SN74LS21NS

Inverter Gates Overview

The SN74LS21NS is a dual 4-input positive-AND gate integrated circuit manufactured by Texas Instruments. It belongs to the 74LS logic family and operates within a supply voltage range of 4.75 V to 5.25 V. The device contains two independent AND gates, each with four inputs. It is characterized for operation over an ambient temperature range of 0°C to 70°C. The component utilizes a 14-pin Small Outline (SO) surface-mount package.

Inverter Gates Feature Summary

• Contains two independent 4-input positive-AND logic gates
• Operates on standard 5V TTL-compatible power supplies
• Designed for commercial temperature environments

Inverter Gates Applications

• Digital logic circuit design
• Signal gating applications
• Computer peripheral interface circuits

Inverter Gates Procurement Notes

Verify the specific suffix 'NS' against official Texas Instruments documentation to confirm the exact package type and tape-and-reel specifications. Ensure the ordering part number matches the required pin configuration and manufacturing revision before procurement.

Inverter Gates Selection Notes

Select this component when dual 4-input AND functionality is required in a compact surface-mount form factor. Confirm that the 74LS series propagation delay and drive current meet the system timing requirements compared to faster or higher-drive alternatives.

Inverter Gates Part Context

This part is part of the widely used 74LS (Low-power Schottky) series of digital logic ICs. These components are designed for compatibility with standard Transistor-Transistor Logic (TTL) systems, providing a balance between speed and power consumption for general-purpose digital applications.

Inverter Gates Replacement Considerations

Compatible substitutes include other manufacturers' equivalents such as the MC74LS21P or DM74LS21N. Verify pinout compatibility and electrical characteristics before substituting.