11.2 Set-Reset Latches and Flip-Flops in Fundamentals of Logic Design, 7th Edition, (Roth, Jr. and Kinney, 2014), p. 338-342. Then build an S-R latch in SimUaid, using NOR gates as in the figure. Place switches on the inputs and probes on the outputs. Experiment with it. Describe in words the behavior of your S-R latch so that it is understandable by nontechnical personnel that do not have a digital circuit design or computer engineering background. Submit a schematic of your circuit from SimUaid and your one-paragraph description of your latch.

Please work on this assignment as promptly as possible because other students are depending on your work to complete their assignment.

### Assignment 2

Review Section 11.3 Gated Latches in Fundamentals of Logic Design, 7th Edition, (Roth, Jr. and Kinney, 2014), p. 342-345. Then build a gated D latch in SimUaid. See the figure. Work with a student assigned by your instructor that is working on Assignment 1 to obtain their design and description of the S-R latch you need for your gated D latch. Place switches on the inputs and probes on the outputs. Experiment with it. Describe in words the behavior of your S-R latch so that it is understandable by nontechnical personnel that do not have a digital circuit design or computer engineering background. Submit a schematic of your circuit from SimUaid and a paragraph description of your latch. Also, provide the name of the student from which you obtained the S-R latch design and information. Use the Module 7 Discussion Board to communicate with the student who is providing the S-R latch design. If the student providing your S-R latch design is struggling with the assignment, you may need to provide some assistance in building the S-R latch.

### Assignment 3

Review Section 11.4 Edge-Triggered D Flip-Flop in Fundamentals of Logic Design, 7th Edition, (Roth, Jr. and Kinney, 2014), p. 346-348. Then experiment with a D flip-flop in SimUaid. Use the D flip-flop on the parts menu. Place switches on the inputs and probes on the outputs. Describe in words the behavior of your D flip-flop so that it is understandable by nontechnical personnel that do not have a digital circuit design or computer engineering background. Submit a schematic of your circuit from SimUaid and your one-paragraph description of your flip-flop.

Please work on this assignment as promptly as possible because other students are depending on your work to complete their assignment.

### Assignment 4

Review Section 11.7 T Flip-Flop in Fundamentals of Logic Design, 7th Edition, (Roth, Jr. and Kinney, 2014), p. 351-352. Then construct a T flip-flop in SimUaid as in the figure. Work with a student assigned by your instructor that is working on Assignment 3 to obtain their design and description of the D flip-flop you need for your T flip-flop. Place switches on the inputs and probes on the outputs. Experiment with it. Describe in words the behavior of your T flip-flop so that it is understandable by nontechnical personnel that do not have a digital circuit design or computer engineering background. Submit a schematic of your circuit from SimUaid and your one-paragraph description of your flip-flop. Also, provide the name of the student from which you obtained the D flip-flop design and information. Use the Module 7 Discussion Board to communicate with the student that is providing the D flip-flop design. If the student providing the D flip-flop design is struggling with the assignment, you may need to provide some assistance in building their D flip-flop.