74AHC1G02QW5-7

Overview

The 74AHC1G02QW5-7 is a single two-input positive NOR gate from Diodes Incorporated, designed for automotive applications with AEC-Q100 Grade 1 qualification. It operates within a supply voltage range of 2.0V to 5.5V and features Schmitt trigger inputs for noise tolerance. The device provides balanced propagation delays and drive capability, with output currents up to ±8mA at 4.5V. It includes ESD protection exceeding 2000V HBM and 1000V CDM. Packaged in SOT25 (W5), it supports ambient temperatures from -40°C to +125°C.

Feature Summary

• Automotive Grade 1 qualification with extended temperature operation
• Schmitt trigger inputs enhance circuit tolerance for slow signal transitions
• High ESD protection ratings ensure robustness against electrostatic discharge
• Totally lead-free and RoHS compliant construction

Applications

• Automotive logic circuits within Grade 1 temperature range
• Industrial computing and control systems
• High reliability networking and communications equipment
• Industrial and agricultural automation equipment

Procurement Notes

Verify the specific package variant matches the design requirement, as the Q suffix denotes AEC-Q100 qualification while the W5 suffix indicates the SOT25 package. Confirm that the application environment stays within the specified -40°C to +125°C operating range. Ensure input signals do not exceed the absolute maximum ratings to prevent damage. Check for any specific PPAP requirements if used in regulated automotive supply chains.

Selection Notes

Select this component when a single NOR gate function is required in space-constrained designs using the SOT25 package. It is suitable for systems needing high noise immunity due to Schmitt trigger inputs. Consider this part for automotive projects requiring AEC-Q100 compliance. Verify that the 2.0V to 5.5V supply range aligns with the system power architecture and that the output drive current meets the load requirements.

Part Context

This device belongs to the 74AHC logic family, characterized by high-speed CMOS technology and wide supply voltage compatibility. The 1G designation indicates a single gate per package, optimizing board space. The Q suffix signifies adherence to automotive quality standards, distinguishing it from standard commercial grade parts. It complements other 74AHC series components for complex logic implementations.

Replacement Considerations

Check for direct equivalents such as the 74AHC1G02SE-7, which shares identical electrical characteristics but utilizes the SOT353 package. Ensure pinout compatibility between SOT25 and alternative packages before substitution. Verify that any replacement maintains the same AEC-Q100 Grade 1 qualification if automotive reliability is required.

FAQ

What is the Boolean function performed by this device?

The device performs the positive NOR function, where the output is high only when both inputs are low.

How does the Schmitt trigger action benefit the circuit?

It makes the circuit tolerant for slower input rise and fall times, improving noise immunity.

What is the maximum ESD protection rating for this component?

It exceeds 2000-V Human Body Model (HBM) and 1000-V Charged Device Model (CDM) protection levels.