Digital Electronics Series
OR Gate in Digital Electronics
Logic Operation, Truth Table & Practical Uses
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The OR gate is a primary digital logic gate that performs logical addition. It is designed to output a HIGH signal if at least one of its inputs is HIGH.
01 Truth Table (2-Input)
| Input A | Input B | Output Y (A + B) |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
Boolean Expression
Y = A + B
Applications
Interrupts
Combining multiple status signals into one CPU flag.
Combining
Merging control lines for multiple driver sources.
Alarms
Triggering logic if any sensor detects an anomaly.