74AHCT245BQ-Q100X

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHCT245BQ-Q100X is an octal bus transceiver with 3-state outputs, designed for automotive applications under AEC-Q100 Grade 1 qualification. It operates within a supply voltage range of 2.0 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features TTL input levels, overvoltage tolerant inputs up to 5.5 V, and balanced propagation delays. Packaged in DHVQFN-20 (SOT764-1), it includes Schmitt-trigger action on all inputs for high noise immunity.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards
• TTL-compatible input logic levels for direct interfacing
• Overvoltage tolerant inputs allowing mixed-voltage operation
• DHVQFN package with side-wettable flanks for AOI inspection

Buffers, Drivers, Receivers, Transceivers Applications

• Automotive electronic systems requiring robust signal transmission
• Mixed voltage environments utilizing 5 V and 3.3 V logic families
• High-noise industrial control circuits demanding Schmitt-trigger inputs

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'X' against manufacturer documentation to confirm reel packaging specifications. Ensure the DHVQFN-20 footprint matches the design layout, noting the thermal pad requirements. Confirm that the AEC-Q100 Grade 1 rating aligns with the target automotive application's environmental stress criteria before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL input compatibility is required alongside wide supply voltage flexibility. The DHVQFN package offers space efficiency compared to SO or TSSOP variants. Consider the overvoltage tolerance feature if interfacing directly with 5 V buses while operating at lower voltages. Verify thermal dissipation needs against the specified power derating curves for the chosen ambient temperature range.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHC/AHCT245-Q100 family of octal bus transceivers. It shares functional similarities with the 74AHC245 variant but differs in input logic thresholds, specifically adopting TTL levels instead of CMOS levels. The BQ designation indicates the DHVQFN-20 package type, distinguishing it from SO or TSSOP versions within the same logical family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT245D-Q100 serves as a pin-compatible alternative in the SO20 package. The 74AHCT245PW-Q100 provides the same functionality in a TSSOP20 package. Verify package dimensions and thermal characteristics when substituting these variants.