Nexperia USA Inc. 74LVC3GU04DC,125

Overview

74LVC3GU04DC,125 from Nexperia is a triple unbuffered CMOS inverter IC operating from 1.65 V to 5.5 V supply, featuring ±24 mA output drive at 3.0 V, overvoltage-tolerant inputs up to 5.5 V, and guaranteed operation from –40 °C to +125 °C in the VSSOP8 (SOT765-1) package. It enables level-shifting and signal inversion in mixed-voltage digital logic interfaces.

For engineers reviewing the 74LVC3GU04DC,125 datasheet, 74LVC3GU04DC,125 pinout, 74LVC3GU04DC,125 application, or 74LVC3GU04DC,125 equivalent, key selection criteria include input voltage tolerance across 3.3 V/5 V domains, propagation delay under 4.5 ns at 3.3 V, output drive strength at low V_CC, thermal derating behavior in VSSOP8, and compatibility with crystal oscillator and linear amplifier configurations per application note.

Technical Context

This device implements three independent unbuffered inverter stages using standard CMOS topology-no internal buffering between input and output-resulting in lower propagation delay but reduced noise immunity compared to buffered variants. Each gate exhibits symmetrical input thresholds (VIH ≈ 0.8×V_CC, VIL ≈ 0.2×V_CC) and rail-to-rail output swing.

It supports mixed-voltage interfacing via overvoltage-tolerant inputs (rated to 5.5 V regardless of V_CC) and operates across industrial and extended temperature ranges. The unbuffered architecture allows use in crystal oscillator feedback loops (per Fig. 8–9) and linear amplifier configurations where gain and phase response are critical.

Key Specifications

Pinout & Package

VSSOP8 (SOT765-1) plastic very thin shrink small outline package: 8 leads, body width 2.3 mm, lead pitch 0.5 mm, pin 1 indicator at lower-left corner below marking "VU4".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G04DCUR, the 74LVC3GU04DC,125 offers superior board-space efficiency and tighter thermal derating control in VSSOP8; versus 74AUP3G04GW,125, it trades ultra-low ICC for robust mixed-voltage interoperability and extended temperature capability.

Availability

74LVC3GU04DC,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, USB-C power delivery sequencing, and crystal oscillator circuits requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVC3GU04DC,125 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 delivering high-performance, reliable logic, discrete, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in high-volume applications.

The 74LVC series targets general-purpose, high-speed, low-voltage CMOS logic with emphasis on mixed-signal interfacing, industrial reliability, and drop-in compatibility across voltage domains - designed specifically for embedded control, sensor fusion, and power management subsystems.

FAQ

Can 74LVC3GU04DC,125 drive a 50 Ω transmission line directly?

Yes - at V_CC = 3.3 V, its ±24 mA output drive supports 50 Ω termination with <10% overshoot and <1 ns edge distortion, provided output traces are impedance-controlled and local decoupling is used. For sustained 50 Ω loads, verify junction temperature remains below 125 °C using the 4.9 mW/K derating curve.

Is 74LVC3GU04DC,125 qualified for automotive applications?

No - although rated from –40 °C to +125 °C, it is not AEC-Q100 qualified and lacks automotive-specific stress testing, failure reporting, or PPAP documentation. Use only in non-safety-critical automotive subsystems (e.g., infotainment, lighting) where customer assumes full qualification responsibility.

How does unbuffered architecture affect crystal oscillator stability?

The absence of internal buffering reduces phase shift and improves loop gain margin, enabling reliable startup and frequency stability with standard AT-cut crystals (1–20 MHz) and load capacitors (12–22 pF). However, it requires careful PCB layout to minimize stray capacitance on the feedback path, as specified in Figure 9 of the datasheet.

What is the maximum capacitive load for guaranteed timing performance?

Timing parameters (e.g., t_pd ≤ 4.5 ns at 3.3 V) are characterized with 30–50 pF load capacitance, including probe and jig effects. For loads >50 pF, propagation delay increases linearly (~0.02 ns/pF), and output rise/fall times degrade; maintain CL ≤ 75 pF for sub-6 ns timing compliance in production designs.