Nexperia USA Inc. 74AHCU04D,118

Overview

74AHCU04D,118 from Nexperia is a high-speed Si-gate CMOS hex unbuffered inverter with six independent single-stage inverters, pin-compatible with LSTTL, operating from -40 °C to +125 °C, supporting VCC = 2.0–5.5 V, and delivering tpd ≤ 7.0 ns (VCC = 5.0 V, CL = 50 pF) for digital logic level translation and oscillation circuits.

For engineers reviewing the 74AHCU04D,118 datasheet, 74AHCU04D,118 pinout, 74AHCU04D,118 application, or 74AHCU04D,118 equivalent, this device serves as a low-power, high-temperature-tolerant inverter for clock buffering, crystal oscillator biasing, and signal inversion in industrial control and sensor interface systems where input overvoltage tolerance and balanced propagation delay are critical.

Technical Context

The 74AHCU04D implements six identical unbuffered CMOS inverter stages-each with no internal gain staging-enabling direct use in linear amplifier configurations and Pierce crystal oscillator topologies. Its inputs accept voltages up to 7.0 V regardless of VCC, and its output drive capability supports ±8.0 mA at VCC = 4.5 V.

Designed per JEDEC Std 7A and qualified across -40 °C to +125 °C, it features ESD protection exceeding 2000 V HBM and 1000 V CDM, and operates reliably under fast input transition rates down to 10 ns/V (VCC = 3.3 V) and 20 ns/V (VCC = 5.0 V).

Key Specifications

Pinout & Package

74AHCU04D,118 is housed in a plastic small outline package (SO14), SOT108-1, with 14 leads and 3.9 mm body width. Pin 1 is marked by an index notch or dot; the package is lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC04APWR and 74HC04D,653, the 74AHCU04D,118 uniquely combines 5.5 V tolerance, 125 °C qualification, and unbuffered linearity-making it the sole option among the three for crystal oscillator design and mixed-voltage industrial signal conditioning.

Availability

74AHCU04D,118 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and sensor interface applications requiring stable component supply across extended temperature and voltage ranges.

Supply support for 74AHCU04D,118 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, discrete, and MOSFET solutions optimized for reliability and energy efficiency.

The 74AHCU04 belongs to Nexperia's advanced high-speed CMOS logic family, engineered specifically for industrial, automotive, and computing applications demanding wide temperature operation, overvoltage resilience, and precise timing behavior.

FAQ

Can the 74AHCU04D,118 be used in linear amplifier mode?

Yes-it is explicitly characterized for linear operation in crystal oscillator and amplifier configurations. Its unbuffered architecture allows biasing in the transition region; Figure 11 in the datasheet provides resistor values and gain expectations, with typical open-loop gain of 12 and unity-gain bandwidth of 5 MHz at VCC = 3.3 V.

What is the maximum recommended load capacitance for reliable 10 MHz switching?

At VCC = 5.0 V and Tamb = 25 °C, CL ≤ 50 pF maintains tpd ≤ 7.0 ns and ensures stable edge rates. For sustained 10 MHz operation across -40 °C to +125 °C, limit CL to 30 pF to preserve timing margin and avoid excessive dynamic power dissipation (CPD = 9.1 pF).

Does the 74AHCU04D,118 require external pull-up or pull-down resistors on unused inputs?

No-unused inputs must be tied HIGH or LOW via direct connection to VCC or GND. Floating inputs cause increased ICC, unpredictable output states, and potential thermal overstress due to partial conduction in both PMOS and NMOS devices within the inverter stage.

Is the SO14 package (SOT108-1) of 74AHCU04D,118 compatible with standard 0.050″ pitch PCB footprints?

Yes-the SOT108-1 package has 1.27 mm (0.050″) lead pitch, 3.9 mm body width, and conforms to JEDEC MS-012. Its land pattern matches IPC-7351B SOIC-14 density 'N', enabling drop-in replacement in existing 0.050″ pitch layouts without redesign.