74AHCT125BQ-Q100,1

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHCT125BQ-Q100,1 is a quad buffer and line driver featuring three-state outputs controlled by active-low enable inputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device utilizes the DHVQFN14 package (SOT762-1) with dimensions of 2.5 mm x 3 mm x 0.85 mm. Inputs are overvoltage tolerant up to 5.5 V, enabling translation in mixed-voltage environments. Propagation delay reaches a maximum of 9.5 ns at 5.5 V with a 50 pF load.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for high reliability.
• Overvoltage tolerant inputs allow safe interfacing across different voltage domains.
• Schmitt-trigger action on all inputs ensures noise immunity and clean signal transitions.
• Three-state outputs provide high-impedance OFF-states when disabled.

Buffers, Drivers, Receivers, Transceivers Applications

• Engine control units
• Body control modules
• Transmission control units

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the automotive grade designation aligns with project reliability requirements. Ensure input voltage levels correspond to TTL logic thresholds as specified for the AHCT series. Validate thermal management strategies for the DHVQFN14 package under maximum operating conditions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS performance characteristics. The DHVQFN14 package offers a compact footprint suitable for space-constrained automotive designs. Consider the overvoltage tolerance feature if interfacing directly with higher voltage buses without external level shifters.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHC_AHCT125-Q100 family of quad buffers. It shares functional compatibility with other variants in the series but differs in package type and specific electrical characteristics defined by the AHCT logic family. The BQ suffix specifically denotes the leadless DHVQFN package configuration.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include 74AHC125BQ-Q100 for CMOS input levels or 74AHCT125D-Q100 for SO14 packaging. Verify pinout compatibility and electrical specifications before substitution.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the function of the nOE input?

The nOE input controls the three-state output. A HIGH level on nOE causes the outputs to assume a high-impedance OFF-state.

Are the inputs compatible with TTL logic levels?

Yes, the 74AHCT125BQ-Q100 features TTL input switching levels, making it compatible with standard TTL logic families.