高速数字电路（英文）c07

高速数字电路（英文）c07
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Sequential
Logic Design Principles

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ogic circuits are classified into two types, “combinational” and


L “sequential.” A combinational logic circuit is one whose outputs
depend only on its current inputs. The rotary channel selector knob
on an old-fashioned TV is like a combinational circuit―its


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“output” selects a channel based only on its current “input”―the position of
the knob.
A sequential logic circuit is one whose outputs depend not only on its
current