NXP Semiconductors 74LVU04DB,112

Overview

74LVU04DB,112 from NXP Semiconductors is a low-voltage Si-gate CMOS hex unbuffered inverter, pin- and function-compatible with 74HCU04. It delivers six independent single-stage inverters with rail-to-rail output swing, operates from 1.0 V to 5.5 V, supports −40 °C to +125 °C ambient range, and is used in crystal oscillator circuits requiring fast propagation delay (6 ns typical at 3.3 V, 15 pF).

For engineers reviewing the 74LVU04DB,112 datasheet, 74LVU04DB,112 pinout, 74LVU04DB,112 application, or 74LVU04DB,112 equivalent, this page provides verified package mapping (SSOP14), confirmed static/dynamic electrical parameters, validated oscillator and linear amplifier use cases, and two technically documented alternative parts for supply continuity planning.

Technical Context

The 74LVU04DB,112 implements six identical unbuffered CMOS inverter stages-each with no internal gain staging-enabling precise phase inversion and high-fidelity signal shaping in feedback loops. Its input threshold is VCC-dependent (e.g., VIH = 2.4 V at VCC = 3.3 V), and output drive capability is asymmetric: VOH ≥ 2.82 V at IO = −6 mA, VOL ≤ 0.40 V at IO = 6 mA (VCC = 3.0 V).

Designed for low-noise analog applications, it features low ground bounce (< 0.8 V typical at VCC = 3.3 V) and controlled undershoot (> 2 V typical VOH undershoot), supporting stable operation in crystal oscillator and astable multivibrator topologies without external compensation networks.

Key Specifications

Pinout & Package

74LVU04DB,112 uses the SSOP14 (plastic shrink small outline package; 14 leads; body width 5.3 mm) per SOT337-1 standard. Pin 1 is index-marked; pin 7 is GND; pin 14 is VCC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVU04DB,112, the 74LVU04D,118 offers identical functionality in a larger SOIC package ideal for manual assembly, while SN74LVC04APW provides stronger drive but lacks the unbuffered linearity needed for oscillator design-making the original SSOP variant optimal for mixed-signal timing and analog gain applications.

Availability

74LVU04DB,112 is available at Aetrix Electronics and suitable for crystal oscillator design, linear amplifier circuits, astable multivibrator timing generators, and waveform shaping applications requiring stable component supply across industrial temperature ranges.

Supply support for 74LVU04DB,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 74LVU04DB,112 belongs to NXP's LVU logic family, designed specifically for low-voltage, high-speed, mixed-signal applications where unbuffered inverter characteristics enable precision timing and analog signal conditioning.

FAQ

What is the maximum operating frequency of the 74LVU04DB,112 in oscillator applications?

The 74LVU04DB,112 does not specify a maximum oscillator frequency in its datasheet, but practical crystal oscillator designs using this device reliably operate up to 20 MHz with fundamental-mode quartz crystals. Performance depends on external load capacitance, crystal ESR, and PCB layout; for frequencies above 10 MHz, keep trace lengths short and minimize parasitic capacitance to maintain loop gain margin. The 74LVU04DB,112's 6 ns typical propagation delay supports stable oscillation in this range.

Can the 74LVU04DB,112 be used as a linear amplifier with DC coupling?

Yes, the 74LVU04DB,112 can operate as a DC-coupled linear amplifier when biased in its transition region using external resistors R1 and R2 per Figure 13. At VCC = 3.0 V, it delivers typical open-loop gain Gol = 20 and unity-gain bandwidth ≈5 MHz. Input offset is not specified, so precision applications require calibration; the 74LVU04DB,112's unbuffered structure ensures predictable transconductance (gfs ≈ 30 mA/V) critical for gain stability.

Is the 74LVU04DB,112 pin-compatible with standard 74HC04 or 74HCU04 packages?

Yes, the 74LVU04DB,112 is pin- and function-compatible with 74HCU04 and 74HC04 in 14-pin packages including SSOP14, SO14, and DIP14. Pin assignments match exactly: inputs (1A–6A) and outputs (1Y–6Y) occupy identical positions, with GND at pin 7 and VCC at pin 14. This allows direct substitution in existing designs, though voltage and timing margins differ-verify VCC compatibility (1.0–5.5 V for 74LVU04DB,112 vs. 2.0–6.0 V for HC variants).

What decoupling is recommended for stable 74LVU04DB,112 operation in crystal oscillator circuits?

For stable 74LVU04DB,112 operation in crystal oscillator circuits, place a 100 nF X7R ceramic capacitor between VCC (pin 14) and GND (pin 7), located within 5 mm of the IC. Add a 10 µF tantalum or aluminum electrolytic capacitor near the power entry point for bulk filtering. Avoid shared ground paths with digital noise sources; use separate GND vias for the oscillator section to prevent jitter increase caused by ground bounce (< 0.8 V typical in 74LVU04DB,112).

Does the 74LVU04DB,112 support operation at 1.2 V supply voltage?

Yes, the 74LVU04DB,112 is fully specified down to 1.2 V supply voltage per Table 5, with guaranteed functionality at 1.0 V (input levels referenced to GND or VCC). At VCC = 1.2 V, propagation delay increases to 35 ns typical (Table 7), and output drive reduces to ±100 µA, making it suitable for ultra-low-power timing and sensing interfaces where speed is secondary to energy efficiency. The 74LVU04DB,112 maintains valid logic thresholds (VIH = 1.0 V, VIL = 0.2 V) at this voltage.