SN74HC21DT

Inverter Gates Overview

The SN74HC21DT is a Texas Instruments automotive-grade dual 4-input positive-AND gate from the SN74HC21-Q1 family. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range of -40°C to +85°C. The device utilizes high-speed CMOS technology, providing low static power consumption and robust noise immunity. It is housed in a 14-pin SOIC surface-mount package designed for automated assembly processes.

Inverter Gates Feature Summary

• Automotive catalog qualification ensuring reliability for vehicle electronics
• High-speed CMOS operation with low power dissipation
• Dual independent 4-input AND logic functions

Inverter Gates Applications

• Automotive electronic control units
• Digital logic signal processing
• Input gating in embedded systems

Inverter Gates Procurement Notes

Verify the specific suffix 'DT' against the manufacturer's official ordering information to confirm the tape-and-reel packaging configuration and ensure it matches the required reel size for your manufacturing line. Confirm that the automotive catalog designation aligns with your project's quality standards before finalizing procurement.

Inverter Gates Selection Notes

Select this component when designing circuits requiring automotive-grade reliability and dual 4-input AND functionality. Ensure the design accommodates the specified 2V to 6V supply voltage range and verify that the 14-pin SOIC footprint fits the PCB layout constraints. Consider thermal management requirements based on the -40°C to +85°C operating temperature specification.

Inverter Gates Part Context

This part belongs to the SN74HC21-Q1 series, which represents Texas Instruments' automotive-qualified version of the standard 74HC21 logic gate. The series is designed to meet stringent automotive industry standards for durability and performance under varying environmental conditions, distinguishing it from commercial-grade counterparts.

Inverter Gates Replacement Considerations

Check for SN74HC21DRE4 or SN74HC21DRG4 as potential equivalents with different packaging or lead-free specifications. Verify pin compatibility and electrical characteristics against the original datasheet before substitution.