Nexperia USA Inc. 74HCT04BQ-Q100,115

Overview

74HCT04BQ-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified hex inverter IC with TTL-compatible inputs, operating from 4.5 V to 5.5 V over -40 °C to +125 °C. It delivers 19 ns typical propagation delay (VCC = 4.5 V, CL = 50 pF), ±4.0 mA output drive, and features clamp diodes enabling interface to voltages exceeding VCC - used in automotive body control modules for signal inversion and level translation.

For engineers reviewing the 74HCT04BQ-Q100 datasheet, 74HCT04BQ-Q100 pinout, 74HCT04BQ-Q100 application, or 74HCT04BQ-Q100 equivalent, key selection criteria include TTL input compatibility, DHVQFN14 thermal performance, automotive-grade reliability, and precise timing behavior under high-temperature operation.

Technical Context

This device implements six independent CMOS-based inverters with Schmitt-trigger–free logic gates and input clamp diodes for overvoltage tolerance. Its TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5 V) ensure direct compatibility with legacy 5 V logic families without external biasing.

Designed for automotive environments, it meets AEC-Q100 Grade 1 requirements and supports full industrial temperature range operation (-40 °C to +125 °C) with static current ≤40 μA and latch-up immunity >100 mA per JESD78 Class II Level B.

Key Specifications

Pinout & Package

DHVQFN14 package (SOT762-1): 2.5 × 3.0 × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection, no leads, 14-terminal quad flat construction with exposed thermal pad (non-electrical, optional GND connection).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter applications.

Compared with 74HCT04D-Q100 and 74HCT04PW-Q100, the 74HCT04BQ-Q100 offers superior thermal efficiency (9.6 mW/K derating above 98 °C), AOI-enabled manufacturability, and smallest PCB footprint - making it optimal for space-constrained, high-volume automotive modules requiring zero-defect solder joint assurance.

Availability

74HCT04BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control units, instrument clusters, power distribution systems, and ADAS camera interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT04BQ-Q100 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert specializing in high-performance, high-reliability logic, analog, and discrete components, with leadership in automotive-qualified devices and advanced packaging technologies.

The 74HCT series targets automotive and industrial applications demanding TTL-compatible logic with AEC-Q100 compliance, emphasizing robustness, precise timing, and seamless integration into 5 V control subsystems.

FAQ

What is the maximum allowable input voltage relative to VCC?

The 74HCT04BQ-Q100 includes internal clamp diodes that permit input voltages up to VCC + 0.5 V, provided external current-limiting resistors restrict IIK to ±20 mA. This enables safe interfacing with signals exceeding the supply rail - such as 5.5 V sensor outputs on a 5 V system - without damage or logic corruption.

Does this device support mixed-voltage interfacing (e.g., 3.3 V inputs)?

Yes: with VCC = 4.5 V to 5.5 V, the TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) accept 3.3 V logic HIGH signals directly. No level shifter is needed, as 3.3 V exceeds the 2.0 V minimum VIH requirement and remains within absolute maximum ratings.

How does the DHVQFN14 package improve thermal performance versus SO14?

The DHVQFN14 (SOT762-1) package achieves lower junction-to-board thermal resistance than SO14 due to its exposed thermal pad and shorter internal thermal path. Its 9.6 mW/K derating above 98 °C - compared to SO14's 10.1 mW/K above 100 °C - provides ~12% better sustained power handling at 125 °C ambient, critical for under-hood applications.

Can unused inverters be left unconnected without affecting performance?

Unused inputs must be tied HIGH or LOW - floating inputs cause increased ICC, noise susceptibility, and potential oscillation due to CMOS input stage metastability. Outputs of unused gates should remain open; no termination is required. This is specified in Nexperia's application guidance for 74HCT logic families.