Sheet#3
1. The sequence 1011 is applied to the input of a 4-bit serial shift register that is
initially cleared. What is the state of the shift register after three clock pulses?
2. For the data input and clock given in the following figure, determine the

LATCHES, FLIP-FLOPS, AND TIMERS
10. A one-shot is a type of
(a) monostable multivibrator (b) astable multivibrator (c) timer
(1) answers (a) and (c) (e) answers (b) and (c)
11. The output pulse width of a nonretriggerable one—shot depends on
(a) the t

Session 6
Automatic control Theory
Dr. Saber Abdrabbo
Sequence 6.9
Compensation techniques
Preview: Last Sequences covered
Ziegler Nichols Design methods of
PID controllers and structures of
digital PID controllers
Present: Current sequence covers
design

Sequential Digital Circuits
Dr. Costas Kyriacou and Dr. Konstantinos Tatas
Sequential Digital Circuits
Sequential circuits are digital circuits in which the outputs
depend not only on the current inputs, but also on the previous
state of the output.
The

Department of Computer Science
CSC132 - Digital Systems
Assignment 4
1.
Construct a 16X1 MUX with two 8 X 1 and one 2 X 1 MUXs.
2.
Use 2 8-input data selector/multiplexers to design a 1-bit full adder.
3.
An 8 X 1 MUX has inputs A, B and C connected to th

Sheet#1
1. Given the input waveforms in Figure applied to an active-HIGH S-R latch.
a. Draw output waveform Q.
b. Draw Q if the same input is applied to an active-Low S-R latch.
2. For a gated S-R latch. Determine the Q and Q outputs for the inputs in Fig

Sheet#4
1. For the ripple counter in the following figure, show the complete
timing diagram (clock,
QO,
Q1,
and
Q2 waveforms)
for
ten clock pulses.
2. For the counter in problem (1), assume that each flip-flop has a
propagation delay of 8 ns. Determine th

Sheet#2
1. A sequential circuit with two D flip-flops A and B, two inputs x and y, and one
output z is specified by the following next-state and output equations:
A (t + 1) = x'y + xB
B (t +1) = x'A + xB
z=A
(a)
Draw the logic diagram of the circuit.
(b)