School of Computer and Communication Engineering, UniMAP Mohd ridzuan mohd nor 019-3806067 1 DKT 122/3 - DIGITAL SYSTEM I Chapter.

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School of Computer and Communication Engineering, UniMAP Mohd ridzuan mohd nor DKT 122/3 - DIGITAL SYSTEM I Chapter 3: Logic Gates

School of Computer and Communication Engineering, UniMAP LOGIC GATES Inverter (Gate Not) AND Gate OR Gate NAND Gate NOR Gate Exclusive-OR and Exclusive-NOR Fixed-function logic: IC Gates Three basic logic gates AND Gate – expressed by “. “ OR Gates – expressed by “ + “ sign (not an ordinary addition) NOT Gate – expressed by “ ‘ “ or “¯”

School of Computer and Communication Engineering, UniMAP 3 NOT Gate (Inverter) a) Gate Symbol & Boolean Equation b) Truth Table (Jadual Kebenaran) c) Timing Diagram (Rajah Pemasaan)

School of Computer and Communication Engineering, UniMAP 4 OR Gate a) Gate Symbol & Boolean Equation b) Truth Table (Jadual Kebenaran) c) Timing Diagram (Rajah Pemasaan)

School of Computer and Communication Engineering, UniMAP 5 AND Gate a) Gate Symbol & Boolean Equation b) Truth Table (Jadual Kebenaran) c) Timing Diagram (Rajah Pemasaan)

School of Computer and Communication Engineering, UniMAP 6 NAND Gate a) Gate Symbol, Boolean Equation a) Gate Symbol, Boolean Equation & Truth Table b) Timing Diagram

School of Computer and Communication Engineering, UniMAP 7 NOR Gate a) Gate Symbol, Boolean Equation a) Gate Symbol, Boolean Equation & Truth Table b) Timing Diagram

School of Computer and Communication Engineering, UniMAP 8 Exclusive-OR Gate a) Gate Symbol, Boolean Equation a) Gate Symbol, Boolean Equation & Truth Table b) Timing Diagram

School of Computer and Communication Engineering, UniMAP 9 Examples : Logic Gates IC NOT gate AND gate Note : x is referring to family/technology (eg : AS/ALS/HCT/AC etc.)

School of Computer and Communication Engineering, UniMAP 10 Q & A