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EE40 Notes with Professor Pinto Lecture 1
Today’s Chips: Moore’s Law
Gordon Moore, 1965
Number of transistor
per square inch
doubles
approximately
every18 months
üImplications
üCost
per device halves every 18 months
üMore
transistors on the same area, more complex and
powerful chips
üFuture
chips are very hard to design!!!
üFabrication
cost is becoming prohibitive
üEncoded
by two voltage levels
ü +1.5
V
→
1
,
0 V
→
0
üBoolean
Algebra:
üVariables
can take
Digital Representation of
Logic Functions
values 0 or 1 (true or false)
üOperators
on variables:
üa
AND
b
a·b
üa
OR
b
a+b
üNOT
b
b
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