SN74LS02DG4

Inverter Gates Overview

The SN74LS02DG4 is a quad 2-input positive-NOR gate manufactured by Texas Instruments. It utilizes Low-power Schottky (LS) bipolar technology and operates within a supply voltage range of 4.75 V to 5.25 V. The device features a maximum low-level output current of 16 mA and a high-level output current of -0.4 mA. Propagation delay ranges from 10 ns to 50 ns, with a typical value around 19 ns at 5 V. It is housed in a 14-pin SOIC package and supports an operating temperature range of 0 °C to 70 °C.

Inverter Gates Feature Summary

• Integrates four independent 2-input NOR logic gates within a single package.
• Employs Low-power Schottky technology for reduced power consumption while maintaining standard TTL speed compatibility.
• Features push-pull outputs capable of driving multiple LS TTL loads.

Inverter Gates Applications

• General-purpose digital logic circuits requiring NOR functionality.
• Data processing systems utilizing standard 5V logic levels.
• Industrial control applications compatible with the commercial temperature range.

Inverter Gates Procurement Notes

Verify the specific suffix 'DG4' indicates lead-free construction and RoHS compliance as per manufacturer specifications. Confirm the package variant matches the required surface-mount footprint. Ensure the sourcing channel provides official datasheets confirming the active status and electrical parameters for this specific revision.

Inverter Gates Selection Notes

Select this component when a quad NOR configuration is required in a compact surface-mount format. It serves as a direct replacement for non-green SN74LS02D variants where environmental compliance is mandatory. Consider propagation delay requirements against the 10-50 ns range before implementation in high-speed timing-critical designs.

Inverter Gates Part Context

This part belongs to the Texas Instruments SN74LS series, which offers a balance between power efficiency and switching speed compared to standard TTL. The SN74LS02 family provides essential NOR logic functions widely used in legacy and modern mixed-signal systems. The DG4 designation specifically identifies the lead-free SOIC-14 package variant.

Inverter Gates Replacement Considerations

SN74LS02DR: Standard tape-and-reel version of the same logic function and package type. SN74LS02D: Original non-green SOIC-14 variant with identical electrical characteristics but different material composition.