74HCT240BQ-Q100,11

Overview

The Nexperia 74HCT240BQ-Q100,11 is an octal buffer and line driver featuring inverting 3-state outputs. It belongs to the HCT logic series and operates within a supply voltage range of 4.5 V to 5.5 V. The device is housed in a DHVQFN-20 package (SOT764-1) with side-wettable flanks. It meets AEC-Q100 Grade 1 qualification standards for automotive applications and supports operating temperatures from -40 °C to +125 °C.

Feature Summary

• Automotive product qualification in accordance with AEC-Q100 (Grade 1)
• Inverting 3-state outputs controlled by active LOW enable inputs
• DHVQFN package with Side-Wettable Flanks enabling Automated Optical Inspection (AOI)
• High noise immunity and CMOS low power dissipation

Applications

• Automotive electronic systems requiring qualified logic buffers
• Bus-oriented transmissions utilizing 3-state control
• Clock drivers and buffer circuits in high-speed digital designs

Procurement Notes

Verify that the specific ordering suffix matches the required tape and reel packaging configuration. Confirm the component grade aligns with project specifications for automotive reliability. Ensure the DHVQFN-20 footprint corresponds to the design layout requirements. Validate compliance with RoHS directives before final procurement authorization.

Selection Notes

Select this component when an octal inverting buffer with 3-state capability is required for automotive environments. The HCT series ensures compatibility with Low-Power Schottky TTL (LSTTL) logic levels. The DHVQFN package offers a compact solution suitable for space-constrained printed circuit board layouts while maintaining thermal performance.

Part Context

This part is a member of the Nexperia 74HCT240-Q100 family, which includes variants in SO20 and TSSOP20 packages. All members share identical electrical characteristics and functionality but differ in physical housing dimensions. The BQ designation specifically identifies the DHVQFN-20 variant designed for surface-mount assembly with enhanced solder joint inspection capabilities.

Replacement Considerations

Direct pin-compatible replacements include other 74HCT240-Q100 variants such as the 74HCT240D-Q100 or 74HCT240PW-Q100 if package changes are acceptable. Verify that any substitute maintains the same AEC-Q100 Grade 1 qualification status.