SN74LS02NG4

Inverter Gates Overview

The SN74LS02NG4 is a quadruple 2-input positive-NOR gate integrated circuit manufactured by Texas Instruments. It belongs to the 74LS logic family and utilizes Low-Power Schottky technology for improved speed and power consumption characteristics compared to standard LS devices. The device features four independent NOR gates, each with two inputs, housed in a 14-pin Plastic Dual In-Line Package (PDIP). It operates within a supply voltage range of 4.75 V to 5.25 V and supports a low-level output current of 8 mA. The component is designed for commercial temperature operation ranging from 0°C to 70°C.

Inverter Gates Feature Summary

• Integrates four independent 2-input NOR logic functions within a single package
• Utilizes Low-Power Schottky technology to balance switching speed and power dissipation
• Provides standardized TTL-compatible input and output voltage levels
• Features robust output drive capability suitable for interfacing with multiple loads

Inverter Gates Applications

• Digital logic circuits requiring OR-AND implementations
• Address decoding systems in microprocessor-based designs
• Control logic for industrial automation interfaces
• General-purpose Boolean logic operations in embedded systems

Inverter Gates Procurement Notes

Verify the complete part number including the G4 suffix to confirm lead-free and RoHS compliance status as specified by Texas Instruments. Ensure the packaging type matches the required assembly method, as the NG4 designation typically indicates a tube or tray configuration for through-hole mounting. Cross-reference the manufacturer's latest datasheet for any updates on pinout configurations or recommended operating conditions before finalizing procurement specifications.

Inverter Gates Selection Notes

Select this component when a design requires multiple NOR gates with moderate speed and standard TTL compatibility. The SN74LS02NG4 is appropriate for applications where power consumption must be lower than standard 7400 series devices but higher performance than 74L series parts is needed. Consider the PDIP package constraints for board space and verify that the 8 mA sink current meets the load requirements of the connected circuitry.

Inverter Gates Part Context

The SN74LS02 is part of the widely adopted 7400-series logic family, specifically the Low-Power Schottky (LS) subset. This family was developed to offer better performance than the original 7400 series while maintaining pin-out compatibility. The 'G4' suffix denotes environmental compliance, indicating the absence of specific hazardous substances in accordance with international standards. This component serves as a fundamental building block for complex digital logic architectures.

Inverter Gates Replacement Considerations

Compatible substitutes include the SN74LS02N and SN74LS02D for equivalent logical functionality. Other manufacturers produce pin-compatible variants such as the MC74LS02 or HD74LS02. Verify that alternative sources maintain the same LS logic family characteristics and voltage specifications to ensure seamless integration without circuit modification.