LOGIC GATES, TYPES AND THEIR TRUTH TABLES.
- 1. UNDERSTANDING LOGIC GATES IN DIGITAL CIRCUITS Solving with tables
- 3. Exploring Logic Gates: Types- • AND GATE • OR GATE • NOT GATE • NAND GATE • NOR GATE • XOR GATE • XNOR GATE
- 4. Definition: • An AND gate with n inputs (usually 2) outputs a 1 (high) only if all its n inputs are 1 (high). • In simpler terms, it acts like a "both AND" condition. Imagine two switches connected in series for a light to turn on. The light will only turn on if both switches are turned on (both inputs are 1), mimicking the AND gate's functionality. AND GATE TRUTH TABLE
- 5. OR GATE • An OR gate with n inputs (usually 2) outputs a 1 (high) if at least one of its n inputs is 1 (high). • In simpler terms, it functions like an "one OR the other" condition. Imagine two switches wired in parallel to a light bulb. If either switch is turned on (one input is 1), the light will be illuminated, reflecting the OR gate's behavior. TRUTH TABLE
- 6. NOT GATE • Function: Inverts the binary input. • Input: It has only one input, which can be either 0 (low) or 1 (high). • Output: The output is always the opposite of the input. If the input is 0 (low), the output will be 1 (high), and vice versa. Imagine a light switch. A NOT gate acts like a switch that flips the state of the incoming signal. TRUTH TABLE
- 7. NAND GATE • Function: Inverts the binary input. • Input: It has only one input, which can be either 0 (low) or 1 (high). • Output: The output is always the opposite of the input. If the input is 0 (low), the output will be 1 (high), and vice versa. Imagine a light switch. A NOT gate acts like a switch that flips the state of the incoming signal. TRUTH TABLE
- 8. NOR GATE Function: • A NOR gate with n inputs (usually 2) outputs a 1 (high) only if all its n inputs are 0 (low). It acts like a "none OR" condition. Imagine two switches wired in parallel to a light bulb. If both switches are off (all inputs are 0), the light will be off (output is 1), according to the NOR gate's logic. TRUTH TABLE
- 9. XOR GATE Function: • A NOR gate with n inputs (usually 2) outputs a 1 (high) only if all its n inputs are 0 (low). It acts like a "none OR" condition. Imagine two switches wired in parallel to a light bulb. If both switches are off (all inputs are 0), the light will be off (output is 1), according to the NOR gate's logic. TRUTH TABLE
- 10. XNOR GATE Function: • A NOR gate with n inputs (usually 2) outputs a 1 (high) only if all its n inputs are 0 (low). It acts like a "none OR" condition. Imagine two switches wired in parallel to a light bulb. If both switches are off (all inputs are 0), the light will be off (output is 1), according to the NOR gate's logic. TRUTH TABLE
- 11. KEY TAKEAWAYS AND CONCLUSION In essence, logic gates are the fundamental building blocks that enable digital circuits to process information and make decisions based on binary logic. Their versatility and ability to be combined in complex ways make them essential for the vast array of digital technologies we rely on today.
- 12. Thank you for diving into logic gates!