Difference between revisions of "CSC270 Homework 4 2012"

From dftwiki3
Jump to: navigation, search
(Created page with "--~~~~ ---- <bluebox> This assignment is due on 2/29/12 at 1:10 p.m. </bluebox> <br /> <br /> =Problem #1= Can one build an RS flip-flop using one NAND and one NOR, wired toget...")
 
(Problem #2)
Line 18: Line 18:
 
</center>
 
</center>
 
<br />
 
<br />
Given the circuit above, which uses 74LS74 D flip-flops, complete the timing diagram below and show how Q1, Q2 and Q3 behave as a function of time.
+
Given the circuit above, which uses 74LS74 D flip-flops, complete the timing diagram below and show how Q0, Q1 and Q2 behave as a function of time.
 
<br />
 
<br />
 
<center>[[Image:CSC270TimingDiagramDClock.png|500px]]
 
<center>[[Image:CSC270TimingDiagramDClock.png|500px]]

Revision as of 17:24, 22 February 2012

--D. Thiebaut 17:23, 22 February 2012 (EST)


This assignment is due on 2/29/12 at 1:10 p.m.



Problem #1

Can one build an RS flip-flop using one NAND and one NOR, wired together in a feedback loop, similar to the NAND-NAND or NOR-NOR RS flip-flop?

Why, or why not?

Problem #2

3DFlipFlopsSimple.png


Given the circuit above, which uses 74LS74 D flip-flops, complete the timing diagram below and show how Q0, Q1 and Q2 behave as a function of time.

CSC270TimingDiagramDClock.png