SN74HC21QPWRG4Q1

Inverter Gates Overview

The SN74HC21QPWRG4Q1 is an automotive-grade dual four-input positive AND gate manufactured by Texas Instruments. It belongs to the SN74HC series of wide-spectrum CMOS logic devices, featuring standard CMOS outputs and compatibility with TTL inputs. The device operates within a supply voltage range of 2 V to 6 V and supports a maximum propagation delay of 11 ns. It provides low-level output current of 5.2 mA and high-level output current of -5.2 mA. Qualified under AEC-Q100 standards, it functions reliably across an extended temperature range from -40°C to +125°C.

Inverter Gates Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle applications
• Wide operating voltage range supporting 2 V to 6 V power supplies
• CMOS technology ensuring low static power consumption and high noise immunity
• TTL-compatible input levels facilitating integration with legacy digital systems

Inverter Gates Applications

• Automotive electronic control units requiring robust logic gating
• Digital signal processing interfaces in automotive environments
• Safety-critical system logic implementation
• General-purpose logic functions in harsh temperature conditions

Inverter Gates Procurement Notes

Verify the complete part number including suffixes such as G4 and Q1 to ensure correct packaging and automotive qualification status. Confirm that the specific variant matches the required AEC-Q100 grade and package type. Cross-reference official manufacturer documentation for any recent product change notices or lifecycle updates before finalizing procurement decisions.

Inverter Gates Selection Notes

Select this component when automotive certification is mandatory for logic gate applications. Ensure the design accommodates the specified 2 V to 6 V supply range and thermal requirements up to 125°C. Verify that the 11 ns propagation delay meets the timing constraints of the target circuit. Consider the TSSOP-14 package dimensions for PCB layout compatibility.

Inverter Gates Part Context

This device is part of the SN74HC family, which offers high-speed CMOS performance with TTL-compatible inputs. The 'Q1' suffix indicates automotive qualification, while 'G4' typically denotes lead-free and RoHS-compliant manufacturing processes. It serves as a specialized version of the standard SN74HC21 designed for demanding automotive environments.

Inverter Gates Replacement Considerations

Direct substitutes include other SN74HC21 variants with automotive qualification, such as SN74HC21QPWRE4Q1. Non-automotive equivalents like SN74HC21D or SN74HC21N lack the required AEC-Q100 certification and should only be considered if automotive compliance is not strictly necessary.