View
256
Download
1
Tags:
Embed Size (px)
Citation preview
Logic Gates
A Logic Gate and its Truth Table
A Logic Gate and its Truth Table
A Logic Gate and its Truth Table
A Logic Gate and its Truth Table
A Logic Gate and its Truth Table
A Logic Circuit
A Logic Circuit
F=AB’C+ABC+(C+D)(D’+E)=A(B’+B)C+CD’+CE+DD’+DE=
=AC+CD’+CE+DE=C(A+D’+E)+DE
To show that these two circuits have equivalent functions let us simplify the function F=AB’C+ABC+(C+D)(D’+E)
Additional Logic Gates Symbols
Completeness of NAND Logic Gates
Completeness of NOR Logic Gates
From Transistors to Logic Gates
From Transistors to Logic Gates
De Morgan’s Laws
Two complementary laws yield equivalent functions:
(ABC)’=A’+B’+C’
(A+B+C)’=A’B’C’