SN74LS02DR2

Inverter Gates Overview

The SN74LS02DR2 is a quad 2-input NOR gate manufactured by onsemi, belonging to the 74LS logic family. It operates within a supply voltage range of 4.75 V to 5.25 V and features low-level output current of 8 mA and high-level output current of -400 µA. The device exhibits a typical propagation delay of 15 ns and functions reliably across an operating temperature range of 0°C to +70°C. Packaged in a 14-pin SOIC surface-mount configuration, it provides four independent NOR gates with two inputs each.

Inverter Gates Feature Summary

• Provides four independent 2-input NOR logic functions
• Compatible with standard 5V CMOS and TTL logic systems
• Designed for surface-mount assembly via SOIC-14 package

Inverter Gates Applications

• General-purpose digital logic circuit design
• Signal processing in embedded systems
• Industrial control logic interfaces

Inverter Gates Procurement Notes

Verify that the specific part number matches the LS series specifications rather than ACT or other variants. Confirm the package type is SOIC-14 and check RoHS compliance status. Ensure the supplier documentation explicitly references the 74LS logic family characteristics. Validate the operating temperature range requirements against your application environment before finalizing procurement.

Inverter Gates Selection Notes

Select this component when a standard quad 2-input NOR function is required in a surface-mount format. Consider the 74LS family speed and power consumption trade-offs compared to faster AC/LVC or lower power LVC alternatives. Ensure the 5V logic level compatibility aligns with the rest of the system architecture. Verify that the SOIC-14 footprint fits the PCB layout constraints.

Inverter Gates Part Context

This component belongs to the widely used 74xx series of logic ICs, specifically the Low-power Schottky (LS) variant. The SN74LS02DR2 designation indicates the manufacturer code, logic function, and tape-and-reel packaging style. It serves as a fundamental building block for combinational logic circuits in various electronic devices requiring reliable NOR gate functionality.

Inverter Gates Replacement Considerations

Direct substitutes include MC74LS02DR2G from onsemi or equivalent parts from Texas Instruments such as SN74LS02N. Verify pinout compatibility and electrical parameters like propagation delay and output drive strength. Ensure the replacement maintains the same 14-pin SOIC package dimensions for mechanical fit.