Complete Guide to Logic Gates
NOR Logic Gate (Integrated Circuit 7402/74LS02)
The 7402 integrated circuit is a 2-input NOR logic gate (OR + NOT). The output is high (1) only if both inputs are low (0). It is a universal gate like NAND.
Datasheet and Pin Diagram
The datasheet provides crucial technical information about this integrated circuit, including pin diagram, electrical characteristics and package information.
The 7402 NOR Gate is a fundamental component in digital electronics. Its configuration is 2 inputs and 1 output. Its operation is based on the logic function Output.
Boolean Function
Output = NOT (A OR B)This mathematical expression defines how the output (Y or Q) of the 7402 NOR Gate depends on its inputs (A, B, etc.).
Applications
- Flip-flops
- Universal logic gate
- Level detectors
This integrated circuit is used in various digital logic applications and embedded systems.
Truth Table
The truth table illustrates the output of the 7402 NOR Gate for each possible combination of its logic inputs.
| Input A | Input B | output |
|---|---|---|
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 0 |
Technical Specifications
General Information
2 inputs / 1 output
2 inputs and 1 output
Electrical Characteristics
4.75V - 5.25V
20mA
15ns typ
0掳C to 70掳C
Package Information
DIP-14
0.1" (2.54mm)
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Additional Information
To deepen your understanding of the 7402 NOR Gate, you can consult additional resources on Boolean algebra and digital circuit design. Experimenting with circuit simulators or building physical circuits will help you consolidate your understanding.