NXP Semiconductors 74LVC14APW/AUJ

Overview

74LVC14APW/AUJ from Nexperia is a hex inverting Schmitt trigger IC with 5 V tolerant inputs, designed for level translation between 3.3 V and 5 V logic domains. It operates from 1.2 V to 3.6 V supply, delivers ≤6.4 ns propagation delay at 3.3 V, and supports industrial temperature range (–40 °C to +125 °C) in TSSOP14 package. It enables noise-immune waveform shaping in mixed-voltage digital interfaces.

For engineers reviewing the 74LVC14APW/AUJ datasheet, 74LVC14APW/AUJ pinout, 74LVC14APW/AUJ application, or 74LVC14APW/AUJ equivalent, this page provides verified functional identity, validated pin mapping, confirmed Schmitt-trigger transfer characteristics (VT+ = 1.2–2.0 V, VT− = 0.8–1.5 V at VCC = 3.6 V), and real-world use cases in pulse conditioning and oscillator circuits.

Technical Context

The 74LVC14APW/AUJ implements six independent CMOS inverting Schmitt triggers with hysteresis (VH = 0.3–1.2 V), enabling robust noise rejection in slow-rising or noisy input signals. Each buffer features overvoltage-tolerant inputs rated to 5.5 V, allowing direct interfacing with legacy 5 V TTL outputs while powered from 1.2–3.6 V supplies.

Its static and dynamic behavior is fully specified across –40 °C to +125 °C, with propagation delay tightly controlled (1.0–8.0 ns depending on VCC and temperature), output skew ≤1.5 ns, and input capacitance ≤4.0 pF - ensuring predictable timing in clockless signal conditioning and relaxation oscillator designs.

Key Specifications

Pinout & Package

TSSOP14 package (SOT402-1): plastic thin shrink small outline, 14 leads, body width 4.4 mm, 0.65 mm pitch, 1.20 mm max height.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverting Schmitt trigger applications.

Compared with SN74LVC14APWR and 74LVCH14PW, the 74LVC14APW/AUJ offers the widest hysteresis (up to 1.2 V) and lowest ICC (≤40 μA), making it optimal for ultra-low-power, high-noise industrial sensing - whereas SN74LVC14APWR trades hysteresis for tighter TI process matching, and 74LVCH14PW adds bus-hold at the cost of higher static consumption.

Availability

74LVC14APW/AUJ is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and IoT sensor node designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC14APW/AUJ 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 specializing in high-volume, high-reliability logic, discrete, and MOSFET solutions, with manufacturing rooted in process consistency and automotive-grade quality systems.

The 74LVC14APW/AUJ belongs to Nexperia's LVC logic family, engineered for low-voltage, mixed-signal interfacing in industrial, computing, and consumer applications where noise immunity and supply flexibility are critical.

FAQ

What is the absolute maximum input voltage rating for 74LVC14APW/AUJ?

The 74LVC14APW/AUJ supports input voltages up to 5.5 V regardless of VCC level, as confirmed in Table 4 (Limiting Values) of the official Nexperia datasheet Rev. 11. This overvoltage tolerance allows safe interfacing with 5 V TTL outputs while operating from 1.2–3.6 V supply - a key enabler for mixed-voltage system design without external level shifters. Exceeding 5.5 V risks permanent damage.

Does 74LVC14APW/AUJ support operation at 1.2 V supply?

Yes, 74LVC14APW/AUJ is fully specified down to 1.2 V supply, as stated in Table 5 (Recommended Operating Conditions). At 1.2 V, propagation delay increases to ≤16 ns and output drive capability reduces, but all six Schmitt-trigger functions remain operational with defined VT+ and VT− thresholds. This enables use in ultra-low-power battery-backed subsystems where 1.8 V or 3.3 V rails are unavailable.

How many independent Schmitt-trigger inverters does 74LVC14APW/AUJ contain?

The 74LVC14APW/AUJ contains exactly six independent inverting Schmitt triggers, labeled 1A→1Y through 6A→6Y. Each pair operates autonomously with its own input hysteresis and output drive capability. Pin configurations in Figures 4 and 5 confirm the 14-pin TSSOP layout allocates six inputs (pins 1,3,5,9,11,13), six outputs (pins 2,4,6,8,10,12), plus VCC (pin 14) and GND (pin 7).

What is the typical hysteresis voltage (VH) of 74LVC14APW/AUJ at 3.3 V supply?

At VCC = 3.3 V, the 74LVC14APW/AUJ exhibits VH = VT+ − VT− ≈ 0.4–0.5 V, derived from Table 9: VT+ = 1.2–2.0 V and VT− = 0.8–1.5 V. This hysteresis provides ≥400 mV noise margin - sufficient to reject common-mode spikes and slow-edge interference in industrial sensor interfaces. The exact value varies with temperature and process, but remains within the 0.3–1.2 V range across full operating conditions.

Is 74LVC14APW/AUJ pin-compatible with other 74LVC14A package variants?

Yes, the 74LVC14APW/AUJ (TSSOP14/SOT402-1) shares identical pin numbering and function mapping with SO14 (74LVC14AD), DHVQFN14 (74LVC14ABQ), and DHXQFN14 (74LVC14ABZ) variants, as confirmed in Section 6.1 and Figure 4 of the datasheet. All variants use the same 1A–6A/1Y–6Y/GND/VCC assignment, enabling direct PCB footprint substitution where thermal and mechanical constraints permit.