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Demo: Composite Gates |
Certain logic functions can be realized very efficiently by CMOS gates as composite gates. Typical examples of composite gates are combinations of AND-OR-INVERT and OR-AND-INVERT gates, where the function may be complex. In this applet, the AOI32 gate is considered:
The composite gate realizes the function using 10 transistors only. Note that the N-type and P-type paths in this gate are complementary. P-type transistors connected in series correspond to N-type transistors connected in parallel, and vice versa: