We will learn in this chapter the hazards that are present in a logic circuit when two inputs
change due to a single logic variable. We will also learn about pulse mode sequential cir-
cuits. Hazard means a source of trouble or risk.
OBJECTIVE
CHAPTER 19
We learnt in Chapter 18 the following important points:
1.A general asynchronous sequential circuit is a circuit in which there are no control(s)
for the instance(s) at which the output(s) change like a control by a clocked instance
in synchronous sequential circuit.
2.The circuit has a section consisting of the (i) combinational circuits at the input and
output ...
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