SN74LS33D

Inverter Gates Overview

The SN74LS33D is a quad 2-input positive-NOR buffer manufactured by Texas Instruments, not onsemi. It belongs to the 74LS logic series and features open-collector outputs in a 14-SOIC package. Key electrical parameters include a low-level output current of 24 mA, a high-level output current of 250 uA, and a propagation delay of 20 ns. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a temperature range of 0°C to +70°C.

Inverter Gates Feature Summary

• Quad 2-input positive-NOR logic function
• Open-collector output configuration
• Low Power Schottky (LSTTL) technology

Inverter Gates Applications

• Digital logic buffering
• Signal gating applications
• Interface circuits requiring open-collector drive

Inverter Gates Procurement Notes

Verify manufacturer origin as the SN74LS33D is primarily associated with Texas Instruments. Confirm RoHS compliance status and check for end-of-life notices or product change notifications before procurement. Ensure the specific suffix matches the required packaging format.

Inverter Gates Selection Notes

Select this component when a quad NOR gate with open-collector outputs is required. Verify compatibility with LSTTL input levels and ensure the load can be driven by the specified 24 mA low-level sink current. Consider the 14-SOIC package constraints for PCB layout.

Inverter Gates Part Context

This part is part of the standard 74LS series of integrated circuits, widely used in digital electronics. The 'D' suffix indicates a surface-mount SOIC package. It provides a compact solution for implementing multiple NOR functions in a single chip.

Inverter Gates Replacement Considerations

• SN74LS33DR
• SN74LS33DG4