NXP Semiconductors 74LVU04PW,112

Overview

74LVU04PW,112 from NXP Semiconductors is a low-voltage Si-gate CMOS hex unbuffered inverter, pin- and function-compatible with 74HCU04. It operates across 1.0 V to 5.5 V, delivers propagation delays as low as 6 ns at 3.3 V/15 pF, and supports industrial temperature range (−40 °C to +125 °C) in TSSOP14 package. It serves as a core timing and signal inversion element in crystal oscillators and linear amplifier stages.

For engineers reviewing the 74LVU04PW,112 datasheet, 74LVU04PW,112 pinout, 74LVU04PW,112 application, or 74LVU04PW,112 equivalent, key selection criteria include unbuffered output stage behavior, ground bounce < 0.8 V at 3.3 V, VIH/VIL thresholds across 1.2–5.5 V supply, and compatibility with legacy 74HCU04 layouts requiring minimal redesign.

Technical Context

The 74LVU04PW,112 implements six independent single-stage CMOS inverters with no internal buffering-enabling sharp edge response and direct use in feedback-based oscillator topologies. Its input transition rate tolerance ranges from 500 ns/V (at 1.0–2.0 V) down to 50 ns/V (at 4.5–5.5 V), supporting stable operation across mixed-voltage system interfaces.

Each inverter exhibits rail-to-rail output swing capability, with VOH > 2 V undershoot and VOL ≤ 0.2 V under light loads (100 µA), while maintaining ESD robustness (HBM > 2000 V, MM > 200 V). The device is characterized for full functionality from −40 °C to +125 °C, with static and dynamic parameters guaranteed over this extended range.

Key Specifications

Pinout & Package

TSSOP14 package (SOT402-1): plastic thin shrink small outline, 14-lead, body width 4.4 mm, 0.65 mm pitch, exposed pad not electrically connected (floating or tied to VCC per datasheet guidance).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC04PW,118 and SN74AUP1G04DBVR, the 74LVU04PW,112 uniquely supports sub-1.2 V operation, unbuffered topology for oscillator design, and full hex integration in TSSOP14-making it irreplaceable for compact, low-voltage timing and analog-linear applications.

Availability

74LVU04PW,112 is available at Aetrix Electronics and suitable for crystal oscillator design, linear amplifier stages, astable multivibrator timing circuits, and waveform shaping applications requiring stable component supply across industrial temperature grades.

Supply support for 74LVU04PW,112 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The 74LVU04PW,112 belongs to NXP's legacy logic family designed for low-voltage, high-noise-immunity digital interfacing and analog-compatible signal conditioning-targeting cost-sensitive, reliability-critical embedded systems where pin compatibility and wide supply range are essential.

FAQ

What is the maximum operating frequency achievable with 74LVU04PW,112 in a crystal oscillator circuit?

The 74LVU04PW,112 supports crystal oscillator operation up to 20 MHz with standard AT-cut fundamental-mode crystals. Its unbuffered architecture and 6 ns typical propagation delay at 3.3 V enable stable startup and low-jitter output. Frequency limit depends on crystal load capacitance, external resistor values (R1/R2), and PCB layout parasitics-not an intrinsic IC specification. For frequencies above 10 MHz, careful attention to grounding and trace length is required to maintain phase margin.

Can 74LVU04PW,112 operate reliably at 1.2 V supply voltage?

Yes, the 74LVU04PW,112 is fully specified and guaranteed to function at VCC = 1.2 V across −40 °C to +125 °C. Static characteristics including VIH (≥1.0 V), VIL (≤0.2 V), VOH (≥1.2 V), and VOL (≤0.2 V) are validated at this voltage. Propagation delay increases to 35 ns typical, but remains functional for low-speed timing and battery-backed applications where ultra-low power is critical.

Is the exposed thermal pad on the TSSOP14 package of 74LVU04PW,112 electrically connected?

No, the exposed pad on the 74LVU04PW,112 TSSOP14 (SOT402-1) package is not electrically connected to any internal node. Per NXP datasheet Section 6.2, it is attached to the substrate via conductive die attach material but has no electrical or mechanical requirement to be soldered. If soldered, the land must remain floating or be connected to VCC-never to GND or left as a floating metal island.

How does the unbuffered output stage of 74LVU04PW,112 affect its use in linear amplifier configurations?

The unbuffered output stage gives the 74LVU04PW,112 a high-output-impedance characteristic in the linear region, enabling predictable transconductance (gfs ≈ 10–40 mA/V depending on VCC) and open-loop gain (~20) necessary for stable amplifier operation. Buffered inverters would introduce additional poles and phase shift, degrading frequency response and making compensation difficult. This unbuffered behavior is explicitly leveraged in Figure 13 of the 74LVU04 datasheet for linear gain stages.

Does 74LVU04PW,112 support hot-swap or live-insertion in backplane applications?

No, the 74LVU04PW,112 is not designed for hot-swap operation. Its absolute maximum ratings do not include powered insertion stress testing, and the input clamping current (±20 mA) and output clamping current (±50 mA) are insufficient to safely absorb bus transients during live insertion. For backplane or hot-plug applications, dedicated hot-swap controllers or buffers with Ioff protection (e.g., 74LVCxTxxx series) should be used instead of the 74LVU04PW,112.