Overview
The SN74LS02DR is a quad 2-input NOR gate integrated circuit (IC) manufactured by Texas Instruments. This IC belongs to the 74LS series of logic devices, which are widely used in digital electronics for their reliability and efficiency. The SN74LS02DR is designed for general-purpose logic applications and is particularly suited for use in systems requiring high-speed operation and low power consumption. Its compact design and robust performance make it a popular choice among engineers and hobbyists alike.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (VCC) | 4.75 to 5.25 | V | Standard operating range |
| High-Level Output Voltage (VOH) | 2.7 | V | Min, at IOH = -400 µA |
| Low-Level Output Voltage (VOL) | 0.5 | V | Max, at IOL = 8 mA |
| Propagation Delay Time (tpd) | 15 | ns | Typical, at VCC = 5 V |
| Power Dissipation (PD) | 10 | mW | Per gate, typical |
| Operating Temperature Range | 0 to 70 | °C | Commercial grade |
| Package Type | SOIC-14 | - | Surface mount |
Key Features
- Quad 2-input NOR gate functionality in a single IC.
- High-speed operation with a typical propagation delay of 15 ns.
- Low power consumption, making it suitable for battery-operated devices.
- Wide operating voltage range ensures compatibility with various digital systems.
- Compact SOIC-14 package for space-saving PCB designs.
Applications
The SN74LS02DR is versatile and finds applications in a wide range of digital systems. It is commonly used in:
- Industrial Automation: For logic control and signal processing in automated systems.
- Consumer Electronics: In devices such as calculators, digital clocks, and remote controls.
- Automotive Electronics: For control logic in vehicle systems.
- Telecommunications: In signal processing and data transmission equipment.
- Educational Projects: As a fundamental component in digital logic experiments and prototypes.
Q & A
1. What is the function of the SN74LS02DR?
The SN74LS02DR is a quad 2-input NOR gate IC, meaning it contains four independent NOR gates, each with two inputs.
2. What is the operating voltage range of the SN74LS02DR?
The operating voltage range is from 4.75 V to 5.25 V.
3. What is the typical propagation delay of the SN74LS02DR?
The typical propagation delay is 15 ns at a supply voltage of 5 V.
4. Can the SN74LS02DR be used in automotive applications?
Yes, it can be used in automotive electronics for control logic, provided the operating conditions are within the specified range.
5. What is the package type of the SN74LS02DR?
The SN74LS02DR comes in an SOIC-14 package, which is a surface-mount design.
6. Is the SN74LS02DR suitable for battery-operated devices?
Yes, due to its low power consumption, it is suitable for battery-operated devices.
7. What is the maximum low-level output voltage of the SN74LS02DR?
The maximum low-level output voltage is 0.5 V at an output current of 8 mA.
8. What is the minimum high-level output voltage of the SN74LS02DR?
The minimum high-level output voltage is 2.7 V at an output current of -400 µA.
9. Can the SN74LS02DR be used in industrial automation?
Yes, it is commonly used in industrial automation for logic control and signal processing.
10. What is the power dissipation per gate for the SN74LS02DR?
The typical power dissipation per gate is 10 mW.
