Digital Electronics Series
AND Gate in Digital Electronics
Truth Table, Working & Applications in VLSI Design
The AND gate is a fundamental digital logic gate that performs logical multiplication. It operates on the principle that it produces a HIGH output only when all inputs are simultaneously HIGH.
01 Truth Table (2-Input)
| Input A | Input B | Output Y (A · B) |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
Boolean Expression
Y = A \cdot B
Key Points
- Used in enable logic and control circuits.
- Commonly implemented using CMOS NAND structures (NAND + Inverter).
- Basic building block in Arithmetic Logic Units (ALU).
Applications
-
Address decoding
-
Conditional logic
-
Digital control systems