74AHCT74BQ-Q100X

Overview

The Nexperia 74AHCT74BQ-Q100X is a dual D-type flip-flop with separate clock inputs, manufactured by Nexperia. It belongs to the AHCT logic series and utilizes a DHVQFN-14 (SOT762) surface-mount package. The component is qualified under the AEC-Q100 standard for Grade 1 automotive applications. It operates within a supply voltage range of 2.0 V to 5.5 V and supports a wide operating temperature range from -40 °C to +125 °C. The device features balanced propagation delays and high noise immunity.

Feature Summary

• Dual D-type flip-flops with independent clock inputs
• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• TTL-compatible input levels via AHCT technology
• High noise immunity and low power dissipation

Applications

• Automotive electronic systems requiring robust logic control
• Data storage and register circuits in vehicle modules
• Timing and synchronization applications in harsh environments

Procurement Notes

Verify the specific ordering suffix against official Nexperia documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the AEC-Q100 Grade 1 qualification aligns with target automotive reliability requirements. Cross-reference the DHVQFN-14 footprint dimensions during PCB layout to prevent assembly errors. Ensure thermal management strategies account for the specified maximum junction temperature limits.

Selection Notes

Select this component when TTL-compatible logic levels are required alongside CMOS performance characteristics. The AHCT series ensures compatibility with legacy LSTTL interfaces while offering improved speed. Consider the DHVQFN-14 package for space-constrained designs requiring high pin density. Validate that the operating temperature range meets the environmental conditions of the intended application environment.

Part Context

This part is a member of the Nexperia 74AHCT family, designed to bridge the gap between older TTL logic families and modern CMOS technologies. The Q100 designation indicates compliance with automotive electronics council standards, ensuring suitability for demanding vehicular environments. The BQ suffix denotes the specific DHVQFN surface-mount package variant.

Replacement Considerations

The 74HC74BQ-Q100 is a related HC-series alternative; however, it requires CMOS-level input voltages rather than TTL levels. Verify logic level compatibility before substitution. Other variants within the 74AHCT74 family may offer different packaging options but maintain identical electrical functionality.