Get Guided ECET 105 Week 7 Homework and Lab
ECET 105 Week 7 Homework Assignment # 7
1. Sketch the Q output for the waveforms shown. Assume that Q starts LOW.
1. Sketch the Q output for the circuit shown below. Assume that Q starts LOW.
1. Sketch the Q output for the circuit shown below. Assume that Q starts LOW.
2. Sketch the Q output for the circuit shown below. Assume that Q starts LOW.
3. Sketch the Q output for the circuit shown below. Assume that Q starts LOW.
4. Sketch the Q output for the circuit shown below. Assume that Q starts LOW.
1. Sketch the Q output for the circuit shown below. Assume that Q starts LOW.
2. Sketch the Q0 and Q1 outputs for the circuit shown below. Assume that both Q0 and Q1 start LOW.
1. What is the output frequency for Q1 in the circuit shown below?
1. What is the output frequency for Q2 in the circuit shown below?
ECET-105 Week 7 Lab: Flip-Flops and Enhanced Adder-Subtractor
I. OBJECTIVES
1. To test the operation of a 74LS74 D flip-flop and compare the operation with the predicted behavior
2. To test the operation of a 74LS112 J-K flip-flop and compare the operation with the predicted behavior
3. To measure propagation delays of a 74LS112 J-K flip-flop
4. To build and test an enhanced adder-subtractor
II. PARTS LIST
I. PROCEDURE
A. Test the 74LS74 D Flip-Flop
B. Test the74LS112 J-K Flip-Flop
C. Enhanced Adder-Subtractor
IV. Questions:
1. Why is the condition when both and are LOW considered illegal?
1. How do the values you measured for tPHL and tPLHcompare with values specified in the 74LS112 data sheet? You may need to go online to find this value.
1. Why were the LEDs removed before making the propagation delay measurements?
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