Nexperia USA Inc. 74AHCU04BQ-Q100X

Overview

74AHCU04BQ-Q100 from Nexperia is an automotive-grade hex unbuffered inverter IC in DHVQFN14 package, delivering six independent single-stage CMOS inverters with balanced propagation delays (as low as 2.4 ns at VCC = 5.0 V, CL = 15 pF), AEC-Q100 Grade 1 qualification (-40 °C to +125 °C), and input overvoltage tolerance up to 7.0 V - used in automotive clock buffering, oscillator circuits, and level-shifting interfaces.

For engineers reviewing the 74AHCU04BQ-Q100 datasheet, 74AHCU04BQ-Q100 pinout, 74AHCU04BQ-Q100 application, or 74AHCU04BQ-Q100 equivalent, key selection criteria include its unbuffered inverter architecture, DHVQFN thermal performance, AEC-Q100 compliance, and compatibility with LSTTL logic families.

Technical Context

This device implements six independent Si-gate CMOS inverter stages without internal buffering, enabling minimal propagation delay skew and high-speed signal inversion. Its input structure accepts voltages up to 7.0 V regardless of VCC, supporting mixed-voltage interfacing.

It operates across 2.0 V–5.5 V supply range with static VIH/VIL thresholds defined per VCC (e.g., VIH = 4.4 V min at VCC = 5.5 V), and features ESD protection exceeding HBM 2000 V and CDM 1000 V - critical for automotive PCB handling and system-level robustness.

Key Specifications

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection, thermally enhanced with exposed die 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 74AHCU04BQ-Q100, the LVC variant trades minor drive margin for lower-voltage operation and reduced quiescent current, while the TI part retains full functional equivalence but sacrifices DHVQFN's thermal and AOI advantages - making the BQ version optimal for new automotive designs demanding both reliability and manufacturability.

Availability

74AHCU04BQ-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, engine control units, infotainment clock trees, and ADAS camera interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHCU04BQ-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 focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions optimized for automotive, industrial, and computing applications.

The 74AHCU04-Q100 belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for robust signal inversion in harsh environments - emphasizing AEC-Q100 compliance, thermal resilience, and mixed-voltage interoperability.

FAQ

Is the exposed thermal pad on the DHVQFN14 package electrically connected?

No. The exposed pad (terminal 1 index area) is not electrically tied to any internal node. It may be left floating or connected to GND for thermal improvement, but no electrical requirement exists - and if soldered, must remain isolated from other signals to avoid shorting.

Can 74AHCU04BQ-Q100 drive a 50 pF load at 10 MHz while staying within power limits?

Yes. At VCC = 5.0 V and fi = 10 MHz, dynamic power is PD = CPD × VCC² × fi × N = 9.1 pF × 25 V² × 10 MHz × 6 ≈ 13.7 mW, well below the 500 mW thermal limit. Static ICC remains under 40 μA, confirming full functionality within spec.

What is the maximum input transition rate supported without causing output instability?

The device specifies Δt/ΔV ≤ 20 ns/V at VCC = 5.0 V ± 0.5 V, meaning input edges slower than 20 ns per volt of swing (e.g., 100 ns for 5 V transition) avoid excessive shoot-through current. Faster edges are acceptable but require careful layout to minimize ringing.

Does this part support crystal oscillator implementation per Figure 12 in the datasheet?

Yes. The unbuffered inverter architecture provides the necessary high open-loop gain (Gol ≈ 12) and phase margin for Pierce oscillator topologies. External components R1, R2, C1, C2 are selected per Table 8–9 to stabilize oscillation across 3 kHz–600 kHz, with typical ICC ≈ 5 mA at VCC = 5 V.