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SN74LS02DR is listed in the Inverter Gates range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC GATE NOR 4CH 2-INP 14SOIC. Review the specifications below when checking this part for your BOM.
The SN74LS02DR is a quadruple 2-input positive-NOR gate manufactured by Texas Instruments. It utilizes Low-power Schottky (LS) TTL technology and is housed in a 14-pin SOIC surface-mount package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a commercial temperature range of 0°C to +70°C. Key electrical characteristics include a maximum low-level output current of 8 mA, a high-level output current of -0.4 mA, and a typical propagation delay of 15 ns at 5 V with a 15 pF load.
Verify the specific suffix against official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the 14-SOIC form factor. Confirm that the intended application environment remains within the specified 0°C to +70°C operational limits. Validate supply voltage requirements align with the 4.75 V to 5.25 V range before integration.
Select this component when Low-power Schottky performance is required for NOR logic applications. It serves as a direct replacement for other SN74LS02 variants sharing the same logical function and pinout. Consider the SOIC package constraints regarding board space and thermal dissipation. Verify input/output voltage levels match the system's TTL standards to ensure reliable signal integrity.
This part belongs to the Texas Instruments SN74LS series, which provides Low-power Schottky TTL logic functions. The SN74LS02 specifically implements the NOR logic function, offering four independent gates per package. This series is widely recognized for its balance between power efficiency and speed in digital electronics.
Compatible substitutes include SN74LS02N and SN74LS02D, provided they maintain identical logical functionality and pin configurations. Cross-reference datasheets to verify equivalent electrical parameters and package dimensions before substitution.
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